SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-K

                  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                   For the fiscal year ended December 31, 1997
                           Commission File No. 0-24946

                           KNIGHT TRANSPORTATION, INC.
             (Exact name of registrant as specified in its charter)

                 Arizona                                        86-0649974
     (State or other jurisdiction of                         (I.R.S. Employer
      incorporation or organization)                        Identification No.)
                                            
                                             
                                             
         5601 West Buckeye Road                                    85043    
           Phoenix, Arizona                                     (Zip Code)  
(Address of principal executive offices)                    
                                                   
                                                   
                                 (602) 269-2000
              (Registrant's telephone number, including area code)

        Securities Registered Pursuant to Section 12(b) of the Act: None

           Securities Registered Pursuant to Section 12(g) of the Act:

         Title of Each Class             Name of Exchange on Which Registered
         -------------------             ------------------------------------

     Common Stock, $0.01 par value                   NASDAQ-NMS

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days. Yes X  No
                                      ---   ---

Indicate by check mark if disclosure of delinquent  filers  pursuant to Item 405
of Regulation  S-K is not contained  herein,  and will not be contained,  to the
best of registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ ]

The  aggregate  market  value of  voting  stock  held by  non-affiliates  of the
registrant as of March 4, 1998,  was  $120,409,586  (based upon $28.25 per share
being  the  closing  sale  price  on  that  date  as  reported  by the  National
Association of Securities  Dealers Automated  Quotation  System-National  Market
System  ("NASDAQ-NMS")).  In making this  calculation,  the issuer has  assumed,
without admitting for any purpose,  that all executive officers and directors of
the company, and no other persons, are affiliates.

The number of shares outstanding of the registrant's common stock as of March 4,
1998 was 9,951,809.

The  Information  Statement for the Annual Meeting of Shareholders to be held on
May 13, 1998 is incorporated into this Form 10-K Part III by reference.

                                TABLE OF CONTENTS
                           KNIGHT TRANSPORTATION, INC.
                            FORM 10-K FOR THE FISCAL
                          YEAR ENDED DECEMBER 31, 1997




                                                                                                  Pages
                                                                                                  -----
                                                                                           
PART I.
         Item 1.    Business.....................................................................    1
         Item 2.    Properties...................................................................    6
         Item 3.    Legal Proceedings............................................................    7
         Item 4.    Submission of Matters to a Vote of Security Holders..........................    7
                                                                                               
PART II.                                                                                       
         Item 5.    Market for Company's Common Equity and Related Shareholder Matters...........    8
         Item 6.    Selected Financial Data......................................................    8
         Item 7.    Management's Discussion and Analysis of Financial Condition and
                    Results of Operations........................................................    9
         Item 7A    Quantitative and Qualitative Disclosures About Market Risk...................   16
         Item 8.    Financial Statements and Supplementary Data..................................   17
         Item 9.    Changes in and Disagreements on Accounting and Financial Disclosure..........   17
                                                                                               
PART III.                                                                                      
         Item 10.   Directors and Executive Officers of the Company..............................   17
         Item 11.   Executive Compensation.......................................................   17
         Item 12.   Security Ownership of Certain Beneficial Owners and Management...............   18
         Item 13.   Certain Relationships and Related Transactions...............................   18
                                                                                               
PART IV.                                                                                       
         Item 14.   Exhibits, Financial Statement Schedules, and Reports on Form 8-K.............   18
                                                                                               
SIGNATURES.......................................................................................   21
                                                                                            
INDEX TO EXHIBITS


                                     PART I

Item 1.  Business

                  Except for the historical  information  contained herein,  the
discussion  in this  Annual  Report  contains  forward-looking  statements  that
involve risks,  assumptions  and  uncertainties  which are difficult to predict.
Words such as  "believe,"  "may,"  "could" and "likely" and  variations of these
words, and similar  expressions,  are intended to identify such  forward-looking
statements.  The Company's  actual  results could differ  materially  from those
discussed  herein.  Factors that could cause or contribute  to such  differences
include,  but are not limited  to,  those  discussed  in the  sections  entitled
"Factors  That May Affect  Future  Results"  and  "Management's  Discussion  and
Analysis of Financial  Condition  and Results of  Operations,"  as well as those
discussed in this Part and elsewhere in this Annual Report.

General

                  Knight  Transportation, Inc. ("Knight" or  the "Company") is a
short-to-medium  haul,  dry van  truckload  carrier  headquartered  in  Phoenix,
Arizona. The Company transports general  commodities,  including consumer goods,
packaged  foodstuffs,  paper  products,  beverage  containers  and  imported and
exported  commodities.  The Company  provides  truckload  carrier service to the
Western United States out of its Phoenix, Arizona headquarters, in the Texas and
Louisiana region through its facility in Katy,  Texas, and in the Midwest and on
the East Coast through its facility in Indianapolis, Indiana.

                  The  Company  commenced  operations  in July 1990, when Kevin,
Gary and Keith Knight  joined  Randy  Knight to establish a new  short-to-medium
haul  truckload  carrier.  The Company's  stock has been  publicly  traded since
October  1994.  From 1992 to 1997,  Knight's  revenue has grown to $99.4 million
from $19.6  million,  and net income has  increased  to $10.3  million from $1.9
million.  This growth resulted from expansion of the Company's customer base and
increased volume from existing  customers,  and was facilitated by the continued
expansion  of the  Company's  fleet,  including  an  increase  in the  Company's
independent contractor fleet.

Operations

                  Knight's  operating  strategy  focuses  on four key  elements:
growth, regional operations, customer service, and operating efficiencies.

                  o Growth.  Knight's objective is to achieve significant growth
through the controlled  expansion of high quality service to existing  customers
and the development of new customers in its expanded  market areas.  The Company
has developed an  independent  contractor  program to increase its tractor fleet
and provide additional service to customers, while minimizing capital investment
by the Company. The Company believes that there are significant opportunities to
continue to increase its business in the short-to-medium haul market by pursuing
existing strategies and expanding its dedicated services.

                  o Regional Operations.  The Company's headquarters  facilities
in Phoenix,  Arizona allow it to serve the Western  region of the United States.
The Company has established operations near Houston, Texas to serve customers in
the Texas and  Louisiana  region  and in  Indianapolis,  Indiana,  from which it
provides  regional and  dedicated  service in the Midwest and on the East Coast.
Knight  anticipates  that its three  regional  operating  bases  will  provide a
platform for future growth.
                                       -1-

                  o Customer Service.  Knight's operating strategy is to provide
a high level of service to customers, establishing the Company as a preferred or
"core carrier" for customers who have time sensitive, high volume or high weight
requirements.  The Company's  services include multiple pick-ups and deliveries,
dedicated equipment and personnel,  on-time pickups and deliveries within narrow
time frames,  specialized  driver training,  and other services tailored to meet
its customers'  needs. The Company has adopted an equipment  configuration  that
meets a wide  variety  of  customer  needs  and  facilitates  customer  shipping
flexibility.  The Company  uses light  weight  tractors  and high cube  trailers
capable of handling both high volume and high weight shipments.

                  o  Operating  Efficiencies.  The  Company  employs a number of
strategies  that it  believes  are  instrumental  to its  efforts to achieve and
maintain operating efficiencies. Knight seeks to maintain a simplified operation
that  focuses on  operating  dry vans in  particular  geographical  and shipping
markets.  This approach allows the Company to concentrate its marketing  efforts
to achieve higher  penetration of its targeted  service areas. The Company seeks
operating  economies by purchasing a generally  compatible fleet of tractors and
trailers that  facilitates  Knight's  ability to serve a broad range of customer
needs and thereby maximizes equipment  utilization and efficiencies in equipment
maintenance and positioning.

Marketing and Customers

                  The  Company's  sales  and  marketing  function  is led by its
senior management, who are assisted by other sales professionals.  The Company's
marketing  team  emphasizes  the Company's  high level of service and ability to
accommodate a variety of customer  needs.  The Company's  marketing  efforts are
designed to take  advantage of the trend among  shippers  toward  private  fleet
conversions,  outsourcing  transportation  requirements,  and  the  use of  core
carriers to meet shippers' needs.

                  Knight has a  diversified  customer  base.  For the year ended
December  31, 1997,  the  Company's 25 largest  customers  represented  51.1% of
operating  revenue;  its ten largest  customers  represented  32.9% of operating
revenue;  and its five  largest  customers  represented  23.0% of the  Company's
operating  revenue.  The Company  believes  that a  substantial  majority of the
Company's 25 largest  customers  regard Knight as a preferred or "core carrier."
Most of the Company's  truckload  carriage  contracts are  cancelable on 30 days
notice.  The loss of one or more large customers could have a materially adverse
effect on the Company's operating results.

                  Knight seeks to provide consistent,  timely, flexible and cost
efficient service to shippers. The Company's objective is to develop and service
specified  traffic lanes for customers who ship on a consistent  basis,  thereby
providing a sustained,  predictable  traffic flow and  ensuring  high  equipment
utilization.  The  short-to-medium  haul segment of the truckload carrier market
demands timely pickup and delivery and, in some cases, response on short notice.
Although price is a primary concern to all shippers, the Company seeks to obtain
a competitive  advantage by providing high quality  service to customers.  To be
responsive  to  customers'  and  drivers'  needs,   the  Company  often  assigns
particular drivers and equipment to prescribed routes,  providing better service
to customers, while obtaining higher equipment utilization.

                  Knight's  standard   dedicated  fleet  services  also  involve
management  of a  significant  part of a customer's  transportation  operations.
Under a dedicated  carriage service  agreement,  the Company  provides  drivers,
equipment and  maintenance,  and, in some instances,  transportation  management
services that supplement the customer's in-house transportation  department. The
Company's  primary  arrangements  for  dedicated  services in the  Houston  area
obligate the Company to provide a portion of its customer's
                                       -2-

transportation  needs  from  one of the  customer's  distribution  centers.  The
Company  furnishes these services through Company provided revenue equipment and
drivers.

                  Each of the  Company's  two  regional  operations  centers  is
linked to the Company's  Phoenix  headquarters by an IBM AS/400 computer system.
The  capabilities of this system enhance the Company's  operating  efficiency by
providing cost effective access to detailed information concerning equipment and
shipment status and specific customer requirements,  and also permit the Company
to respond promptly and accurately to customer requests. The system also assists
the Company in matching  available  equipment  and loads.  The Company  provides
electronic data interchange ("EDI") services to shippers requiring such service.

Drivers, Other Employees, and Independent Contractors

                  The recruitment,  training and retention of qualified  drivers
is essential to support the Company's  continued  growth and to meet the service
requirements of the Company's customers. Drivers are selected in accordance with
specific  objective  Company  quality  guidelines  relating  primarily to safety
history,  driving  experience,   road  test  evaluations,   and  other  personal
evaluations,  including  physical  examinations  and mandatory  drug and alcohol
testing.

                  The  Company  seeks to maintain a  qualified  driver  force by
providing attractive and comfortable equipment, direct communication with senior
management,  competitive  wages and benefits,  and other incentives  designed to
encourage driver retention and long-term  employment.  Many drivers are assigned
to  dedicated  or  semi-dedicated   fleet  operations,   thereby  enhancing  job
predictability.  Drivers  are  recognized  for  providing  superior  service and
developing good safety records.

                  Knight's  drivers are compensated on the basis of miles driven
and  length  of haul.  Drivers  also are  compensated  for  additional  flexible
services provided to the Company's  customers.  Drivers  participate in Knight's
401(k) program and in Company-sponsored  health, life and dental plans. Knight's
drivers and other employees who meet eligibility  criteria also participate in a
stock option plan and a cash employee incentive program.

                  As  of  December  31,  1997,   Knight  employed  906  persons,
including  736  drivers  and 26  maintenance  personnel.  None of the  Company's
employees is represented by a labor union.

                  The Company also maintains an independent  contractor program.
Because  independent  contractors  provide their own tractors,  the  independent
contractor  program  provides  the  Company  an  alternate  method of  obtaining
additional  revenue  equipment.  The  Company  intends  to  continue  its use of
independent  contractors.  As of December 31, 1997, the Company had 192 tractors
owned and  operated by  independent  contractors.  Each  independent  contractor
enters  into a contract  with the  Company  pursuant  to which it is required to
furnish a tractor and a driver  exclusively to transport,  load and unload goods
carried  by the  Company.  Independent  contractors  are  paid a fixed  level of
compensation  based on total of trip-loaded and empty miles and are obligated to
maintain  their own  tractors and pay for their own fuel.  The Company  provides
trailers for each independent contractor.  The Company also provides maintenance
services for its independent contractors for a charge.
                                       -3-

Revenue Equipment

                  The  Company  operates  a fleet of  53-foot  long,  high  cube
trailers,  including 50  refrigerated  trailers  and 15 flatbed  trailers in its
fleet as of March 4, 1998. The efficiency and flexibility  provided by its fleet
configurations  permit the  Company to handle  both high  volume and high weight
shipments.  Knight's fleet configuration also allows the Company to move freight
on a  "drop-and-hook"  basis,  increasing asset utilization and providing better
service  to  customers.  Knight  maintains  a high  trailer  to  tractor  ratio,
targeting  a ratio  of 2.7 to 1.  Management  believes  maintaining  this  ratio
promotes  efficiency and allows it to serve a large variety of customers'  needs
without significantly changing or modifying equipment.

                  Levels of growth in the Company's  tractor and trailer  fleets
are based on market  conditions,  and the Company's  experience and expectations
regarding  equipment  utilization.  In acquiring revenue equipment,  the Company
considers a number of factors,  including economy, price,  technology,  warranty
terms, manufacturer support, driver comfort and resale value. As of December 31,
1997, the Company operated 580 company tractors with an average age of 1.3 years
and 2,112 trailers with an average age of 2.2 years.  The Company also had under
contract,  as of December  31,  1997,  192  tractors,  operated  by  independent
contractors.

                  The  Company  seeks to  minimize  the  operating  costs of its
tractors  and trailers by  maintaining  a relatively  new fleet  featuring  cost
saving  technologies.  The  Company's  current  policy is to replace most of its
tractors  within 36 months  after the date of purchase  and replace its trailers
over a five to seven year period.  Actual replacement depends upon the condition
of particular equipment, its resale value and other factors. The Company employs
a continuous preventive  maintenance program designed to minimize equipment down
time,  facilitate  customer  service,  and enhance trade value when equipment is
replaced.  The Company believes that its equipment acquisition program allows it
to meet the needs of a wide range of customers in the dry van  truckload  market
while,  at the same time,  controlling  costs  relating to  maintenance,  driver
training and operations.

Safety and Risk Management

                  The  Company  is  committed  to  ensuring  the  safety  of its
operations.  The Company  regularly  communicates with drivers to promote safety
and instill safe work habits through  Company media and safety review  sessions.
The Company  conducts  quarterly  safety  training  meetings for its drivers and
independent contractors.  In addition, the Company has an innovative recognition
program  for driver  safety  performance,  and  emphasizes  safety  through  its
equipment specifications and maintenance programs. The Company's Safety Director
is involved in the review of all accidents.

                  The  Company  requires  prospective  drivers  to  meet  higher
qualification  standards than those required by the United States  Department of
Transportation  ("DOT").  The DOT  requires  the  Company's  drivers  to  obtain
national commercial drivers' licenses pursuant to regulations promulgated by the
DOT. The DOT also requires that the Company implement a drug and alcohol testing
program in  accordance  with DOT  regulations.  The Company's  program  includes
pre-employment, random, pre- and post-accident drug testing.

                  The Company's  Chief  Financial  Officer and Vice President of
Human Resources and  Administration  are  responsible  for securing  appropriate
insurance  coverages at cost effective  rates. The primary claims arising in the
Company's business consist of cargo loss and damage and auto liability (personal
injury and property damage). The Company is self-insured for personal injury and
property
                                       -4-

damage  up to a  maximum  limit  of  $100,000  per  occurrence,  for  collision,
comprehensive,  and  cargo  liability  up to a  combined  limit of  $12,500  per
occurrence,  and for workers'  compensation up to $250,000 per  occurrence.  The
Company maintains insurance to cover liabilities in excess of these amounts. The
Company's  insurance  policies  provide  for  general  liability  coverage up to
$1,000,000 per occurrence and $2,000,000 in the aggregate;  automobile liability
coverage up to $1,000,000 per  occurrence;  cargo insurance up to $2,500,000 per
occurrence;  and additional  umbrella liability coverage up to $20,000,000.  The
Company also maintains primary and excess coverage for employee medical expenses
and hospitalization,  and damage to physical  properties.  The Company carefully
monitors claims and  participates  actively in claims estimates and adjustments.
The  estimated  costs  of  the  Company's  self-insured  claims,  which  include
estimates for incurred but unreported  claims, are accrued as liabilities on the
Company's  balance  sheet.  Management  believes  that the  Company's  insurance
coverages are adequate to protect the Company from significant losses.

Competition

                  The  entire  trucking  industry  is  highly   competitive  and
fragmented.  The Company competes primarily with other regional  short-to-medium
haul truckload carriers,  logistics  providers and national carriers.  Railroads
and air freight also provide  competition,  but to a lesser degree.  Competition
for the freight  transported by the Company is based on freight rates,  service,
and  efficiency.  The Company also  competes  with other motor  carriers for the
services  of drivers  and  independent  contractors.  A number of the  Company's
competitors have greater financial  resources,  own more equipment,  and carry a
larger  volume of  freight  than the  Company.  The  Company  believes  that the
principal competitive factors in its business are service,  pricing (rates), and
the  availability  and  configuration  of  equipment  that  meets a  variety  of
customers' needs. Knight, in addressing its markets, believes that its principal
competitive   strength  is  its  ability  to  provide   timely,   flexible   and
cost-efficient  service to  shippers.  In  general,  increased  competition  has
created  downward  pressure on rates and  increased  the need to provide  higher
levels of service to customers.

Regulation

                  Historically,  the Interstate  Commerce Commission ("ICC") and
various  state  agencies  regulated   truckload   carriers'   operating  rights,
accounting  systems,  rates  and  charges,  safety,  mergers  and  acquisitions,
periodic financial reporting and other matters. In 1995, federal legislation was
passed that preempted state  regulation of prices,  rates, and services of motor
carriers and eliminated the ICC.  Several ICC functions were  transferred to the
Department of  Transportation  ("DOT"),  but a lack of implementing  regulations
currently  prevents the Company from  assessing  the full impact of this action.
Generally,  the  trucking  industry  is subject to  regulatory  and  legislative
changes that can have a materially adverse effect on operations.

                  Interstate  motor  carrier  operations  are  subject to safety
requirements  prescribed  by the DOT.  Such matters as weight and  dimensions of
equipment  are also subject to federal and state  regulation.  In 1988,  the DOT
began  requiring  national  commercial  drivers'  licenses for interstate  truck
drivers.

                  The  Company's  motor carrier  operations  are also subject to
environmental laws and regulations,  including laws and regulations dealing with
underground fuel storage tanks, the  transportation  of hazardous  materials and
other environmental  matters.  The Company has initiated programs to comply with
all  applicable  environmental  regulations.  As part  of its  safety  and  risk
management program, the Company periodically performs an internal  environmental
review so that the Company can achieve
                                       -5-

environmental  compliance and avoid  environmental  risk. The Company's  Phoenix
facility was  designed,  after  consultation  with  environmental  advisors,  to
contain and properly dispose of hazardous substances and petroleum products used
in connection with the Company's  business.  The Company has rarely  transported
environmentally   hazardous   substances   and,  to  date,  has  experienced  no
significant claims for hazardous substance shipments. If the Company should fail
to  comply  with  applicable  regulations,  the  Company  could  be  subject  to
substantial fines or penalties and to civil or criminal liability.

                  The   Company's    operations    involve   certain    inherent
environmental  risks.  The Company has  installed a fuel island at its  Phoenix,
Arizona  headquarters  and maintains  above-ground  bulk fuel storage to provide
fuel for this  facility.  The Company's  Phoenix bulk fuel storage  facility has
been designed to minimize  environmental risk. There are two underground storage
tanks located on the Company's  Indianapolis  property. The tanks are subject to
regulation  under both federal and state law and are  currently  being leased to
and  operated  by an  independent,  third  party fuel  distributor.  The Company
assumed the lessor's  interest in the lease,  in connection with its purchase of
the property. The lessee has agreed to carry environmental  impairment liability
insurance,  naming the Company, as lessor, as an insured, covering the spillage,
seepage  or other  loss of  petroleum  products,  hazardous  wastes,  or similar
materials onto the leased  premises and has agreed to indemnify the Company,  as
lessor,  against  damage from such  occurrences.  The  Indianapolis  property is
located  approximately  0.1 mile east of  Reilly  Tar and  Chemical  Corporation
("Reilly"),  a federal superfund site listed on the National Priorities List for
clean-up.  The Reilly site has known soil and groundwater  contamination.  There
are also other  sites in the  general  vicinity  of the  Company's  Indianapolis
property that have known  contamination.  Environmental  reports obtained by the
Company have disclosed no evidence that activities on the Company's Indianapolis
property have caused or contributed to the area contamination.

                  The State of Arizona has enacted laws that provide for a water
quality  assurance  revolving  fund  ("WQARF").  The purpose of these laws is to
identify and remediate  areas of  groundwater  contamination  resulting from the
release of hazardous  substances.  Once an area of  contamination is identified,
the Arizona Department of Environmental  Quality ("ADEQ") designates the area as
a WQARF  Study Area in order to  determine  the extent of  contamination  and to
identity potentially responsible parties. Responsible parties are liable for the
cost of remediating contamination. In December 1987, ADEQ designated a 25 square
mile  area in West  Phoenix,  which  includes  the  Company's  Phoenix,  Arizona
location, as a WQARF Study Area. To date, ADEQ has not identified the Company as
a  potentially  responsible  party  or  the  Company's  facility  as a  facility
warranting  further  investigation  with  respect to the WQARF Study  Area.  The
Company has been located at its present Phoenix facility since 1990. Neither the
Company nor its predecessors  maintained  underground petroleum storage tanks at
the  Company's  Phoenix  location.  Prior to 1974,  the property  upon which the
Company's Phoenix, Arizona facilities are located was farm land.

                  The Company  believes it is currently  in material  compliance
with  applicable  laws and  regulations  and that the cost of compliance has not
materially   affected  results  of  operations.   See  "Legal  Proceedings"  for
additional information regarding certain regulatory matters.

Item 2.  Properties

                  The Company's  headquarters and principal place of business is
located at 5601 West Buckeye Road,  Phoenix,  Arizona on approximately 45 acres.
The Company owns  approximately  35 acres and the  remaining 10 acres are leased
from Mr. L. Randy Knight,  an officer and director of the Company and one of its
principal  shareholders.  See "Certain  Relationships and Related Transactions,"
below, for additional information.
                                       -6-

                  In October 1997, the Company completed  construction of a bulk
fuel storage  facility and fueling islands based at its Phoenix  headquarters to
obtain greater operating  efficiencies.  The Company also commenced expansion of
its  headquarters  facilities.  The  Company  estimates  the  expansion  of  its
headquarters facilities will be completed by June 1998.

                  The Company owns and operates a 9.5 acre regional  facility in
Indianapolis,  Indiana.  The facility includes a truck terminal,  administrative
offices,  and dispatching and maintenance  services,  as well as room for future
expansion, and will serve as a base for the Company's operations in the Midwest.
The Company is presently planning the expansion of that facility.

                  The Company's operations near Houston are currently located on
the premises of one of the Company's significant customers, for whom it provides
dedicated  services.  These facilities also support the Company's  non-dedicated
operations in the Texas and Louisiana region.  The Company is seeking a separate
location in the Houston area for its regional services headquarters.

                  The Company leases office  facilities in California,  Oklahoma
and Utah,  which it uses for  fleet  maintenance,  record  keeping  and  general
operations.  The  Company is in the process of  purchasing  property in Fontana,
California  to serve as a trailer drop and  dispatching  facility to support the
Company's  operations  in  California.  The Company also leases space in various
locations for temporary  trailer storage.  Management  believes that replacement
space comparable to these facilities is readily obtainable, if necessary.

                  As of December 31, 1997, the Company's  aggregate monthly rent
for all leased properties was approximately $28,000.

                  The Company  believes  that its current  facilities  and those
under  expansion  are suitable and adequate for its present  needs.  The Company
periodically   seeks  to  improve  its  facilities  or  identify  new  favorable
locations.  The Company has not encountered  any significant  impediments to the
location or addition of new facilities.

Item 3.  Legal Proceedings

                  The Company is a party to  ordinary,  routine  litigation  and
administrative   proceedings  incidental  to  its  business.  These  proceedings
primarily  involve  personnel  matters,  including  EEO  claims  and  claims for
personal injury or property damage  incurred in the  transportation  of freight.
The  Company  maintains   insurance  to  cover  liabilities   arising  from  the
transportation of freight in amounts in excess of self-insured  retentions.  See
"Business -- Safety and Risk  Management." It is the Company's  policy to comply
with applicable equal employment  opportunity laws and the Company  periodically
reviews its policies and practices for equal employment opportunity compliance.

Item 4.  Submission of Matters to a Vote of Security Holders

                  The  Company  did  not  submit  any  matter  to a vote  of its
security holders during the fourth quarter of 1997.
                                       -7-

                                     PART II

Item 5.  Market For Company's Common Equity and Related Shareholder Matters

                  Since the  initial  public  offering of the  Company's  common
stock in October 1994,  the common stock has been traded on the NASDAQ  National
Market tier of The NASDAQ  Stock Market  under the symbol  KNGT.  The  following
table sets forth, for the period indicated, the high and low bid information per
share of the  Company's  common  stock as quoted  through the  NASDAQ-NMS.  Such
quotations reflect  inter-dealer  prices,  without retail markups,  markdowns or
commissions and, therefore,  may not necessarily  represent actual transactions.

                                                  High          Low
                                                  ----          ---
                  1996
                  ----
                  First Quarter                  $16.25        $13.13
                  Second Quarter                 $20.50        $15.00
                  Third Quarter                  $22.50        $18.25
                  Fourth Quarter                 $24.88        $18.63

                  1997
                  ----
                  First Quarter                  $25.25        $18.75
                  Second Quarter                 $28.50        $20.50
                  Third Quarter                  $28.75        $21.50
                  Fourth Quarter                 $32.00        $22.75

                  As of March 4, 1998, the Company had 63 shareholders of record
and  approximately  1,100 beneficial owners in security position listings of its
common stock.

                  The Company has never paid cash dividends on its common stock,
and it is the current  intention of management to retain earnings to finance the
growth of the Company's  business.  Future payment of cash dividends will depend
upon financial condition, results of operations, cash requirements,  and certain
corporate  law  requirements,  as well as other factors  deemed  relevant by the
Board of Directors.

Item 6.  Selected Financial Data

                  The selected consolidated  financial data presented below for,
and as of the end of, each of the years in the five-year  period ended  December
31, 1997,  are derived from the  Company's  Consolidated  Financial  Statements,
which have been audited by Arthur Andersen LLP,  independent public accountants,
as indicated in their report.  The information set forth below should be read in
conjunction with  "Management's  Discussion and Analysis of Financial  Condition
and Results of Operations," below, and the Consolidated Financial Statements and
Notes thereto included in Item 8 of this Form 10-K.
                                       -8-



                                                           Years Ended December 31,
                                            1997        1996         1995         1994         1993
                                            ----        ----         ----         ----         ----
                                          (Dollar amounts in thousands, except per share amounts and
                                          operating data)
                                                                                   
Statements of Income Data:
- --------------------------
Operating revenue                        $ 99,428     $ 77,504     $ 56,170     $ 37,543     $ 26,381
Operating expenses                         81,948       64,347       45,569       29,431       21,255
Income from operations                     17,480       13,157       10,601        8,112        5,126
Net interest expense and other                (18)        (346)        (196)        (734)        (844)
Income before income taxes                 17,462       12,810       10,406        7,378        4,282
Net income                                 10,252        7,510        5,806        4,094        2,447
Diluted Net income per share (1)             1.01          .78          .64          .49          .30
Balance Sheet Data (at End of Period):
- --------------------------------------
Working capital (deficit)                $  2,044     $  4,141     $   (293)    $  1,761     $   (787)
Total assets                               82,690       64,118       43,099       32,588       24,651
Long-term obligations, net of current        --             53          981        2,117        9,208
Shareholders' equity                       56,798       45,963       24,732       18,903        5,179
Operating Data (Unaudited):
- ---------------
Operating ratio(2)                           82.4%        83.0%        81.1%        78.4%        80.6%
Average revenue per mile                 $   1.22     $   1.24     $   1.26     $   1.29     $   1.22
Average length of haul (miles)                500          489          494          482          472
Empty mile factor                             9.6%         9.6%        10.3%        10.1%        11.8%
Tractors operated at end of period(3)         772          575          425          291          199
Trailers operated at end of period          2,112        1,529        1,044          639          489


Item 7.  Management's Discussion and Analysis of Financial Condition and Results
         of Operations

Introduction.

         Except for the historical  information contained herein, the discussion
in this Annual Report  contains  forward-looking  statements that involve risks,
assumptions  and  uncertainties  which are  difficult to predict.  Words such as
"believe,"  "may,"  "could" and "likely"  and  variations  of these  words,  and
similar expressions,  are intended to identify such forward-looking  statements.
The  Company's  actual  results  could differ  materially  from those  discussed
herein.  Factors that could cause or contribute to such differences 


- --------
         (1) Net income per share for all periods presented has been restated in
accordance with Statement of Financial  Accounting  Standards No. 128, "Earnings
per Share".

         (2) Operating expenses as a percentage of operating revenue.

         (3) Includes 192 independent  contractor  operated vehicles at December
31, 1997; 158 independent contractor operated vehicles at December 31, 1996; 115
independent   contractor   operated  vehicles  at  December  31,  1995;  and  29
independent contractor operated vehicles at December 31, 1994.
                                       -9-

include,  but are not limited to, those discussed below in the section  entitled
"Factors  That May Affect  Future  Results," as well as those  discussed in this
Item and elsewhere in this Annual Report.

General

         The  following  discussion  of the  Company's  financial  condition and
results of operations for the three-year  period ended December 31, 1997, should
be read in conjunction with the Company's  Consolidated Financial Statements and
Notes thereto contained elsewhere in this report.

         Knight was incorporated in 1989 and commenced  operations in July 1990.
For the  five-year  period  ended  December 31, 1997,  the  Company's  operating
revenue grew at a 38.4% compounded  annual rate, while net income increased at a
48.9% compounded annual rate.

         The Company has established  regional  operations in Phoenix,  Arizona,
Indianapolis, Indiana, and Katy, Texas. The Company's headquarters facilities in
Phoenix,  Arizona,  serve the Western United States. The Company's operations in
Indianapolis allow the Company to serve customers in the Midwest and on the East
Coast and provide a platform for the  expansion of the  Company's  operations in
those  regions.  The  Company's  operations  in Katy,  Texas were  undertaken to
provide  dedicated  service  to a large  customer  and to provide a base for the
expansion of operations in the Texas and Louisiana regions.

         The Company initiated an independent  contractor program in 1994. As of
December  31,  1997,  the  Company  had  192  tractors  owned  and  operated  by
independent  contractors.  As a result of the increase in the use of independent
contractors,  the Company has  experienced  a decrease  in  salaries,  wages and
benefits, fuel and maintenance, and other expenses, as a percentage of operating
revenue,  and  a  corresponding  increase  in  purchased   transportation  as  a
percentage of operating revenue.  Purchased transportation represents the amount
an independent  contractor is paid to haul freight for the Company on a mutually
agreed to per-mile  basis.  The Company's  decision to focus fleet  expansion on
independent  contractors  was based on such  factors  as the  Company's  reduced
capital  requirements,  since  the  independent  contractors  provide  their own
tractors,  the  lower  turnover  rate  that the  Company  has  experienced  with
independent  contractors,  and the  Company's  success in  attracting  qualified
independent contractors.

Results of Operations

         The  following  table sets forth the  percentage  relationships  of the
Company's expense items to operating revenue for the three-year period indicated
below:
                                      -10-

                                                    Years ended December 31,
                                                    ------------------------
                                                   1997       1996       1995
                                                   ----       ----       ----
          Operating revenue .................     100.0%     100.0%     100.0%
                                                  -----      -----      -----

          Operating expenses:
             Salaries, wages and benefits ...      28.2       28.7       29.1
             Fuel ...........................      10.2       10.2       10.9
             Operations and maintenance .....       5.6        5.2        6.6
             Insurance and claims ...........       2.5        3.6        3.7
             Operating taxes and licenses ...       4.1        3.9        3.8
             Communications .................        .6         .6         .5
             Depreciation and amortization ..       9.6        9.7        9.7
             Purchased transportation .......      19.2       18.6       14.0
             Miscellaneous operating expenses       2.4        2.5        2.8
                                                  -----      -----      -----
                   Total operating expenses .      82.4       83.0       81.1
                                                  -----      -----      -----
          Income from operations ............      17.6       17.0       18.9

          Net interest expense ..............      --           .5         .4
                                                  -----      -----      -----
          Income before income taxes ........      17.6       16.5       18.5

          Income taxes ......................       7.3        6.8        8.2
                                                  -----      -----      -----
          Net Income ........................      10.3%       9.7%      10.3%
                                                  =====      =====      =====

Fiscal 1997 Compared to Fiscal 1996

         Operating  revenue  increased  by 28.3% to $99.4  million  in 1997 from
$77.5 million in 1996.  This increase  resulted from  expansion of the Company's
customer base and increased  volume from existing  customers and was facilitated
by a substantial increase in the Company's tractor and trailer fleet,  including
an increase in the Company's independent  contractor fleet, during 1997 compared
to 1996. The Company's fleet  increased by 34.3% to 772 tractors  (including 192
owned by  independent  contractors)  as of December  31, 1997 from 575  tractors
(including  158 owned by  independent  contractors)  as of  December  31,  1996.
Average  revenue per mile declined to $1.22 per mile for the year ended December
31, 1997 from $1.24 per mile for the same period in 1996,  reflecting  continued
pressure on rates and increased  competition  in all of the Company's  operating
regions.  Equipment utilization averaged 121,459 miles per tractor in 1997, down
slightly when compared to an average of 121,960 miles per tractor in 1996.  This
change reflects increased  competition in the short-to-medium  truckload carrier
business.

         Salaries,  wages and benefits  expense  decreased  as a  percentage  of
operating  revenue to 28.2% for 1997 from 28.7% for 1996 primarily as the result
of the increase in the ratio of tractors to  non-driving  employees.  This ratio
measures  productivity  and  efficiency of  non-driving  personnel.  The Company
records accruals for workers'  compensation as a component of its claim accrual,
and the related expense is reflected in salaries, wages and benefits expenses in
its consolidated statements of income.

         Fuel expense remained  constant as a percentage of operating revenue at
10.2% for both 1997 and 1996.
                                      -11-

         Operations  and  maintenance  expense  increased  as  a  percentage  of
operating  revenue  to 5.6% for 1997 from 5.2% in 1996.  This  increase  was the
result of lower  revenue per mile and the decrease in the number of  independent
contractors  as a  percentage  of the  Company's  entire fleet to 24.8% in 1997,
compared to 27.5% in 1996.

         Insurance  and claims  expense  decreased as a percentage  of operating
revenue to 2.5% for 1997 compared to 3.6% for 1996. This decrease  resulted from
lower insurance premiums and a decrease in the Company's accident rate.

         Operating taxes and license expense increased  slightly as a percentage
of operating  revenue to 4.1% for 1997 from 3.9% for 1996. The increase resulted
primarily from the increased cost  associated with the licensing of trailers for
use in states with higher licensing fees.

         Communications  expenses remained constant,  with no significant change
taking place in 1997 compared to 1996.

         Depreciation and amortization  expense  decreased  slightly to 9.6% for
1997 from 9.7% in 1996. The small decrease  resulted from an increase in revenue
being  generated at each of the  Company's  facilities  and the absence of large
expenditures for any additional facilities.

         Purchased  transportation expense increased to 19.2% in 1997 from 18.6%
in 1996 due to the  decrease  in the  Company's  revenue  per mile.  Independent
contractors are compensated at a fixed rate per mile.

         Miscellaneous  operating expenses remained steady,  with no significant
change taking place in 1996.

         As a  result  of the  above  factors,  the  Company's  operating  ratio
(operating  expenses as a percentage  of operating  revenue) was 82.4% for 1997,
compared to 83.0% for 1996.

         Net interest expense  decreased as a percentage of operating revenue to
less than 0.1% for 1997 from 0.5% in 1996 as a result of the  application of the
proceeds from the Company's  secondary  stock offering in July 1996,  which were
used to reduce debt and to purchase revenue equipment.

         Income  taxes have been  provided  at the  statutory  federal and state
rates,  adjusted for certain  permanent  differences in income for tax purposes.
Income tax expense  increased  as a  percentage  of revenue to 7.3% for the year
ended December 31, 1997 from 6.8% for the year ended December 31, 1996 primarily
due to the lower revenue per mile.

         As a result of the  preceding  changes,  the  Company's net income as a
percentage of operating revenue was 10.3% in 1997, compared to 9.7% in 1996.

Fiscal 1996 Compared to Fiscal 1995

         Operating  revenue  increased  by 38.0% to $77.5  million  in 1996 from
$56.2 million in 1995.  This increase  resulted from  expansion of the Company's
customer base and increased  volume from existing  customers and was facilitated
by a substantial increase in the Company's tractor and trailer fleet,  including
an increase in the Company's independent  contractor fleet, during 1996 compared
to 1995. The Company's fleet  increased by 35.3% to 575 tractors  (including 158
owned by independent contractors) as of December
                                      -12-

31, 1996 from 425 tractors  (including 115 owned by independent  contractors) as
of December 31, 1995.  Average  revenue per mile  declined to $1.24 per mile for
the year ended  December  31,  1996 from  $1.26 per mile for the same  period in
1995. Equipment utilization averaged 121,960 miles per tractor in 1996, compared
to an average of 120,714 miles per tractor in 1995.  The decrease in revenue per
mile was the result of  increased  competition  in the  Western  United  States,
coupled with increased competition in the Company's new operating regions in the
Midwest and in Texas and Louisiana.

         Salaries,  wages and benefits  expense  decreased  as a  percentage  of
operating revenue to 28.7% for 1996 from 29.1% for 1995, primarily as the result
of the increase in the ratio of independent  contractors to Company drivers. The
Company records  accruals for workers'  compensation as a component of its claim
accrual,  and the related  expense is reflected in salaries,  wages and benefits
expenses in its consolidated statements of income.

         Fuel expense  decreased as a percentage  of operating  revenue to 10.2%
for 1996 from 10.9% in 1995.  Although the Company's  gross fuel costs increased
during  1996,  the  Company was able to recoup the  majority of the  incremental
increase with the implementation of a fuel surcharge.  Additionally, an increase
in the Company's independent contractor fleet contributed to the decrease in the
Company's cost of fuel as a percentage of revenue.  Independent  contractors are
required to pay their own fuel costs.

         Operations  and  maintenance  expense  decreased  as  a  percentage  of
operating  revenue  to 5.2% for 1996 from 6.6% in 1995.  This  decrease  was the
result of  eliminating  the use of leased  trailers  through the purchase of new
trailers  and from the rapid  growth  of the  Company's  independent  contractor
program.

         Insurance  and  claims  expense  remained   relatively  constant  as  a
percentage of operating  revenue for the years ended  December 31, 1996 and 1995
as the result of premium costs and claims remaining steady during the period.

         Operating taxes and license expense increased  slightly as a percentage
of operating  revenue to 3.9% for the year ended December 31, 1996 from 3.8% for
the year ended  December 31,  1995.  The increase  resulted  primarily  from the
increased  cost  associated  with  the  licensing  of new  trailers,  which  was
partially offset by the growth in the Company's independent  contractor program.
Independent  contractors  are  required  to pay for their  own fuel and  mileage
taxes.

         Communications  expenses remained constant,  with no significant change
taking place in 1996 compared to 1995.

         Depreciation and amortization  expense increased  slightly for the year
ended  December 31, 1996,  but  remained  constant as a percentage  of operating
revenue at 9.7% compared to the same period in 1995.  Although the Company added
a significant  number of trailers to its fleet,  the incremental cost was offset
by the growth in the Company's independent contractor program.

         Purchased  transportation expense increased to 18.6% in 1996 from 14.0%
in 1995 due to an increase in the Company's use of  independent  contractors  to
158 as of December 31, 1996, from 115 as of December 31, 1995.

         Miscellaneous  operating expenses remained steady,  with no significant
change taking place in 1996.
                                      -13-

         As a  result  of the  above  factors,  the  Company's  operating  ratio
(operating  expenses as a percentage of operating revenue) for 1996 was 83.0% as
compared to 81.1% for 1995.

         Net interest  expense  remained  constant as a percentage  of operating
revenue at 0.5% in 1996 compared to 0.4% in 1995 as a result of the  application
of the  proceeds  from the  Company's  initial and  secondary  stock  offerings,
respectively, to reduce debt and to purchase revenue equipment.

         Income  taxes have been  provided  at the  statutory  federal and state
rates,  adjusted for certain  permanent  differences in income for tax purposes.
Income tax expense  decreased  as a  percentage  of revenue to 6.8% for the year
ending  December  31,  1996,  from 8.2% for the year ended  December  31,  1995,
primarily  due  to the  Company  discontinuing  reimbursements  to  drivers  for
non-deductible meals and other expenses. The reduction in reimbursed expenses to
drivers was offset by an increase in driver compensation.

         As a result of the  preceding  changes,  the  Company's net income as a
percentage of operating revenues was 9.7% in 1996 compared to 10.3% for 1995.

Liquidity and Capital Resources

         The  growth  of the  Company's  business  has  required  a  significant
investment in new revenue  equipment.  The Company's primary source of liquidity
has been funds  provided by  operations,  term  borrowings to finance  equipment
purchases, the Company's line of credit, and the Company's initial and secondary
public offerings in 1994 and 1996, respectively.  Net cash provided by operating
activities totaled approximately $23.6 million,  $14.3 million and $10.7 million
for the years ended December 31, 1997, 1996 and 1995, respectively.

         Capital  expenditures  for the  purchase of revenue  equipment,  office
equipment and leasehold  improvements totaled approximately $26.3 million, $24.8
million and $13.3 million for the years ended December 31, 1997,  1996 and 1995,
respectively.   The  Company  anticipates  that  capital  expenditures,  net  of
trade-ins,  will be approximately  $28 million for 1998, to be used primarily to
acquire new revenue equipment to expand the Company's fleet, to upgrade existing
facilities, and to acquire additional facilities.

         Net  cash  used  in  financing  activities  and  net  direct  equipment
financing was  approximately  $.8 million for the year ended  December 31, 1997.
Net cash provided by financing activities and net direct equipment financing was
$8.3 million for the year ended  December  31, 1996.  Net cash used in financing
activities and net direct equipment  financing was approximately $.7 million for
the year ended  December  31,  1995.  These  changes  were due to the  Company's
ability to offset the cost of purchasing  revenue equipment with the proceeds of
the Company's secondary stock offering.

         The Company  maintains a $10 million  revolving line of credit with its
lender and uses that line to finance the  acquisition  of revenue  equipment and
other  corporate  purposes  to the extent the cost of such  acquisitions  is not
provided  by funds from  operations.  Under the  Company's  line of credit,  the
Company is  obligated to comply with certain  financial  covenants.  The rate of
interest on borrowings  against the line of credit will vary  depending upon the
interest rate election made by the Company, based on either the London Interbank
Offered Rate (LIBOR plus .625%),  or the prime rate.  At December 31, 1997,  and
March 10, 1998,  the Company had  $2,000,000 in  borrowings  under its revolving
line of credit.

         Management  believes that the cash flow from  operating  activities and
available  borrowing  will be  sufficient  to meet the  Company's  capital needs
through the next 18 months. The Company will continue to
                                      -14-

have significant capital  requirements over the long term, which may require the
Company to incur debt or seek  additional  equity  capital  in the  future.  The
availability of this capital will depend upon prevailing market conditions,  the
market price of the Common Stock and other factors over which the Company has no
control, as well as the Company's financial condition and results of operations.

Seasonality

         To date, the Company's  revenue has not shown any significant  seasonal
pattern.  Because the Company operates primarily in Arizona,  California and the
Western United States,  winter weather generally has not adversely  affected the
Company's business. Expansion of the Company's operations in the Midwest, on the
East Coast,  and in the Texas and Louisiana  regions could expose the Company to
greater operating variances due to seasonal weather in these regions.

Inflation

         Many of the Company's operating expenses, including fuel costs and fuel
taxes,  are sensitive to the effects of inflation,  which could result in higher
operating costs. The effects of inflation on the Company's business during 1997,
1996 and 1995 generally were not significant.

Year 2000 Capabilities.

         The Company's computer systems are Year 2000 compliant, or will be made
Year 2000 compliant within the next 18 months. Neither the "Year 2000 issue" nor
the financial effects of any reviews,  testing, or modifications the Company may
undertake  in  response to that issue are  expected  to have a material  adverse
effect on the Company's business or its consolidated financial position, results
of  operations or cash flows.  At this time,  the Company is unable to determine
whether the impact of the "Year 2000 issue" on its  customers or suppliers  will
affect the Company.

Recently Issued Accounting Pronouncements

         In June 1997, the Financial  Accounting  Standards  Board (FASB) issued
Statement of Financial  Accounting  Standards No. 130 (SFAS No. 130),  Reporting
Comprehensive  Income.  SFAS No. 130  establishes  standards  for  reporting and
display of comprehensive income and its components (revenues, gains, and losses)
in a full set of  general-purpose  financial  statements.  SFAS No. 130 requires
that all items that are required to be recognized under accounting  standards as
components of comprehensive  income be reported in a financial statement that is
displayed with the same prominence as other financial statements. This statement
is   effective   for  fiscal   years   beginning   after   December   15,  1997.
Reclassification  of  financial  statements  for earlier  periods  provided  for
comparative purposes is required.  In management's opinion, the adoption of SFAS
No. 130 will not have a material impact on the Company's  financial  position or
results of operations.

         In June  1997,  the  FASB  issued  Statement  of  Financial  Accounting
Standards No. 131, (SFAS No. 131),  Disclosures  About Segments of an Enterprise
and Related  Information,  which  supersedes  Statement of Financial  Accounting
Standards No. 14,  Financial  Reporting  for Segments of a Business  Enterprise.
SFAS No. 131 establishes  standards for the way that public business enterprises
report information about operating  segments in annual financial  statements and
requires that those  enterprises  report  selected  information  about operating
segments  in  interim  financial   reports  issued  to  shareholders.   It  also
establishes  standards  for related  disclosures  about  products and  services,
geographic areas, and major customers. This
                                      -15-

statement is effective  for financial  statements  for periods  beginning  after
December 15, 1997. In the initial year of application,  comparative  information
for earlier years is to be restated.  In management's  opinion,  the adoption of
SFAS No. 131 will not have a material impact on the Company's reported financial
position or results of operations.

Factors That May Affect Future Results

         A number of factors over which the Company has little or no control may
affect the Company's future results.  Fuel prices,  insurance  costs,  liability
claims,  interest rates, the availability of qualified drivers,  fluctuations in
the  resale  value of  revenue  equipment  and  customers'  business  cycles and
shipping  demands are  economic  factors over which the Company has little or no
control.  Significant  increases or rapid fluctuations in fuel prices,  interest
rates or  increases in insurance  costs or liability  claims,  to the extent not
offset by increases in freight rates, would reduce the Company's  profitability.
Although the Company's  independent  contractors  are responsible for paying for
their own equipment,  fuel and other operating costs,  significant  increases in
these costs could  cause them to seek  higher  compensation  from the Company or
other contractual opportunities. Difficulty in attracting or retaining qualified
drivers or a downturn in  customers'  business  cycles or shipping  demands also
could have a material  adverse  effect on the  growth and  profitability  of the
Company.  If a shortage of drivers  should occur in the future the Company could
be required to adjust its driver  compensation  package,  which could affect the
Company's  profitability  if not offset by an increase in rates.  The  Company's
growth has been made  possible  through the  addition of new revenue  equipment.
Difficulty  in  financing  or  obtaining  new revenue  equipment  (for  example,
delivery delays or the unavailability of independent contractors) could restrict
future growth.  If the resale value of the Company's  revenue  equipment were to
decline,  the Company  could be forced to retain some of its  equipment  longer,
with a resulting increase in operating expenses for maintenance and repairs.

         The Company has experienced significant and rapid growth in revenue and
profits since the  inception of its business in 1990.  There can be no assurance
that the Company's  business  will continue to grow in a similar  fashion in the
future or that the Company can effectively adapt its management,  administrative
and operational systems to respond to any future growth.  Further,  there can be
no assurance that the Company's operating margins will not be adversely affected
by future  changes in and expansion of the  Company's  business or by changes in
economic conditions.

         Currently,   a  significant   portion  of  the  Company's  business  is
concentrated  in the  Arizona  and  California  markets  and a general  economic
decline or a natural  disaster in either of these  markets could have a material
adverse effect on the growth and profitability of the Company. If the Company is
successful in deriving a significant portion of its revenues from markets in the
Texas and  Louisiana  regions  and the Midwest and on the East Coast in the near
future, its growth and profitability  could be materially  adversely affected by
general  economic   declines  or  natural   disasters  in  those  markets.   See
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations"; and "Business -- Operations and Marketing and Customers."

         The Company has established  operations near Houston,  Texas to provide
dedicated  services  to one of its larger  customers  and to  commence  regional
service  in  the  Texas  and  Louisiana  regions  and  initiated  operations  in
Indianapolis, Indiana, in order to access markets in the Midwest and on the East
Coast.  These  operations  will require the  commitment  of  additional  revenue
equipment  and  personnel,   as  well  as  management   resources,   for  future
development. These initiatives represent the first established operations of the
Company in markets  outside of its primary  regional  operations  in the Western
United States. Should
                                      -16-

the growth in the Company's  operations near Houston,  Texas or in Indianapolis,
Indiana slow or stagnate,  the results of Company  operations could be adversely
affected.  The Company may encounter  operating  conditions in these new markets
that  differ  substantially  from those  previously  experienced  in its Western
United States  markets.  There can be no assurance  that the Company's  regional
operating  strategy as employed in the Western United States,  can be duplicated
successfully  or that it will not take  longer  than  expected or require a more
substantial  financial  commitment than  anticipated in order for the Company to
generate positive operating results in these new markets.

Item 7A.   Quantitative and Qualitative Disclosures About Market Risk.

         Pursuant to Financial  Accounting Reporting Release Number 48 issued by
the Securities and Exchange  Commission in January 1997, the Company is required
to disclose information  concerning market risk with respect to foreign exchange
rates,  interest rates,  and commodity  prices.  The Company has elected to make
such  disclosures,  to the  extent  applicable,  using  a  sensitivity  analysis
approach, based on hypothetical changes in interest rates and commodity prices.

         The  Company  has  not  had  occasion  to  use   derivative   financial
instruments  for risk  management  purposes  and  does  not use them for  either
speculation  or trading.  Because the Company's  operations  are confined to the
United States, the Company is not subject to foreign currency risk.

         The Company is subject to interest  rate risk, to the extent it borrows
against  its line of credit  or incurs  additional  debt in the  acquisition  of
revenue  equipment.  The Company  attempts to manage its  interest  rate risk by
carrying as little debt as possible.  The Company has not entered into  interest
rate swaps or other  strategies  designed  to protect it against  interest  rate
risk. In the opinion of  management,  an increase in short-term  interest  rates
would not have a material adverse effect on the Company's  financial  condition,
based on  the level of debt  carried by the  Company  as of  December  31, 1997.
Management  does not  foresee or expect any  significant  changes in exposure to
interest rate fluctuations or in  how that exposure is managed by the Company in
the near future. The Company has not issued corporate debt instruments.

         The  Company  is  subject  to  commodity  price  risk with  respect  to
purchases  of fuel and tires.  The  Company  has not used  derivative  financial
instruments to manage these risks. The Company has installed fuel islands at its
Phoenix, Arizona and Indianapolis facilities which enable it to purchase fuel at
"rack" prices,  saving pumping  charges.  Where  possible,  the Company seeks to
participate  in tire  testing  programs  to reduce the cost of tires.  It is the
Company's policy to pass on price increases in fuel, tires, or other commodities
through rate  increases or  surcharges,  to the extent the existing  market will
permit such costs to be passed  through to the  customer.  If the  Company  were
unable to pass  increased  costs on to customers  through rate  increases,  such
increases could adversely affect the Company's results of operations.

Item 8.     Financial Statements and Supplementary Data

         The  Consolidated  Balance  Sheets of Knight  Transportation,  Inc. and
Subsidiaries  as of  December  31,  1997 and 1996 and the  related  Consolidated
Statements of Income, Shareholders' Equity, and Cash Flows for each of the three
years in the period ended December 31, 1997, together with the related notes and
report of Arthur Andersen LLP, independent public accountants,  are set forth at
pages 25 through 39, below.
                                      -17-

Item 9.     Changes in and Disagreements on Accounting and Financial Disclosure

         None.



                                    PART III

Item 10.    Directors And Executive Officers of The Company

         The Company hereby incorporates by reference the information  contained
under the  heading  "Election  of  Directors"  from its  definitive  Information
Statement to be delivered to  shareholders of the Company in connection with the
1998 Annual Meeting of Shareholders to be held May 13, 1998.

Item 11.    Executive Compensation

         The Company  incorporates by reference the information  contained under
the heading "Executive  Compensation" from its definitive  Information Statement
to be  delivered  to  shareholders  of the Company in  connection  with the 1998
Annual Meeting of Shareholders to be held May 13, 1998.

Item 12.     Security Ownership of Certain Beneficial Owners and Management

         The Company  incorporates by reference the information  contained under
the heading  "Security  Ownership of Certain  Beneficial  Owners and Management"
from its definitive Information Statement to be delivered to shareholders of the
Company in connection  with the 1998 Annual Meeting of  Shareholders  to be held
May 13, 1998.

Item 13.     Certain Relationships and Related Transactions

         The Company  incorporates by reference the information  contained under
the heading "Certain Relationships and Related Transactions" from its definitive
Information  Statement  to be  delivered  to  shareholders  of  the  Company  in
connection with the 1998 Annual Meeting of Shareholders to be held May 13, 1998.

                                     PART IV

Item 14.     Exhibits, Financial Statement Schedules and Reports on Form 8-K

(a)      The  following  documents are filed as part of this report on Form 10-K
         at pages 25 through 39, below.

         1.       Consolidated Financial Statements:

                  Knight Transportation, Inc. and Subsidiaries

                  Report of Arthur Andersen LLP, Independent Public Accountants
                  Consolidated Balance Sheets as of December 31, 1997 and 1996
                  Consolidated Statements of Income for the years ended December
                  31, 1997, 1996 and 1995
                                      -18-

                  Consolidated  Statements of Shareholders' Equity for the years
                  ended December 31, 1997, 1996 and 1995
                  Consolidated  Statements  of Cash  Flows for the  years  ended
                  December 31, 1997, 1996 and 1995
                  Notes to Consolidated Financial Statements

         2.       Consolidated  Financial  Statement  Schedules  required  to be
                  filed by Item 8 and Paragraph (d) of Item 14:

         Schedules  not  listed  have been  omitted  because  of the  absence of
conditions  under  which they are  required  or because  the  required  material
information is included in the Consolidated Financial Statements or Notes to the
Consolidated Financial Statements included herein.

         3.       Exhibits:

         The  Exhibits  required  by Item 601 of  Regulation  S-K are  listed at
paragraph (c), below, and at the Exhibit Index beginning at page 40.

(b)      Reports on Form 8-K:

         No reports on Form 8-K were filed during the last quarter of the period
covered by this report on Form 10-K.

(c)      Exhibits:

         The  following  exhibits are filed with this Form 10-K or  incorporated
herein by reference to the document set forth next to the exhibit listed below:


       Exhibit
       Number          Description
       ------          -----------

         3.1           Restated   Articles  of  Incorporation  of  the  Company.
                       (Incorporated   by   reference  to  Exhibit  3.1  to  the
                       Company's   Registration   Statement   on  Form  S-1  No.
                       33-83534.)
         3.2           Amended and Restated Bylaws of the Company  (Incorporated
                       by  reference to Exhibit 3.2 to the  Company's  report on
                       Form 10-K for the period ending December 31, 1996).
         4.1           Articles  4,  10  and  11 of  the  Restated  Articles  of
                       Incorporation of the Company.  (Incorporated by reference
                       to Exhibit 3.1 to this Report on Form 10-K.)
         4.2           Sections 2 and 5 of the  Amended and  Restated  Bylaws of
                       the Company. (Incorporated by reference to Exhibit 3.2 to
                       this Report on Form 10-K.)
        10.1           Purchase and Sale Agreement and Escrow  Instructions (All
                       Cash) dated as of March 1, 1994,  between  Randy  Knight,
                       the Company, and Lawyers Title of Arizona.  (Incorporated
                       by   reference   to   Exhibit   10.1  to  the   Company's
                       Registration Statement on Form S-1 No. 33-83534.)
                                      -19-

       10.1.1          Assignment  and  First  Amendment  to  Purchase  and Sale
                       Agreement  and  Escrow  Instructions.   (Incorporated  by
                       reference  to Exhibit  10.1.1 to  Amendment  No. 3 to the
                       Company's   Registration   Statement   on  Form  S-1  No.
                       33-83534.)
       10.1.2          Second  Amendment  to  Purchase  and Sale  Agreement  and
                       Escrow   Instructions.   (Incorporated  by  reference  to
                       Exhibit  10.1.2  to  Amendment  No.  3 to  the  Company's
                       Registration Statement on Form S-1 No. 33-83534.)
        10.2           Net Lease and Joint Use  Agreement  between  Randy Knight
                       and the Company dated as of March 1, 1994.  (Incorporated
                       by   reference   to   Exhibit   10.2  to  the   Company's
                       Registration Statement on Form S-1 No. 33-83534.)
       10.2.1*         Assignment and First Amendment to Net Lease and Joint Use
                       Payment  between  L. Randy  Knight,  Trustee of the R. K.
                       Trust  dated  April 1, 1993,  and Knight  Transportation,
                       Inc.  and  certain  other  parties  dated  March 11, 1994
                       (assigning the lessor's interest to the R. K. Trust).
       10.2.2*         Second  Amendment  to Net Lease  and Joint Use  Agreement
                       between L.  Randy  Knight,  as Trustee of the R.K.  Trust
                       dated  April 1,  1993 and  Knight  Transportation,  Inc.,
                       dated as of September 1, 1997.
        10.3           Form  of   Purchase   and  Sale   Agreement   and  Escrow
                       Instructions (All Cash) dated as of October 1994, between
                       the Company and Knight Deer  Valley,  L.L.C.,  an Arizona
                       limited liability company.  (Incorporated by reference to
                       Exhibit  10.4.1  to  Amendment  No.  3 to  the  Company's
                       Registration Statement on Form S-1 No. 33-83534.)
        10.4           Loan Agreement and Revolving  Promissory  Note each dated
                       March,  1996 between  First  Interstate  Bank of Arizona,
                       N.A. and Knight Transportation,  Inc. and Quad K Leasing,
                       Inc. (superseding prior credit facilities)  (Incorporated
                       by reference to Exhibit 10.4 to the  Company's  report on
                       Form 10-K for the period ending December 31, 1996).
       10.4.1*         Modification Agreement between Wells Fargo Bank, N.A., as
                       successor by merger to First  Interstate Bank of Arizona,
                       N.A., and the Company and Quad-K Leasing, Inc.
                       dated as of May 15, 1997.
        10.5           Amended and Restated  Knight  Transportation,  Inc. Stock
                       Option Plan, dated as of February 10, 1998. (Incorporated
                       by  reference  to Exhibit 1 to the  Company's  Notice and
                       Information  Statement  on Schedule  14(c) for the period
                       ending December 31, 1997.)
        10.6           Amended  Indemnification  Agreements between the Company,
                       Don  Bliss,  Clark  A.  Jenkins,  Gary J.  Knight,  Keith
                       Knight, Kevin P. Knight, Randy Knight, G.D. Madden, Minor
                       Perkins  and Keith  Turley,  and dated as of  February 5,
                       1997  (Incorporated  by  reference to Exhibit 10.6 to the
                       Company's  report  on Form  10-K  for the  period  ending
                       December 31, 1996).
        10.7           Master  Equipment  Lease Agreement dated as of January 1,
                       1996,  between  the  Company  and  Quad-K  Leasing,  Inc.
                       (Incorporated   by  reference  to  Exhibit  10.7  to  the
                       Company's  report  on  Form  10-K  for the  period  ended
                       December 31, 1995.)
                                      -20-

        10.8           Purchase  Agreement and Escrow  Instructions  dated as of
                       July 13, 1995, between the Company,  Swift Transportation
                       Co.,   Inc.   and  United   Title   Agency  of   Arizona.
                       (Incorporated   by  reference  to  Exhibit  10.8  to  the
                       Company's  report  on  Form  10-K  for the  period  ended
                       December 31, 1995.)
       10.8.1          First   Amendment  to  Purchase   Agreement   and  Escrow
                       Instructions.   (Incorporated  by  reference  to  Exhibit
                       10.8.1  to the  Company's  report  on Form  10-K  for the
                       period ended December 31, 1995.)
        10.9           Purchase  and Sale  Agreement  dated as of  February  13,
                       1996,  between the Company and RR-1 Limited  Partnership.
                       (Incorporated   by  reference  to  Exhibit  10.9  to  the
                       Company's  report  on  Form  10-K  for the  period  ended
                       December 31, 1995.)
        21.1           Subsidiaries of the Company.  (Incorporated  by reference
                       to Exhibit 21.1 to the Company's  report on Form 10-K for
                       the period ending December 31, 1995.)
         23*           Consent of Arthur Andersen LLP
         27*           Financial Data Schedule

- ------------------------------
*  Filed herewith.
                                      -21-

                                   SIGNATURES

         Pursuant to the  requirements  of Section 13 or 15(d) of the Securities
Exchange Act of 1934, Knight Transportation, Inc. has duly caused this report on
Form  10-K  to be  signed  on its  behalf  by the  undersigned,  thereunto  duly
authorized.

                                              KNIGHT TRANSPORTATION, INC.



                                              By     /s/ Kevin P. Knight
                                                ------------------------------
                                                 Kevin P. Knight,
                                                 Chief Executive Officer

Date:  March 30, 1998.


         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
this  report on Form 10-K has been  signed  below by the  following  persons  on
behalf of the Company and in the capacities and on the dates indicated.

             Signature and Title                                      Date
             -------------------                                      ----


         /s/ Randy Knight                                        March 30, 1998
- ----------------------------------------------
Randy Knight
Chairman of the Board, Director



         /s/ Kevin P. Knight                                     March 30, 1998
- ----------------------------------------------
Kevin P. Knight
Chief Executive Officer, Director



         /s/ Gary J. Knight                                      March 30, 1998
- ----------------------------------------------
Gary J. Knight
President, Director



                                                                 March   , 1998
- ----------------------------------------------
Keith T. Knight
Executive Vice President, Director
                                      -22-




         /s/ Clark A. Jenkins                                    March 30, 1998
- ----------------------------------------------
Clark A. Jenkins
Chief Financial Officer, Secretary, Director



         /s/ Keith L. Turley                                     March 30, 1998
- ----------------------------------------------
Keith L. Turley
Director



         /s/ Donald A. Bliss                                     March 30, 1998
- ----------------------------------------------
Donald A. Bliss
Director


         /s/ G.D. Madden 
- ----------------------------------------------                   March 30, 1998
G.D. Madden
Director
                                      -23-




                       THIS PAGE INTENTIONALLY LEFT BLANK


                                      -24-









                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES

                        CONSOLIDATED FINANCIAL STATEMENTS
                        AS OF DECEMBER 31, 1997 AND 1996
                       TOGETHER WITH REPORT OF INDEPENDENT
                               PUBLIC ACCOUNTANTS

                                      -25-

                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS




To the Board of Directors and Shareholders of
Knight Transportation, Inc.:


We  have  audited  the  accompanying   consolidated  balance  sheets  of  KNIGHT
TRANSPORTATION,  INC. (an Arizona  corporation) and subsidiaries  (collectively,
the  Company) as of December  31,  1997 and 1996,  and the related  consolidated
statements of income,  shareholders' equity and cash flows for each of the three
years in the period ended December 31, 1997. These financial  statements are the
responsibility of the Company's management.  Our responsibility is to express an
opinion on these financial statements based on our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards. Those standards require that we plan and perform the audits to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all material respects,  the financial position of the Company as of December 31,
1997 and 1996,  and the results of its operations and its cash flows for each of
the three years in the period  ended  December  31,  1997,  in  conformity  with
generally accepted accounting principles.

                                           /s/ ARTHUR ANDERSEN LLP
                                           -----------------------
                                           ARTHUR ANDERSEN LLP


Phoenix, Arizona,
 January 26, 1998.
                                      -26-

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES


                           CONSOLIDATED BALANCE SHEETS

                        AS OF DECEMBER 31, 1997 AND 1996



                                                                     1997            1996
                                                                 ------------    ------------
                                                                                    
                                            ASSETS
CURRENT ASSETS:
   Cash and cash equivalents                                     $    512,339    $  1,244,745
   Accounts receivable, net of allowance for doubtful accounts
     of approximately $457,600 and $318,000, respectively          11,934,364      10,414,133
   Inventories and supplies                                           402,076         328,825
   Prepaid expenses                                                   694,434         509,085
   Deferred tax assets (Note 2)                                     1,907,800       1,319,400
                                                                 ------------    ------------

                  Total current assets                             15,451,013      13,816,188
                                                                 ------------    ------------

PROPERTY AND EQUIPMENT:
   Land and improvements                                            4,322,837       4,297,837
   Buildings and improvements                                       1,855,092         970,963
   Furniture and fixtures                                           2,146,637       1,837,844
   Shop and service equipment                                       1,018,636         859,592
   Revenue equipment                                               75,695,123      55,172,272
   Leasehold improvements                                             432,467         575,015
                                                                 ------------    ------------

                                                                   85,470,792      63,713,523

   Less:  accumulated depreciation                                (20,025,293)    (14,186,781)
                                                                 ------------    ------------

PROPERTY AND EQUIPMENT, net                                        65,445,499      49,526,742
                                                                 ------------    ------------

OTHER ASSETS (Note 6)                                               1,793,284         775,526
                                                                 ------------    ------------

                                                                 $ 82,689,796    $ 64,118,456
                                                                 ============    ============

                             LIABILITIES AND SHAREHOLDERS' EQUITY

CURRENT LIABILITIES:
   Accounts payable                                              $  4,847,070    $  3,954,286
   Accrued liabilities (Note 8)                                     3,082,413       2,286,099
   Current portion of long-term debt (Note 3)                          14,171         394,191
   Line of credit (Note 3)                                          2,000,000            --
   Claims accrual (Note 5)                                          3,463,322       3,040,672
                                                                 ------------    ------------

                  Total current liabilities                        13,406,976       9,675,248

LONG-TERM DEBT, less current portion (Note 3)                            --            53,491

DEFERRED INCOME TAXES (Note 2)                                     12,485,085       8,426,558
                                                                 ------------    ------------

                                                                   25,892,061      18,155,297
                                                                 ------------    ------------

COMMITMENTS AND CONTINGENCIES (Notes 4 and 8)

SHAREHOLDERS' EQUITY (Notes 7 and 8):
   Preferred stock                                                       --              --
   Common stock                                                        99,496          99,045
   Additional paid-in capital                                      24,057,133      23,474,531
   Retained earnings                                               32,641,106      22,389,583
                                                                 ------------    ------------

                  Total shareholders' equity                       56,797,735      45,963,159
                                                                 ------------    ------------

                                                                 $ 82,689,796    $ 64,118,456
                                                                 ============    ============


    The accompanying notes are an integral part of these consolidated balance
                                    sheets.
                                      -27-

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES


                        CONSOLIDATED STATEMENTS OF INCOME

              FOR THE YEARS ENDED DECEMBER 31, 1997, 1996 AND 1995




                                                   1997            1996            1995
                                               ------------    ------------    ------------
                                                                               
OPERATING REVENUE                              $ 99,428,693    $ 77,503,786    $ 56,170,279
                                               ------------    ------------    ------------

OPERATING EXPENSES:
   Salaries, wages and benefits                  27,990,073      22,217,900      16,359,957
   Fuel                                          10,182,487       7,890,607       6,101,460
   Operations and maintenance                     5,584,178       4,017,698       3,727,240
   Insurance and claims                           2,524,823       2,820,086       2,097,361
   Operating taxes and licenses                   4,114,145       3,018,999       2,154,739
   Communications                                   597,728         509,411         286,469
   Depreciation and amortization                  9,560,569       7,520,905       5,416,390
   Purchased transportation                      19,038,834      14,378,518       7,831,506
   Miscellaneous operating expenses               2,355,504       1,973,131       1,593,711
                                               ------------    ------------    ------------

                                                 81,948,341      64,347,255      45,568,833
                                               ------------    ------------    ------------

                  Income from operations         17,480,352      13,156,531      10,601,446
                                               ------------    ------------    ------------

OTHER INCOME (EXPENSE):
   Interest income                                   49,747          51,730          36,620
   Interest expense                                 (67,576)       (398,204)       (232,371)
                                               ------------    ------------    ------------

                                                    (17,829)       (346,474)       (195,751)
                                               ------------    ------------    ------------

                  Income before income taxes     17,462,523      12,810,057      10,405,695

INCOME TAXES                                     (7,211,000)     (5,300,000)     (4,600,000)
                                               ------------    ------------    ------------

                  Net income                   $ 10,251,523    $  7,510,057    $  5,805,695
                                               ============    ============    ============

BASIC EARNINGS PER SHARE                       $       1.03    $        .79    $        .64
                                               ============    ============    ============

DILUTED EARNINGS PER SHARE                     $       1.01    $        .78    $        .64
                                               ============    ============    ============

WEIGHTED AVERAGE SHARES
   OUTSTANDING - BASIC                            9,917,164       9,465,312       9,100,700
                                               ============    ============    ============

WEIGHTED AVERAGE SHARES
   OUTSTANDING - DILUTED                         10,100,340       9,585,165       9,141,176
                                               ============    ============    ============


  The accompanying notes are an integral part of these consolidated financial
                                  statements.
                                      -28-

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES


                 CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY

              FOR THE YEARS ENDED DECEMBER 31, 1997, 1996 AND 1995




                                           Common Stock          Additional
                                     -------------------------     Paid-in       Retained
                                        Shares        Amount       Capital       Earnings       Total
                                     -----------   -----------   -----------   -----------   -----------

                                                                                      
BALANCE, December 31, 1994             9,100,000   $    91,000   $ 9,737,767   $ 9,073,831   $18,902,598

   Exercise of stock options               2,000            20        23,980          --          24,000

   Net income                               --            --            --       5,805,695     5,805,695
                                     -----------   -----------   -----------   -----------   -----------

BALANCE, December 31, 1995             9,102,000        91,020     9,761,747    14,879,526    24,732,293

   Exercise of stock options               2,500            25        29,975          --          30,000

   Issuance of 800,000 shares of
     common stock, net of offering
     costs of $1,109,191 (Note 7)        800,000         8,000    13,682,809          --      13,690,809

   Net income                               --            --            --       7,510,057     7,510,057
                                     -----------   -----------   -----------   -----------   -----------

BALANCE, December 31, 1996             9,904,500        99,045    23,474,531    22,389,583    45,963,159

   Exercise of stock options              44,719           447       572,556          --         573,003

   Issuance of 396 shares of
     common stock (Note 7)                   396             4        10,046          --          10,050

   Net income                               --            --            --      10,251,523    10,251,523
                                     -----------   -----------   -----------   -----------   -----------

BALANCE, December 31, 1997             9,949,615   $    99,496   $24,057,133   $32,641,106   $56,797,735
                                     ===========   ===========   ===========   ===========   ===========


  The accompanying notes are an integral part of these consolidated financial
                                  statements.
                                      -29-

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES


                      CONSOLIDATED STATEMENTS OF CASH FLOWS

              FOR THE YEARS ENDED DECEMBER 31, 1997, 1996 AND 1995




                                                                            1997            1996            1995
                                                                        ------------    ------------    ------------
                                                                                                        
CASH FLOWS FROM OPERATING ACTIVITIES:
   Net income                                                           $ 10,251,523    $  7,510,057    $  5,805,695
   Adjustments to reconcile net income to net cash provided
     by operating activities-
       Depreciation and amortization                                       9,560,569       7,520,905       5,416,390
       Non-cash compensation expense for issuance of common
         stock to certain members of board of directors                       10,050            --              --
       Provision for doubtful accounts                                       139,600          23,000         162,000
       Deferred income taxes, net                                          3,470,127       2,211,958       1,403,200
   Changes in assets and liabilities-
       Increase in receivables                                            (1,659,831)     (3,062,094)     (2,720,776)
       (Increase) decrease in inventories and supplies                       (73,251)         93,764        (115,673)
       (Increase) decrease in prepaid expenses                              (185,349)        428,219        (771,741)
       Increase in other assets                                             (195,811)       (652,693)       (370,499)
       Increase (decrease) in accounts payable                             1,069,469        (250,046)        479,426
       Increase in accrued liabilities and claims accrual                  1,218,964         459,965       1,364,536
                                                                        ------------    ------------    ------------

                  Net cash provided by operating activities               23,606,060      14,283,035      10,652,558
                                                                        ------------    ------------    ------------

CASH FLOWS FROM INVESTING ACTIVITIES:
   Purchases of property and equipment                                   (23,548,158)    (21,919,774)    (11,360,029)
                                                                        ------------    ------------    ------------

CASH FLOWS FROM FINANCING ACTIVITIES:
   Borrowing (payments) on line of credit, net                             2,000,000      (2,000,000)      2,000,000
   Borrowing of debt                                                            --           759,200            --
   Payments of debt                                                         (433,511)     (2,294,455)     (1,311,348)
   Payments of accounts payable - equipment                               (2,929,800)     (1,927,726)     (1,528,322)
   Proceeds from sale of common stock                                           --        13,690,809            --
   Proceeds from exercise of stock options                                   573,003          30,000          24,000
                                                                        ------------    ------------    ------------

                  Net cash provided by (used in) financing activities       (790,308)      8,257,828        (815,670)
                                                                        ------------    ------------    ------------

NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS                        (732,406)        621,089      (1,523,141)

CASH AND CASH EQUIVALENTS, beginning of year                               1,244,745         623,656       2,146,797
                                                                        ------------    ------------    ------------

CASH AND CASH EQUIVALENTS, end of year                                  $    512,339    $  1,244,745    $    623,656
                                                                        ============    ============    ============


SUPPLEMENTAL DISCLOSURES:
   Noncash investing and financing transactions:
     Equipment acquired by direct financing                             $       --      $       --      $    127,115
     Equipment acquired by accounts payable                                2,753,115       2,929,800       1,927,726
     Issuance of common stock to certain members of
       board of directors                                                     10,050            --              --

   Cash Flow Information:
     Income taxes paid                                                  $  3,945,579    $  2,459,144    $  3,368,373
     Interest paid                                                            69,161         408,138         228,681


  The accompanying notes are an integral part of these consolidated financial
                                  statements.
                                      -30-

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES


                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                DECEMBER 31, 1997



(1)   ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

         Nature of Business

Knight  Transportation,  Inc.  and  subsidiaries  (the  Company)  is a short  to
medium-haul,  truckload  carrier  of general  commodities.  The  operations  are
centered in Phoenix,  Arizona, where the Company has its corporate offices, fuel
island, truck terminal,  and dispatching and maintenance services.  During 1996,
the Company expanded its operations by opening new facilities in Katy, Texas and
Indianapolis,  Indiana. The Company operates predominantly in one industry, road
transportation,   which  is  subject  to   regulation   by  the   Department  of
Transportation and various state regulatory authorities.

The Company continues to develop its owner-operator program. Owner-operators are
independent  contractors  who provide  their own  tractors.  The  Company  views
owner-operators  as  an  alternative  method  of  obtaining  additional  revenue
equipment.  The Company had 192 and 158 owner-operators at December 31, 1997 and
1996,  respectively.  This represents approximately 25% and 27% of the Company's
tractor fleet at December 31, 1997 and 1996, respectively.

         Significant Accounting Policies

Principles of Consolidation - The accompanying consolidated financial statements
include the parent  company  Knight  Transportation,  Inc., and its wholly owned
subsidiaries,  Quad-K Leasing, Inc., KTTE Holdings,  Inc., QKTE Holdings,  Inc.,
Knight Management Services, Inc. and Knight Dedicated Services Ltd. Partnership.
All  material  intercompany  items  and  transactions  have been  eliminated  in
consolidation.

Use of Estimates - The  preparation of financial  statements in conformity  with
generally accepted  accounting  principles requires management to make estimates
and assumptions  that affect the reported  amounts of assets and liabilities and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements  and the  reported  amounts  of  revenues  and  expenses  during  the
reporting period. Actual results could differ from those estimates.

Cash Equivalents - The Company considers all highly liquid instruments purchased
with original maturities of three months or less to be cash equivalents.

Inventories and Supplies - Inventories  and supplies  consist of tires and spare
parts  which  are  stated at the lower of cost,  using the  first-in,  first-out
(FIFO) method, or net realizable value.
                                      -31-

Property and Equipment - Property and equipment are stated at cost. Depreciation
on property and  equipment is calculated  by the  straight-line  method over the
following estimated useful lives:

                                                             Years
                                                             -----

           Land improvements                                    5
           Buildings and improvements                       20-30
           Furniture and fixtures                               5
           Shop and service equipment                        5-10
           Revenue equipment                                  5-7
           Leasehold improvements                              10

The Company expenses  repairs and maintenance.  For the years ended December 31,
1997,  1996 and 1995,  repairs and  maintenance  expense  totaled  approximately
$2,442,000,   $1,883,000  and  $1,375,000,   respectively  and  is  included  in
operations and maintenance expense in the accompanying  consolidated  statements
of income.

Revenue  equipment is  depreciated  to a salvage  value of 15% for all tractors.
Trailers  are  depreciated  to  salvage  values  of  10%  to  40%.  The  Company
periodically  reviews its estimates  related to useful lives and salvage  values
for revenue equipment.

Tires - Tires on revenue  equipment  purchased are  capitalized as a part of the
equipment cost and depreciated over the life of the vehicle.  Replacement  tires
and recapping costs are expensed when placed in service.

Revenue  Recognition - The Company's  typical customer delivery is completed one
day after pickup. The Company recognizes  operating revenues when the freight is
picked up for  delivery and accrues the  estimated  direct costs to complete the
delivery.  This method of revenue  recognition is not materially  different from
recognizing  revenue  based on completion of delivery as the hauls are primarily
short-term.

Income Taxes - The Company uses the asset and liability method of accounting for
income  taxes.  Under the asset and  liability  method of Statement of Financial
Accounting  Standards  No. 109 (SFAS No.  109),  Accounting  for  Income  Taxes,
deferred  tax  assets  and   liabilities  are  recognized  for  the  future  tax
consequences   attributable  to  differences  between  the  financial  statement
carrying  amount of existing  assets and  liabilities  and their  respective tax
bases.  Deferred tax assets and liabilities are measured using enacted tax rates
expected  to apply to  taxable  income  in the  years in which  those  temporary
differences  are expected to be  recovered  or settled.  Under SFAS No. 109, the
effect  on  deferred  tax  assets  and  liabilities  of a change in tax rates is
recognized in the period that includes the enactment date.
                                      -32-

Concentration of Credit Risk - Financial  instruments  that potentially  subject
the  Company  to credit  risk  consist  principally  of trade  receivables.  The
Company's  three largest  customers  for each of the years 1997,  1996 and 1995,
represent  17%,  17% and 11% of  operating  revenues,  respectively.  The single
largest  customer's  revenues  represent 8%, 9% and 4% of operating revenues for
the years 1997, 1996 and 1995, respectively.

Earnings Per Share - In February 1997, the Financial  Accounting Standards Board
(FASB)  issued  Statement of Financial  Accounting  Standards  No. 128 (SFAS No.
128),  Earnings Per Share,  which supersedes  Accounting  Principles Board (APB)
Opinion No. 15, the existing authoritative  guidance.  SFAS No. 128 modifies the
calculation  of primary and fully diluted  earnings per share (EPS) and replaces
them with  basic and  diluted  EPS.  SFAS No.  128 is  effective  for  financial
statements  for both interim and annual  periods  presented  after  December 15,
1997, and as a result, all prior period EPS data presented has been restated.

A  reconciliation  of the  numerators  (net income) and  denominators  (weighted
average number of shares  outstanding) of the basic and diluted EPS computations
for the years December 31, 1997, 1996 and 1995, is as follows:



                                 1997                                1996                                1995
                 -----------------------------------  -----------------------------------  -----------------------------------
                 Net Income     Shares     Per Share  Net Income    Shares      Per Share  Net Income   Shares       Per Share
                 (numerator) (denominator)   Amount   (numerator) (denominator)   Amount   (numerator) (denominator)   Amount
                 -----------  -----------  ---------  -----------  -----------  ---------  -----------  -----------  ---------
                                                                                                
Basic EPS        $10,251,523    9,917,164  $    1.03  $ 7,510,057    9,465,312  $     .79  $ 5,805,695    9,100,700  $     .64
                                           =========                            =========                            =========

Effect of stock
options                 --        183,176                    --        119,853                    --         40,476
                 -----------  -----------             -----------  -----------             -----------  -----------

Diluted EPS      $10,251,523   10,100,340  $    1.01  $ 7,510,057    9,585,165  $     .78  $ 5,805,695    9,141,176  $     .64
                 ===========  ===========  =========  ===========  ===========  =========  ===========  ===========  =========


Fair Value of Financial  Instruments - Cash,  accounts  receivable  and payable,
accruals,  long-term debt and line of credit  borrowings  approximate fair value
because of their short maturities.

Statements of Financial Accounting Standards Not Yet Adopted - In June 1997, the
FASB issued Statement of Financial  Accounting Standards No. 130 (SFAS No. 130),
Reporting Comprehensive Income. SFAS No. 130 establishes standards for reporting
and display of  comprehensive  income and its components  (revenues,  gains, and
losses)  in a full set of  general-purpose  financial  statements.  SFAS No. 130
requires  that all items that are  required to be  recognized  under  accounting
standards  as  components  of  comprehensive  income be  reported in a financial
statement  that is  displayed  with  the  same  prominence  as  other  financial
statements.  This  statement  is  effective  for fiscal  years  beginning  after
December 15, 1997.  Reclassification of financial statements for earlier periods
provided for  comparative  purposes is required.  In management's  opinion,  the
adoption  of SFAS  No.  130 will not have a  material  impact  on the  Company's
financial position or results of operations.

In June 1997, the FASB issued  Statement of Financial  Accounting  Standards No.
131,  (SFAS No. 131),  Disclosures  About  Segments of an Enterprise and Related
Information,  which supersedes  Statement of Financial  Accounting Standards No.
14,  Financial  Reporting  for Segments of a Business  Enterprise.  SFAS No. 131
establishes  standards  for the way  that  public  business  enterprises  report
information about operating segments in annual financial statements and
                                      -33-

requires that those  enterprises  report  selected  information  about operating
segments  in  interim  financial   reports  issued  to  shareholders.   It  also
establishes  standards  for related  disclosures  about  products and  services,
geographic areas, and major customers. This statement is effective for financial
statements for periods beginning after December 15, 1997. In the initial year of
application,  comparative  information  for earlier years is to be restated.  In
management's  opinion,  the  adoption  of SFAS No.  131 will not have a material
impact on the Company's reported financial position or results of operations.

(2)   INCOME TAXES:

Income tax expense consists of the following:

                                              1997         1996         1995
                                           ----------   ----------   ----------
         Current income taxes:
           Federal                         $2,904,400   $2,429,100   $2,500,500
           State                              836,473      658,900      696,300
                                           ----------   ----------   ----------

                                            3,740,873    3,088,000    3,196,800
                                           ----------   ----------   ----------
         Deferred income taxes:
           Federal                          2,840,200    1,805,300    1,173,300
           State                              629,927      406,700      229,900
                                           ----------   ----------   ----------

                                            3,470,127    2,212,000    1,403,200
                                           ----------   ----------   ----------

                Total income tax expense   $7,211,000   $5,300,000   $4,600,000
                                           ==========   ==========   ==========

The  effective  income  tax rate is  different  than the amount  which  would be
computed  by  applying  statutory  corporate  income tax rates to income  before
income taxes. The differences are summarized as follows:

                                              1997         1996         1995
                                           ----------   ----------   ----------

      Tax at the statutory rate (34%)      $5,937,300   $4,355,400   $3,537,900
      State income taxes, net of federal
        benefit                               967,800      703,300      611,300
      Other                                   305,900      241,300      450,800
                                           ----------   ----------   ----------

                                           $7,211,000   $5,300,000   $4,600,000
                                           ==========   ==========   ==========
                                      -34-

The net effects of temporary  differences that give rise to significant portions
of the deferred tax assets and deferred tax liabilities at December 31, 1997 and
1996, are as follows:



                                                                 1997          1996
                                                             -----------   -----------
                                                                             
       Short-term deferred tax assets:
         Claims accrual                                      $ 1,383,400   $ 1,216,300
         Other                                                   524,400       103,100
                                                             -----------   -----------

                  Total short-term deferred tax assets       $ 1,907,800   $ 1,319,400
                                                             ===========   ===========

       Long-term deferred tax liabilities:
         Property and equipment depreciation                 $11,904,300   $ 8,218,200
         Prepaid expenses deducted for tax purposes              580,785       208,358
                                                             -----------   -----------

                  Total long-term deferred tax liabilities   $12,485,085   $ 8,426,558
                                                             ===========   ===========


(3)   LINE OF CREDIT AND LONG-TERM DEBT:

Long-term debt consists of the following at December 31:


                                                                 1997          1996
                                                             -----------   -----------
                                                                           
     Notes payable to a commercial lending institution
     with varying monthly payments from approximately
     $4,000 to $6,000 through 1998; collateralized by
     tractors and trailers, fixed interest rates from 6.4%
     to 7.0%                                                 $    14,171   $   385,549 
                                                                                       
     Note payable to a financial institution; repaid                                   
     during 1997                                                    --          62,133 
                                                             -----------   ----------- 
                                                                  14,171       447,682 
     Less- Current portion                                       (14,171)     (394,191)
                                                             -----------   ----------- 
                                                                                       
                                                             $      --     $    53,491 
                                                             ===========   =========== 
                                              
                                                                         
The  Company  has a  $10,000,000  revolving  line of  credit  (see  Note 5) with
principal due at maturity, May 1998, and interest payable monthly at two options
(prime or LIBOR plus  .625%).  In  management's  opinion,  the Company will have
sufficient liquidity to pay off, or will be able to renew, its line of credit at
maturity.  Borrowings  under the line of credit are  limited to 80% of  eligible
accounts  receivable,  as defined,  and 50% of net fixed assets,  as defined and
amounted  to  $2,000,000  at  December  31,  1997.  There  were  no  outstanding
borrowings under the line of credit at December 31, 1996.

Under the terms of the line of credit,  the  Company  is  required  to  maintain
certain financial ratios.  These ratios include;  total liabilities to net worth
ratio,  current  ratio,  and certain  debt service  ratios.  The Company is also
required to maintain  certain other covenants  relating to corporate  structure,
ownership and management.

The weighted  average interest rate on these notes payable is 6.44% and 6.76% at
December 31, 1997 and 1996, respectively.
                                      -35-

(4)   COMMITMENTS AND CONTINGENCIES:

         Purchase Commitments

As of December 31, 1997,  the Company had purchase  commitments  for  additional
tractors and trailers with an estimated  purchase price of  approximately  $28.0
million.

Although the Company expects to take delivery of this revenue equipment,  delays
in the availability of equipment could occur due to factors beyond the Company's
control. Any future delay or interruption in the availability of equipment could
have a material adverse effect on the Company.

         Disability Plan

The Company has a  disability  plan for certain of its key  employees.  The plan
provides  disability  benefits  of  $75,000  annually  for  five  years if a key
employee terminates  employment by reason of disability.  The plan is subject to
termination at any time by the Board of Directors.

         Other

The  Company is  involved  in certain  legal  proceedings  arising in the normal
course of  business.  In the  opinion of  management,  the  Company's  potential
exposure under the pending legal  proceedings is adequately  provided for in the
accompanying consolidated financial statements.

(5)   CLAIMS ACCRUAL:

The Company acts as a self-insurer  for bodily injury and property damage claims
up to  $100,000  per  occurrence.  The  Company  is  self-insured  for  workers'
compensation  claims  up  to  $250,000  per  occurrence.  The  Company  is  also
self-insured  for loss of revenue  equipment  up to $12,500 per  occurrence  and
cargo  liability  up to $12,500  per  occurrence.  Liability  in excess of these
amounts is covered by a third party underwriter up to $20 million.

The claims accrual  represents  accruals for the estimated  uninsured portion of
pending claims  including  adverse  development of known claims and incurred but
not reported claims.  These estimates are based on historical  information along
with certain assumptions about future events.  Changes in assumptions as well as
changes in actual  experience  could cause these estimates to change in the near
term.  Liability in excess of the self  insured  amounts are  collateralized  by
letters  of credit  totaling  $1,242,000.  These  letters  of credit  reduce the
available borrowings under the Company's line of credit (see Note 3).

(6)   RELATED PARTY TRANSACTIONS:

The Company leases  approximately  eight acres and facilities from a shareholder
and officer, (the Shareholder) under a five year lease, with an option to extend
for two additional  five-year terms. The lease terms include base rent of $4,828
per month for the initial  three years of the lease,  and increases of 3% on the
third anniversary of the commencement date, the first day of
                                      -36-

each option term,  and the third  anniversary of the  commencement  date of each
option term.  In  September  1997,  the lease was amended to include  additional
acreage and the monthly  payment  was  increased  to  approximately  $5,923.  In
addition to base rent,  the lease  requires  the Company to pay its share of all
expenses,  utilities,  taxes  and  other  charges.  Rent  expense  paid  to  the
Shareholder was approximately $60,200, $59,000 and $54,800 during 1997, 1996 and
1995, respectively.

The  Company  paid  approximately  $80,000  each  year  for  certain  of its key
employees'  life  insurance  premiums  during  1997,  1996 and  1995.  The total
premiums  paid are  included in other  assets in the  accompanying  consolidated
balance sheets.  The life insurance  policies provide for cash  distributions to
the  beneficiaries  of the  policyholders  upon death of the key  employee.  The
Company is  entitled  to receive  the total  premiums  paid on the  policies  at
distribution prior to any beneficiary distributions.

The Company  provided  maintenance  and  shipping  for Total  Warehousing,  Inc.
(Total),  a company  owned by a  shareholder  of the Company,  of  approximately
$16,000  and  $62,000  for  the  years  ended   December   31,  1996  and  1995,
respectively.  No services were provided  during 1997.  Total  provided  general
warehousing  services  to the  Company in the amount of  approximately  $11,000,
$14,000  and  $60,000  for the years ended  December  31,  1997,  1996 and 1995,
respectively.

(7)   SHAREHOLDERS' EQUITY:

The Company's  authorized  capital stock consists of 100,000,000  shares of $.01
par value common  stock;  9,949,615  and  9,904,500  shares of common stock were
issued and outstanding at December 31, 1997 and 1996, respectively. In addition,
the Company has authorized  50,000,000 shares of $.01 par value preferred stock,
none of which was outstanding at December 31, 1997 and 1996.

In July 1996,  the Company  issued  800,000 shares of common stock at $18.50 per
share (the Offering). The Offering consisted of 1,600,000 shares of common stock
comprised  of 800,000  newly-issued  Company  shares  and  800,000  shares  from
existing shareholders.

During 1997,  the Company  determined  that all Board of Director  members would
receive their  director  fees by the issuance of common stock.  The Company will
issue  $2,500 of common  stock in  equivalent  shares to each board  member when
these fees are paid.  During 1997, the Company issued 396 shares of common stock
to certain directors.

(8)   EMPLOYEE BENEFIT PLANS:

         1994 Stock Option Plan

The Company  established  the 1994 Stock  Option  Plan (1994 Plan) with  650,000
shares of common  stock  reserved for  issuance  thereunder.  The 1994 Plan will
terminate  on  August  31,  2004.  The  Compensation  Committee  of the Board of
Directors  administers  the 1994 Plan and has the  discretion  to determine  the
employees, officers and independent directors who receive
                                      -37-

awards, the type of awards to be granted (incentive stock options,  nonqualified
stock options and  restricted  stock grants) and the term,  vesting and exercise
price.  Incentive  stock  options are  designed  to comply  with the  applicable
provisions  of  the  Internal  Revenue  Code  (the  Code)  and  are  subject  to
restrictions contained in the Code, including a requirement that exercise prices
are equal to at least 100% of the fair market value of the common  shares on the
grant date and a ten-year restriction on the option term.

Independent  directors are not  permitted to receive  incentive  stock  options.
Non-qualified stock options may be granted to directors,  including  independent
directors,  officers, and employees and provide for the right to purchase common
stock at a  specified  price,  which may not be less than 85% of the fair market
value on the date of grant, and usually become exercisable in installments after
the grant date.  Non-qualified  stock options may be granted for any  reasonable
term. The 1994 Plan provides that each independent  director may receive, on the
date of  appointment to the Board of Directors,  non-qualified  stock options to
purchase not less than 2,500 nor more than 5,000 shares of common  stock,  at an
exercise price equal to the fair market value of the common stock on the date of
the grant.

As permitted under Statement of Financial Accounting Standards No. 123 (SFAS No.
123),  Accounting  for  Stock-Based  Compensation,  the  Company  has elected to
account for stock  transactions with employees pursuant to the provisions of APB
No. 25, Accounting for Stock Issued to Employees.  Had compensation cost for the
1994 Plan been recorded  consistent  with SFAS No. 123, the Company's net income
and EPS amounts  would have been reduced to the  following pro forma amounts for
the years ended December 31:



                                          1997             1996            1995
                                     --------------   --------------  --------------
                                                                        
       Net income:
         As reported                 $   10,251,523   $    7,510,057  $    5,805,695
         Pro forma                       10,052,945        7,338,132       5,793,757
       Earnings per share:
         As reported - Diluted EPS   $         1.01   $          .78  $          .64
         Pro forma - Diluted EPS               1.00              .77             .63


The fair value of each option  grant is estimated on the date of grant using the
Black-Scholes   option  pricing  model  with  the  following   weighted  average
assumptions  used for grants in 1995 and 1996; risk free interest rate of 6.73%,
expected life of six years,  expected  volatility of 36%, expected dividend rate
of  zero,  and  expected  forfeitures  of 0%.  The  following  weighted  average
assumptions  were used for  grants in 1997;  risk free  interest  rate of 5.77%,
expected life of six years,  expected  volatility of 42%, expected dividend rate
of zero, and expected forfeitures of 15.68%.
                                      -38-

Because SFAS No. 123 has not been applied to options granted prior to January 1,
1995, the pro forma  compensation cost disclosed above may not be representative
of that had such options been considered.



                                                     1997                   1996                     1995
                                            ---------------------  ---------------------    ---------------------
                                                         Weighted               Weighted                 Weighted
                                                          Average                Average                  Average
                                                         Exercise               Exercise                 Exercise
                                              Options      Price     Options      Price       Options      Price
                                              -------    --------    -------    --------      -------    --------
                                                                                            
         Outstanding at beginning of year     360,000   $   12.76    262,250    $  12.06      251,250    $  12.01
         Granted                              253,550       21.57    139,250       13.98       25,000       12.52
         Exercised                            (45,719)      12.80     (2,500)      12.00       (2,000)      12.00
         Forfeited                            (40,234)      14.14    (39,000)      12.48      (12,000)      12.00
                                            ---------   ---------  ---------    --------    ---------    --------
         Outstanding at end of year           527,597                360,000                  262,250
                                            =========              =========                =========
         Exercisable at end of year            47,889   $   12.09      7,500    $  12.57        5,000    $  12.27
                                            =========   =========  =========    ========    =========    ========
         Weighted average fair value of
           options granted                  $   10.62              $    6.65                $    5.96
                                            =========              =========                =========


Options  outstanding at December 31, 1997,  have exercise  prices between $12.00
and $23.25.  Options  outstanding with exercise prices of $12.00 to $18.00,  and
$18.00 to $23.25 have weighted average  remaining  contractual lives of 6.23 and
8.94 years, respectively.

         401(k) Profit Sharing Plan

The Company has a 401(k)  profit  sharing plan (the Plan) for all  employees who
are 19 years of age or older and have  completed one year of service.  The Plan,
as amended in 1995, provides for a mandatory matching  contribution equal to 50%
of the amount of the employee's salary deduction not to exceed $625 annually per
employee. The Plan also provides for a discretionary  matching contribution.  In
1997,  1996 and 1995,  there  were no  discretionary  contributions.  Employees'
rights to  employer  contributions  vest  after  five  years  from their date of
employment. The Company's matching contribution, included in accrued liabilities
in the accompanying  consolidated  balance sheets,  was  approximately  $93,000,
$69,000 and $60,000 for 1997, 1996 and 1995, respectively.
                                      -39-






                                   EXHIBITS TO

                           KNIGHT TRANSPORTATION, INC.

                                    FORM 10-K

                            FOR THE FISCAL YEAR ENDED

                                DECEMBER 31, 1997

                              KNIGHT EXHIBIT INDEX
                              --------------------



       Exhibit
       Number          Description
       ------          -----------

         3.1           Restated   Articles  of  Incorporation  of  the  Company.
                       (Incorporated   by   reference  to  Exhibit  3.1  to  the
                       Company's   Registration   Statement   on  Form  S-1  No.
                       33-83534.)
         3.2           Amended and Restated Bylaws of the Company  (Incorporated
                       by  reference to Exhibit 3.2 to the  Company's  report on
                       Form 10-K for the period ending December 31, 1996).
         4.1           Articles  4,  10  and  11 of  the  Restated  Articles  of
                       Incorporation of the Company.  (Incorporated by reference
                       to Exhibit 3.1 to this Report on Form 10-K.)
         4.2           Sections 2 and 5 of the  Amended and  Restated  Bylaws of
                       the Company. (Incorporated by reference to Exhibit 3.2 to
                       this Report on Form 10-K.)
        10.1           Purchase and Sale Agreement and Escrow  Instructions (All
                       Cash) dated as of March 1, 1994,  between  Randy  Knight,
                       the Company, and Lawyers Title of Arizona.  (Incorporated
                       by   reference   to   Exhibit   10.1  to  the   Company's
                       Registration Statement on Form S-1 No. 33-83534.)
       10.1.1          Assignment  and  First  Amendment  to  Purchase  and Sale
                       Agreement  and  Escrow  Instructions.   (Incorporated  by
                       reference  to Exhibit  10.1.1 to  Amendment  No. 3 to the
                       Company's   Registration   Statement   on  Form  S-1  No.
                       33-83534.)
       10.1.2          Second  Amendment  to  Purchase  and Sale  Agreement  and
                       Escrow   Instructions.   (Incorporated  by  reference  to
                       Exhibit  10.1.2  to  Amendment  No.  3 to  the  Company's
                       Registration Statement on Form S-1 No. 33-83534.)
        10.2           Net Lease and Joint Use  Agreement  between  Randy Knight
                       and the Company dated as of March 1, 1994.  (Incorporated
                       by   reference   to   Exhibit   10.2  to  the   Company's
                       Registration Statement on Form S-1 No. 33-83534.)
       10.2.1*         Assignment and First Amendment to Net Lease and Joint Use
                       Payment  between  L. Randy  Knight,  Trustee of the R. K.
                       Trust  dated  April 1, 1993,  and Knight  Transportation,
                       Inc.  and  certain  other  parties  dated  March 11, 1994
                       (assigning the lessor's interest to the R. K. Trust).
       10.2.2*         Second  Amendment  to Net Lease  and Joint Use  Agreement
                       between L.  Randy  Knight,  as Trustee of the R.K.  Trust
                       dated April 1, 1993 and Knight Transportation, Inc. dated
                       as of September 1, 1997.
        10.3           Form  of   Purchase   and  Sale   Agreement   and  Escrow
                       Instructions (All Cash) dated as of October 1994, between
                       the Company and Knight Deer  Valley,  L.L.C.,  an Arizona
                       limited liability company.  (Incorporated by reference to
                       Exhibit  10.4.1  to  Amendment  No.  3 to  the  Company's
                       Registration Statement on Form S-1 No. 33-83534.)
                                       -2-

        10.4           Loan Agreement and Revolving  Promissory  Note each dated
                       March,  1996 between  First  Interstate  Bank of Arizona,
                       N.A. and Knight Transportation,  Inc. and Quad K Leasing,
                       Inc. (superseding prior credit facilities)  (Incorporated
                       by reference to Exhibit 10.4 to the  Company's  report on
                       Form 10-K for the period ending December 31, 1996).
       10.4.1*         Modification Agreement between Wells Fargo Bank, N.A., as
                       successor by merger to First  Interstate Bank of Arizona,
                       N.A., and the Company and Quad-K Leasing, Inc.
                       dated as of May 15, 1997.
        10.5           Amended and Restated  Knight  Transportation,  Inc. Stock
                       Option Plan, dated as of February 10, 1998. (Incorporated
                       by  reference to  Exhibit 1 to the  Company's  Notice and
                       Information  Statement on  Schedule 14(c) for the  period
                       ending December 31, 1997.)
        10.6           Amended  Indemnification  Agreements between the Company,
                       Don  Bliss,  Clark  A.  Jenkins,  Gary J.  Knight,  Keith
                       Knight, Kevin P. Knight, Randy Knight, G.D. Madden, Minor
                       Perkins  and Keith  Turley,  and dated as of  February 5,
                       1997  (Incorporated  by  reference to Exhibit 10.6 to the
                       Company's  report  on Form  10-K  for the  period  ending
                       December 31, 1996).
        10.7           Master  Equipment  Lease Agreement dated as of January 1,
                       1996,  between  the  Company  and  Quad-K  Leasing,  Inc.
                       (Incorporated   by  reference  to  Exhibit  10.7  to  the
                       Company's  report  on  Form  10-K  for the  period  ended
                       December 31, 1995.)
        10.8           Purchase  Agreement and Escrow  Instructions  dated as of
                       July 13, 1995, between the Company,  Swift Transportation
                       Co.,   Inc.   and  United   Title   Agency  of   Arizona.
                       (Incorporated   by  reference  to  Exhibit  10.8  to  the
                       Company's  report  on  Form  10-K  for the  period  ended
                       December 31, 1995.)
       10.8.1          First   Amendment  to  Purchase   Agreement   and  Escrow
                       Instructions.   (Incorporated  by  reference  to  Exhibit
                       10.8.1  to the  Company's  report  on Form  10-K  for the
                       period ended December 31, 1995.)
        10.9           Purchase  and Sale  Agreement  dated as of  February  13,
                       1996,  between the Company and RR-1 Limited  Partnership.
                       (Incorporated   by  reference  to  Exhibit  10.9  to  the
                       Company's  report  on  Form  10-K  for the  period  ended
                       December 31, 1995.)
        21.1           Subsidiaries of the Company.  (Incorporated  by reference
                       to Exhibit 21.1 to the Company's  report on Form 10-K for
                       the period ending December 31, 1995.)
         23*           Consent of Arthur Andersen LLP
         27*           Financial Data Schedule

- ------------------------------
*  Filed herewith.
                                       -3-