UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 10-Q
(Mark One)
[X]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934.

For the Quarterly Period Ended March 31, 2003

                                       or

[ ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934.

For the transition period from         to

Commission File Number: 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
                                PHOENIX, ARIZONA
                                      85043
                    (Address of Principal Executive Offices)
                                   (Zip Code)


Registrant's telephone number, including area code: 602-269-2000

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. [X] Yes [ ] No

Indicate  by check mark  whether  the  registrant  is an  accelerated  filer (as
defined in Rule 12b-2 of the Exchange Act). [X] Yes [ ] No

The number of shares  outstanding of registrant's  Common Stock, par value $0.01
per share, as of April 23, 2003 was 37,330,294 shares.

                           KNIGHT TRANSPORTATION, INC.

                                      INDEX



PART I - FINANCIAL INFORMATION                                       PAGE NUMBER

ITEM 1. FINANCIAL STATEMENTS

        Condensed Consolidated Balance Sheets as of March 31, 2003
          and December 31, 2002                                                1

        Condensed Consolidated Statements of Income for the three
          months ended March 31, 2003 and March 31, 2002                       3

        Condensed Consolidated Statements of Cash Flows for the
          three months ended March 31, 2003 and March 31, 2002                 4

        Notes to Condensed Consolidated Financial Statements                   6

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
        RESULTS OF OPERATIONS                                                 10

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK            17

ITEM 4. CONTROLS AND PROCEDURES                                               18

PART II - OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS                                                     18

ITEM 2. CHANGES IN SECURITIES AND USE OF PROCEEDS                             18

ITEM 3. DEFAULTS UPON SENIOR SECURITIES                                       18

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS                   18

ITEM 5. OTHER INFORMATION                                                     19

ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K                                      19

SIGNATURES                                                                    21

CERTIFICATIONS                                                                22

PART I  -  FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                   AS OF MARCH 31, 2003 AND DECEMBER 31, 2002
                                 (IN THOUSANDS)

                                                     March 31,     December 31,
                                                       2003            2002
                                                     ---------      ---------
                                                    (unaudited)
ASSETS

CURRENT ASSETS:

   Cash and cash equivalents                         $  33,584      $  36,198
   Accounts receivable, net                             39,798         40,356
   Notes receivable, net                                   952            956
   Inventories and supplies                              1,500          1,345
   Prepaid expenses                                     12,167          9,653
   Deferred tax asset                                    3,071          3,428
                                                     ---------      ---------

         Total current assets                           91,072         91,936
                                                     ---------      ---------
PROPERTY AND EQUIPMENT:
   Land and improvements                                14,626         14,158
   Buildings and improvements                           12,912         12,898
   Furniture and fixtures                                6,195          6,134
   Shop and service equipment                            2,065          1,975
   Revenue equipment                                   231,711        211,184
   Leasehold improvements                                1,127          1,049
                                                     ---------      ---------

                                                       268,636        247,398
   Less: Accumulated depreciation
           and amortization                            (74,964)       (70,505)
                                                     ---------      ---------

PROPERTY AND EQUIPMENT, net                            193,672        176,893
                                                     ---------      ---------
NOTES RECEIVABLE - long-term                             1,206          1,487
                                                     ---------      ---------
OTHER ASSETS                                            13,690         13,524
                                                     ---------      ---------

                                                     $ 299,640      $ 283,840
                                                     =========      =========

         The accompanying notes are an integral part of these unaudited
                  condensed consolidated financial statements.

                                        1

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES
                CONDENSED CONSOLIDATED BALANCE SHEETS (CONTINUED)
                   AS OF MARCH 31, 2003 AND DECEMBER 31, 2002
                        (IN THOUSANDS, EXCEPT PAR VALUES)

                                                     March 31,     December 31,
                                                       2003            2002
                                                     ---------      ---------
                                                    (unaudited)
LIABILITIES AND SHAREHOLDERS' EQUITY

CURRENT LIABILITIES:
  Accounts payable                                   $  11,120      $   7,749
  Accrued payroll                                        2,622          3,571
  Accrued liabilities                                    6,665          3,227
  Current portion of long-term debt                      1,322          2,715
  Claims accrual                                        11,626         10,419
                                                     ---------      ---------

    Total current liabilities                           33,355         27,681

LINE OF CREDIT                                          12,200         12,200
DEFERRED INCOME TAXES                                   46,088         44,302
                                                     ---------      ---------

    Total liabilities                                   91,643         84,183
                                                     ---------      ---------

COMMITMENTS AND CONTINGENCIES

SHAREHOLDERS' EQUITY:
  Preferred stock, $0.01 par value;
    authorized 50,000 shares;
    none issued and outstanding                             --             --
  Common stock, $0.01 par value; authorized
    100,000 shares; 37,245 and 37,145 issued
    and outstanding at March 31, 2003 and
    December 31, 2002, respectively                        373            371
  Additional paid-in capital                            74,698         73,521
  Retained earnings                                    133,225        126,148
  Accumulated other comprehensive loss                    (299)          (383)
                                                     ---------      ---------

    Total shareholders' equity                         207,997        199,657
                                                     ---------      ---------

                                                     $ 299,640      $ 283,840
                                                     =========      =========

         The accompanying notes are an integral part of these unaudited
                  condensed consolidated financial statements.

                                       2

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES
             CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)
                      (IN THOUSANDS, EXCEPT PER SHARE DATA)

                                                            Three Months Ended
                                                                March 31,
                                                           --------------------
                                                             2003        2002
                                                           --------    --------
REVENUE:
  Revenue, before fuel surcharge                           $ 73,551    $ 61,890
  Fuel surcharge                                              3,658         461
                                                           --------    --------

    Total revenue                                            77,209      62,351
                                                           --------    --------

OPERATING EXPENSES:
  Salaries, wages and benefits                               23,791      21,263
  Fuel                                                       14,228       8,980
  Operations and maintenance                                  4,688       3,402
  Insurance and claims                                        3,827       2,657
  Operating taxes and licenses                                2,126       1,871
  Communications                                                720         616
  Depreciation and amortization                               6,786       5,355
  Lease expense - revenue Equipment                           1,975       2,296
  Purchased transportation                                    5,512       4,879
  Miscellaneous operating Expenses                            1,703       1,622
                                                           --------    --------
                                                             65,356      52,941
                                                           --------    --------
  Income from operations                                     11,853       9,410
                                                           --------    --------
OTHER INCOME (EXPENSE):
  Interest income                                               136         219
  Interest expense                                             (202)       (266)
                                                           --------    --------
                                                                (66)        (47)
                                                           --------    --------
  Income before taxes                                        11,787       9,363

INCOME TAXES                                                 (4,710)     (3,810)
                                                           --------    --------
  Net income                                               $  7,077    $  5,553
                                                           ========    ========
Net income per common share and
  common share equivalent:
  Basic                                                    $   0.19    $   0.15
                                                           ========    ========
  Diluted                                                  $   0.19    $   0.15
                                                           ========    ========
Weighted average number of common shares
and common share equivalents outstanding:
  Basic                                                      37,192      36,894
                                                           ========    ========
  Diluted                                                    38,087      38,082
                                                           ========    ========

         The accompanying notes are an integral part of these unaudited
                  condensed consolidated financial statements.

                                        3

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES
           CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)
                                 (IN THOUSANDS)

                                                            Three Months Ended
                                                                 March 31,
                                                           --------------------
                                                             2003        2002
                                                           --------    --------
CASH FLOWS FROM OPERATING ACTIVITIES

Net income                                                 $  7,077    $  5,553
Adjustments to reconcile net income to net cash
  provided by operating activities:
    Depreciation and amortization                             6,786       5,355
    Non-cash compensation expense for issuance of
      common stock to certain members of board of
      directors                                                  18          10
    Provision for allowance for doubtful accounts
      and notes receivable                                      136          77
    Interest rate swap agreement - fair value change             84          89
    Tax benefit on stock option exercises                       567         135
    Deferred income taxes                                     2,143         661
Changes in assets and liabilities:
    Decrease (increase) in trade receivables                    426        (206)
    (Increase) decrease in inventories and supplies            (155)        121
    Increase in prepaid expenses                             (2,514)     (2,309)
    (Increase) decrease in other assets                         (66)         61
    Increase in accounts payable                                304         608
    Increase in accrued liabilities and claims accrual        3,696       3,623
                                                           --------    --------

    Net cash provided by operating activities                18,502      13,778
                                                           --------    --------
CASH FLOW FROM INVESTING ACTIVITIES:

    Purchase of property and equipment, net                 (20,498)     (2,244)
    Investment in/advances to other companies                  (100)       (350)
    Decrease in notes receivable, net                           281         297
                                                           --------    --------

    Net cash used in investing activities                   (20,317)     (2,297)
                                                           --------    --------

         The accompanying notes are an integral part of these unaudited
                  condensed consolidated financial statements.

                                        4

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES
           CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)
                                 (IN THOUSANDS)

                                                            Three Months Ended
                                                                 March 31,
                                                           --------------------
                                                             2003        2002
                                                           --------    --------
CASH FLOW FROM FINANCING ACTIVITIES:

  Payments on long-term debt                                 (1,393)     (1,548)
  Proceeds from exercise of stock options                       594         770
                                                           --------    --------

  Net cash used in financing activities                        (799)       (778)
                                                           --------    --------

NET (DECREASE) INCREASE IN CASH AND
  CASH EQUIVALENTS                                           (2,614)     10,703
CASH AND CASH EQUIVALENTS,
  beginning of period                                        36,198      24,135
                                                           --------    --------

CASH AND CASH EQUIVALENTS, end of period                   $ 33,584    $ 34,838
                                                           ========    ========
SUPPLEMENTAL DISCLOSURES:

  Noncash investing and financing transactions:
    Equipment acquired in accounts payable                 $  7,341    $     --

  Cash flow information:
    Income taxes paid                                      $    216    $    132
    Interest paid                                               169         218

         The accompanying notes are an integral part of these unaudited
                  condensed consolidated financial statements.

                                        5

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1. FINANCIAL INFORMATION

The accompanying  condensed consolidated financial statements include the parent
company Knight Transportation,  Inc., and its wholly owned subsidiaries,  Knight
Transportation Services, Inc. (formerly Knight Administrative  Services,  Inc.);
Quad-K  Leasing,  Inc.;  KTTE  Holdings,   Inc.,  QKTE  Holdings,  Inc.;  Knight
Management Services, Inc.; Knight Transportation South Central Ltd.; and KTeCom,
L.L.C. All material inter-company items and transactions have been eliminated in
consolidation.

The  condensed  consolidated  financial  statements  included  herein  have been
prepared in accordance  with  accounting  principles  generally  accepted in the
United States of America ("GAAP"),  pursuant to the rules and regulations of the
Securities and Exchange Commission. Certain information and footnote disclosures
have been omitted or condensed  pursuant to such rules and  regulations.  In the
opinion  of  management,   all  adjustments   (consisting  of  normal  recurring
adjustments)  considered  necessary for a fair  presentation have been included.
Results of  operations  in interim  periods are not  necessarily  indicative  of
results for a full year. These condensed  consolidated  financial statements and
notes thereto  should be read in  conjunction  with our  consolidated  financial
statements and notes thereto  included in our Annual Report on Form 10-K for the
year ended December 31, 2002.

The  preparation  of  financial  statements  in  accordance  with GAAP  requires
management to make estimates and  assumptions.  Such  estimates and  assumptions
affect the reported  amounts of assets and  liabilities as well as disclosure of
contingent assets and liabilities,  at the date of the accompanying consolidated
financial  statements,  and the  reported  amounts of the  revenues and expenses
during the reporting periods. Actual results could differ from those estimates.

                                        6

NOTE 2. STOCK-BASED COMPENSATION

Stock-Based  Compensation - At March 31, 2003,  the Company had one  stock-based
employee compensation plan. The Company applies the intrinsic-value-based method
of accounting  prescribed by Accounting  Principles  Board (APB) Opinion No. 25,
"Accounting  for  Stock  Issued  to  Employees,"  and  related   interpretations
including  FASB  Interpretation  No. 44,  "Accounting  for Certain  Transactions
involving Stock  Compensation,  an interpretation of APB Opinion No. 25," issued
in March 2000, to account for its fixed-plan  stock options.  Under this method,
compensation expense is recorded on the date of grant only if the current market
price of the  underlying  stock  exceeded the  exercise  price.  No  stock-based
employee  compensation  cost is reflected in net income,  as all options granted
under the plan had an exercise price equal to the market value of the underlying
common stock on the date of the grant. SFAS No. 123, "Accounting for Stock-Based
Compensation,"  as  amended  by  SFAS  No.  148,   "Accounting  for  Stock-Based
Compensation - Transition and Disclosure," established accounting and disclosure
requirements  using a  fair-value-based  method of  accounting  for  stock-based
employee compensation plans. As allowed by SFAS No. 123, the Company has elected
to continue to apply the  intrinsic-value-based  method of accounting  described
above,  and has adopted only the  disclosure  requirements  of SFAS No. 123. The
following  table  illustrates  the effect on net income if the  fair-value-based
method had been applied to all  outstanding  and  unvested  awards for the three
month periods ended March 31 (in thousands, except per share data):

                                                          2003       2002
                                                        -------    -------
     Net income, as reported                            $ 7,077    $ 5,553
     Deduct total stock-based employee compensation
     expense determined under fair-value-based method
     for all rewards, net of tax                           (147)      (137)
                                                        -------    -------
     Pro forma net income                               $ 6,930    $ 5,416
                                                        =======    =======

     Diluted earnings per share - as reported           $  0.19    $  0.15
                                                        =======    =======
     Diluted earnings per share - pro forma             $  0.18    $  0.14
                                                        =======    =======

The fair value of each option  grant is estimated on the date of the grant using
the  Black-Scholes  option  pricing  model with the following  weighted  average
assumptions  used for grants in 2003 and 2002;  risk free  interest  rate 3.36%;
expected life of six years;  expected volatility of 52%; expected dividend yield
rate of zero, and expected forfeitures of 3.92%.

                                        7

NOTE 3. NET INCOME PER SHARE

A reconciliation  of the basic and diluted  earnings per share  computations for
the three months ended March 31, 2003 and 2002, is as follows:

                                                             Three Months Ended
                                                                  March 31,
                                                             -------------------
                                                               2003       2002
                                                             --------   --------
Weighted average common
  shares outstanding - basic                                   37,192     36,894

Effect of stock options                                           895      1,188
                                                             --------   --------
Weighted average common
  share and common share
  equivalents outstanding - diluted                            38,087     38,082
                                                             ========   ========

Net income                                                   $  7,077   $  5,553
                                                             ========   ========
  Net income per common share and
  common share equivalent
    Basic                                                    $   0.19   $   0.15
                                                             ========   ========
    Diluted                                                  $   0.19   $   0.15
                                                             ========   ========

NOTE 4. COMPREHENSIVE INCOME

Comprehensive income for the period was as follows:

                                                             Three Months Ended
                                                                  March 31,
                                                             -------------------
                                                               2003       2002
                                                             --------   --------
Net income                                                   $  7,077   $  5,553

Other comprehensive income:
Interest rate swap agreement - fair
market value adjustment                                            84         89
                                                             --------   --------

Comprehensive income                                         $  7,161   $  5,642
                                                             ========   ========

                                        8

NOTE 5. SEGMENT INFORMATION

Although we have ten operating  segments,  we have  determined  that we have one
reportable  segment.  Nine of the segments  are managed  based on regions in the
United States in which we operate.  Each of these segments have similar economic
characteristics  as they all  provide  short to  medium-haul  truckload  carrier
services of general  commodities  to a similar class of customers.  In addition,
each segment exhibits similar financial  performance,  including average revenue
per mile and operating ratio.  The remaining  segment is not reported because it
does not meet the  materiality  thresholds in Statement of Financial  Accounting
Standards (SFAS) No. 131. As a result, we have determined that it is appropriate
to aggregate our operating divisions into one reportable segment consistent with
the  guidance  in SFAS No.  131.  Accordingly,  we have not  presented  separate
financial  information for each of our operating  divisions as our  consolidated
financial statements present our one reportable segment.

NOTE 6. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

All  derivatives are recognized on the balance sheet at their fair value. On the
date the  derivative  contract is entered into,  we designate the  derivative as
either a hedge of the fair value of a  recognized  asset or  liability  or of an
unrecognized  firm  commitment  ("fair  value"  hedge),  a hedge of a forecasted
transaction or the variability of cash flows to be received or paid related to a
recognized asset or liability ("cash flow" hedge), a foreign-currency fair-value
or cash-flow hedge ("foreign currency" hedge), or a hedge of a net investment in
a foreign operation. We formally assess, both at the hedge's inception and on an
ongoing basis, whether the derivatives that are used in hedging transactions are
highly  effective in  offsetting  changes in fair values or cash flows of hedged
items.  When it is  determined  that a derivative  is not highly  effective as a
hedge or that it has ceased to be a highly effective hedge, we discontinue hedge
accounting prospectively.

In  August  and  September  2000,  and in  July  2001,  we  entered  into  three
agreements,  respectively,  which are designated as derivative contracts.  These
three contracts  relate to the price of heating oil on the New York  Merchantile
Exchange  ("NYMX") and were entered into in  connection  with volume diesel fuel
purchases between October 2000 and February 2002. The three agreements described
above are stated at their fair market value,  based on an option provided by the
issuer of the agreements to dissolve the agreements for $750,000,  which expires
on July 7, 2003.

During  2001,  we entered  into an  interest  rate swap  agreement  on the $12.2
million  outstanding on our line of credit for purposes of better  managing cash
flow. On November 7, 2001, we paid $762,500 to settle this swap  agreement.  The
amount is  included  in other  comprehensive  income and is being  amortized  to
interest expense over the original 36-month term of the swap agreement.

NOTE 7. RECENTLY ADOPTED AND TO BE ADOPTED ACCOUNTING PRONOUNCEMENTS

In June 2001,  the FASB issued SFAS No. 143,  "Accounting  for Asset  Retirement
Obligations"  (SFAS No.  143).  SFAS No. 143  requires the Company to record the
fair value of an asset  retirement  obligation  as a liability  in the period in
which it incurs a legal  obligation  associated  with the retirement of tangible
long-lived  assets that result from the acquisition,  construction,  development
and/or normal use of the assets. The Company also records a corresponding  asset
which is  depreciated  over the life of the  asset.  Subsequent  to the  initial
measurement of the asset retirement obligation,  the obligation will be adjusted
at the end of each  period to reflect  the  passage  of time and  changes in the
estimated future cash flows underlying the obligation.  The Company adopted SFAS
No. 143 on January 1, 2003. The adoption of SFAS No. 143 did not have a material
impact on our consolidated financial statements.

                                        9

In June 2002,  the FASB issued SFAS No.  146,  "Accounting  for Exit or Disposal
Activities" (SFAS No. 146). SFAS No. 146 addresses the recognition,  measurement
and reporting of costs associated with exit and disposal  activities,  including
restructuring  activities.  SFAS No. 146 also  addresses  recognition of certain
costs related to terminating a contract that is not a capital lease, recognition
of costs to  consolidate  facilities or relocate  employees and  recognition  of
costs for termination of benefits  provided to employees that are  involuntarily
terminated  under the terms of a  one-time  benefit  arrangement  that is not an
ongoing benefit  arrangement or an individual  deferred  compensation  contract.
SFAS No. 146 is effective  for exit or disposal  activities  that are  initiated
after  December 31,  2002.  The adoption of SFAS No. 146 did not have a material
impact on our consolidated financial statements.

In November 2002, the FASB issued Interpretation No. 45, "Guarantor's Accounting
and Disclosure  Requirements for Guarantees,  Including  Indirect  Guarantees of
Indebtedness to Others,  an  interpretation of FASB Statements No. 5, 57 and 107
and a rescission of FASB Interpretation No. 34." This interpretation  elaborates
on the disclosures to be made by a guarantor in its interim and annual financial
statements about its obligations under guarantees  issued.  This  interpretation
also  clarifies  that a guarantor  is required to  recognize  at  inception of a
guarantee,  a liability  for the fair value of the  obligation  undertaken.  The
initial  recognition  and  measurement  provisions  of this  interpretation  are
applicable to guarantees issued or modified after December 31, 2002, and are not
expected to have a material effect on our consolidated financial statements. The
disclosure  requirements  are effective for financial  statements of interim and
annual  periods  ending  after  December  31,  2002.  The  application  of  this
interpretation  did not have a  material  effect on our  consolidated  financial
statements.

In January  2003,  the FASB  issued  Interpretation  No. 46,  "Consolidation  of
Variable   Interest   Entities,   an   interpretation   of  ARB  No.  51."  This
interpretation  addresses the consolidation by business  enterprises of variable
interest entities as defined in this interpretation. This interpretation applies
immediately to variable  interests in variable  interest  entities created after
January 31,  2003,  and to variable  interests  in  variable  interest  entities
obtained after January 31, 2003. For public enterprises with a variable interest
in  a  variable   interest   entity  created  before   February  l,  2003,  this
interpretation  applies to that  enterprise  no later than the  beginning of the
first interim or annual  reporting  period  beginning  after June 15, 2003.  The
application  of  this  interpretation  did not  have a  material  effect  on our
consolidated financial statements.

NOTE 8. COMMITMENTS AND CONTINGENCIES

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

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS

Except for certain  historical  information  contained  herein,  this  Quarterly
Report on Form 10-Q contains  forward-looking  statements  within the meaning of
the Private Securities Litigation Reform Act of 1995. Forward-looking statements
involve risks, assumptions and uncertainties which are difficult to predict. All
statements,  other than statements of historical fact, are statements that could
be deemed  forward-looking  statements,  including any  projections of earnings,
revenues,  or other financial  items,  any statement of plans,  strategies,  and
objectives  of  management  for future  operations;  any  statements  concerning
proposed  new  strategies  or  developments;  any  statements  regarding  future
economic  conditions or performance;  any statements of belief and any statement
of assumptions underlying any of

                                       10

the foregoing. Words such as "believe," "may," "could" "expects," "anticipates'"
and  "likely,"  and  variations  of these  words,  or similar  expressions,  are
intended to identify such forward-looking  statements.  Our actual results could
differ materially from those discussed in  forward-looking  statements.  Factors
that could cause or contribute to such differences  include, but are not limited
to,  those items  discussed  in the section  entitled  "Factors  That May Affect
Future  Results,"  and  "Management's   Discussion  and  Analysis  of  Financial
Condition  and  Results of  Operations"  set forth in our Annual  Report on Form
10-K,  which is by this reference  incorporated  herein.  We do not assume,  and
specifically  disclaim,  any obligation to update any forward-looking  statement
contained in this Quarterly Report.

OVERVIEW

We are a dry van  truckload  carrier  based in Phoenix,  Arizona.  We  transport
general  commodities  for  shippers  throughout  the  United  States,  generally
focusing our operations on short-to-medium  lengths of haul in our ten operating
regions.  Over the past five  years we have  achieved  substantial  growth  from
$125.0  million in revenue,  before  fuel  surcharge,  and $13.3  million in net
income in 1998 to $279.3 million in revenue,  before fuel  surcharge,  and $27.9
million in net income in 2002.  The main factors that affect our results are the
number of tractors we operate, our revenue per tractor (which includes primarily
our revenue per total mile and our number of miles per tractor), and our ability
to control our costs.

For the quarter  ended  March 31,  2003,  our  revenue,  before fuel  surcharge,
increased  18.8% to $73.6  million  from $61.9  million for the same  quarter of
2002.  Net income  increased  27.4% to $7.1 million from $5.6  million,  and net
income per diluted share increased  26.7% to $0.19 from $0.15.  The main factors
contributing to the improvement  were a 13.8% increase in average tractors and a
4.8% increase in revenue per tractor  versus the 2002  quarter.  We expanded our
business geographically and increased our volume in existing territories.  These
factors more than offset  higher costs of  insurance,  maintenance  and fuel. We
ended the quarter with $33.6  million in cash and $13.5  million in  borrowings.
Our shareholders' equity was $208.0 million.

NOTE REGARDING REVENUE AND EXPENSES

Our total revenue for the three months ended March 31, 2003,  increased to $77.2
million from $62.4 million for the same period in 2002.  Total revenue  included
$3.7 million of fuel  surcharge  revenue in the 2003 period and $461,000 of fuel
surcharge revenue in the 2002 period. In discussing our results of operations we
use  revenue,  before fuel  surcharge,  (and fuel  expense,  net of  surcharge,)
because we believe that  eliminating  this sometimes  volatile source of revenue
and  expense  affords a more  consistent  basis for  comparing  our  results  of
operations from period to period. We also discuss the changes in our expenses as
a percentage of revenue,  before fuel  surcharge,  rather than  absolute  dollar
changes.  We do this  because we believe  the high  variable  cost nature of our
business  makes a comparison  of changes in expenses as a percentage  of revenue
more meaningful than absolute changes.

RESULTS OF OPERATIONS

Our revenue,  before fuel surcharge,  for the three months ended March 31, 2003,
increased by 18.8% to $73.6  million  from $61.9  million for the same period in
2002. The increase in revenue, before fuel surcharge,  resulted primarily from a
13.7% increase in average  tractors as we expanded our  geographic  coverage and
increased  our business in existing  territories,  as well as a 4.5% increase in
revenue per average tractor.  A significant  increase in our revenue per tractor
was  accomplished  from  increased  revenue  per mile  resulting  from our sales
efforts,  a market  that  was  more  receptive  to rate  increases,  and a lower
percentage of non-revenue miles was partially offset by lower miles per tractor.
Although it is our goal to improve  revenue per mile over time, we do not expect
our improvement in revenue per mile versus the same period last year to continue
at the same level because we believe revenue per mile for the first half of 2002
was at a low base.

                                       11

Salaries,  wages and benefits decreased as a percentage of revenue,  before fuel
surcharge,  to 32.3% for the three months  ended March 31, 2003,  from 34.4% for
the same period in 2002.  This  decrease was primarily the result of an increase
in revenue per mile,  which increased the revenue  generated per tractor without
an  increase in the miles for which our drivers  were  compensated.  Our cost of
health and  workers'  compensation  programs,  which are  included in  salaries,
wages,  and benefits,  remained  relatively  constant as a percentage of revenue
between the two periods.

Fuel  expense,  net of fuel  surcharge,  increased as a  percentage  of revenue,
before fuel surcharge,  to 14.4% for the three months ended March 31, 2003, from
13.8% for the same period in 2002.  This  increase was  primarily  the result of
higher fuel costs per gallon. Independent contractors pay their own fuel costs.

Operations and maintenance expense increased as a percentage of revenue,  before
fuel surcharge,  to 6.4% for the three months ended March 31, 2003 from 5.5% for
the same period in 2002. This increase resulted from increased tire expenses and
increased  maintenance  expenses  due to the aging of our fleet,  along with the
increase in the ratio of Company  operated  vehicles to  independent  contractor
operated vehicles.

Insurance and claims expense  increased as a percentage of revenue,  before fuel
surcharge,  to 5.2% for the three months ended March 31, 2003, from 4.3% for the
same  period in 2002.  The  primary  reasons  for these  increases  were  higher
insurance premiums and an increase in our self-insurance  retention level. Based
on our current insurance policies and experience, and excluding any catastrophic
events,  we expect our insurance and claims expense to be approximately  4.7% to
5.3% of revenue, before fuel surcharge, for the next several quarters.

Operating taxes and licenses as a percentage of revenue,  before fuel surcharge,
for the three months ended March 31, 2003, remained essentially constant at 2.9%
compared to 3.0% for the same period in 2002.

Communications  expense as a  percentage  of  revenue,  before  fuel  surcharge,
remained  at 1.0% for the three  months  ended  March 31,  2003 and for the same
period in 2002.

Depreciation  and amortization  expense as a percentage of revenue,  before fuel
surcharge,  increased to 9.2% for the three  months  ended March 31, 2003,  from
8.7% for the same period in 2002.  This  increase was  primarily  related to the
increase in the ratio of purchased vehicles as a percentage of total vehicles in
our fleet. Our total fleet includes purchased vehicles,  vehicles acquired under
operating lease agreements, and vehicles provided by independent contractors.

Lease  expense - revenue  equipment  as a  percentage  of  revenue,  before fuel
surcharge,  was 2.7% for the three months ended March 31, 2003  compared to 3.7%
for the same period in 2002.  This decrease was primarily due to the increase in
purchased  vehicles as a percentage of total vehicles in our fleet, as discussed
above.

Purchased  transportation  decreased  as a  percentage  of revenue,  before fuel
surcharge,  to 7.5% for the three months ended March 31, 2003, from 7.9% for the
same  period in 2002.  This  decrease  was  primarily  due to the  growth of our
Company fleet. Our independent  contractors  provided 9.8% of our total fleet at
March  31,  2003,  compared  to 10.3% for the same  period in 2002.  Independent
contractors pay their own expenses and are compensated at a fixed rate per mile.

Miscellaneous  operating  expenses  as a  percentage  of  revenue,  before  fuel
surcharge, decreased to 2.3% for the three months ending March 31, 2003 compared
to 2.6% for the same period in 2002.  The decrease was  primarily  the result of
increased revenue.

                                       12

As a result of the above factors, our operating ratio (operating  expenses,  net
of fuel  surcharge,  as a percentage of revenue,  before fuel surcharge) for the
three  months  ended March 31,  2003,  was 83.9%  compared to 84.8% for the same
period in 2002.

For the three months ended March 31, 2003,  and for the same period in 2002, net
interest  expense  remained  at 0.1% as a  percentage  of  revenue,  before fuel
surcharge.

Income  taxes have been  provided  at the  statutory  federal  and state  rates,
adjusted for certain  permanent  differences  between  financial  statement  and
income tax reporting.

As a result of the preceding changes, our net income as a percentage of revenue,
before fuel  surcharge,  was 9.6% for the three  months  ended  March 31,  2003,
compared to 9.0% for the same period in 2002.

LIQUIDITY AND CAPITAL RESOURCES

The growth of our business has required  significant  investment  in new revenue
equipment.  Our  primary  sources  of  liquidity  have been  funds  provided  by
operations and our line of credit. Net cash provided by operating activities was
approximately  $18.5  million  for the first three  months of 2003,  compared to
$13.8 million for the corresponding period in 2002.

Net cash used in investing  activities  totaled 20.3 million for the first three
months  of 2003  compared  to $2.3  million  for the same  period  in 2002.  The
increase  was the result of an  increase  in  delivery  or payment  for  revenue
equipment in the 2003 period,  compared to the 2002 period.  The 2002 period was
an unusually low period for deliveries for us.

Net cash used in financing  activities remained consistent at approximately $0.8
million for the first three months of 2003 and for the same period in 2002.  Net
cash used in financing activities during the first three months of 2003 and 2002
was primarily for the payment of long-term debt.

We maintain a line of credit totaling $50.0 million.  We are obligated to comply
with certain financial covenants under our line of credit and were in compliance
with these  covenants  at March 31,  2003.  The rate of interest  on  borrowings
against the line of credit will vary  depending  upon the interest rate election
made by us, based upon either the London  Interbank  Offered Rate ("Libor") plus
an applicable  margin,  or the prime rate.  Borrowings  under the line of credit
amounted to $12.2 million at March 31, 2003.  The line of credit expires in July
2004. The line of credit contains a letter of credit  subfacility  that directly
reduces available borrowing. At March 31, 2003, the letter of credit subfacility
was $10.0 million.

Through our  subsidiaries,  we have entered into lease agreements under which we
lease revenue equipment.  The total amount outstanding under these agreements as
of March 31,  2003,  was $10.9  million,  with $5.1  million  due in the next 12
months.

As of March 31, 2003,  we held $33.6  million in cash and cash  equivalents.  We
believe we will be able to finance our near term needs for working  capital,  as
well as  acquisitions  of revenue  equipment,  with cash flows from  operations,
borrowings  available  under the line of credit,  and operating  lease financing
believed to be available to finance revenue equipment.  We will continue to have
significant  capital  requirements  over the long term,  which may require us to
incur debt or seek additional  equity capital.  The availability of this capital
will depend upon prevailing  market  conditions,  the market price of the common
stock and several other factors over which we have limited  control,  as well as
our financial condition and results of operations.

                                       13

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

The preparation of financial statements in accordance with accounting principles
generally accepted in the United States of America requires that management make
a number of  assumptions  and  estimates  that  affect the  reported  amounts of
assets,  liabilities,   revenue  and  expenses  in  our  consolidated  financial
statements and accompanying  notes. Our critical  accounting  policies are those
that affect our financial statements  materially and involve a significant level
of judgment by management.  Our critical  accounting  policies  include  revenue
recognition,  insurance  and claims  reserves,  depreciation  and  amortization,
valuation of long-lived  assets and accounting for income taxes.  For additional
information,  please refer to the  discussion  of Critical  Accounting  Policies
contained  in our most  recent  annual  report on Form 10-K under  "Management's
Discussion  and  Analysis of  Financial  Condition  and Results of  Operations -
Critical  Accounting  Policies  and  Estimates"  and  in  the  footnotes  to our
consolidated  financial  statements,  particularly  note 1.  There  have been no
significant  changes in our Company's  critical  accounting  policies during the
first quarter of 2003.

FACTORS THAT MAY AFFECT FUTURE RESULTS

Our future  results may be  affected  by a number of factors  over which we have
little or no control. Fuel prices, insurance and claims costs, liability claims,
interest  rates,  the  availability  of qualified  drivers,  fluctuations in the
resale value of revenue  equipment,  economic and customer  business  cycles and
shipping  demands  are  factors  over  which  we  have  little  or  no  control.
Significant  increases or rapid  fluctuations in fuel prices,  interest rates or
insurance costs or liability claims, to the extent not offset by fuel surcharges
and increases in freight rates, and the resale value of revenue equipment, could
reduce our profitability.  Weakness in the general economy, including a weakness
in consumer demand for goods and services,  could adversely affect our customers
and our growth and revenues, if customers reduce their demand for transportation
services.  Weakness in customer  demand for our  services or in the general rate
environment  may also  restrain  our  ability to  increase  rates or obtain fuel
surcharges.  It is also not possible to predict the effects of terrorist attacks
and  subsequent  events on the economy or on customer  confidence  in the United
States, or the impact, if any, on our future results of operations.

The following issues and  uncertainties,  among others,  should be considered in
evaluating our growth outlook:

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

INSURANCE.  Our future  insurance and claims  expenses  might exceed  historical
levels,  which could reduce our earnings.  During 2002, we were self-insured for
personal injury and property damage  liability,  cargo liability,  collision and
comprehensive  up to a maximum  limit of $1.75 million per  occurrence.  We were
self-insured  for workers'  compensation  up to a maximum  limit of $500,000 per
occurrence.  In the  first  quarter  of  2003,  we  amended  our  self-insurance
retention  levels to a combined  $2.0 million for  personal  injury and property
damage  liability,  cargo  liability,  collision,   comprehensive  and  worker's
compensation   per   occurrence.   Our  maximum   self-retention   for  workers'
compensation  where a traffic  accident is not  involved  remains  $500,000  per
occurrence.  We maintain insurance with licensed  insurance  companies above the
amounts for which we self-insure. Following changes made in the first quarter of
2003, our

                                       14

insurance  policies now provide for excess  personal  injury and property damage
liability  up to a total of $35.0  million  per  occurrence,  compared  to $30.0
million per occurrence for 2002, and cargo liability,  collision,  comprehensive
and  workers'  compensation  coverage  up  to  a  total  of  $10.0  million  per
occurrence.  Our  personal  injury and  property  damage  policies  also include
coverage for punitive damages where such coverage is allowed.

If the number of claims for which we are self-insured  increases,  our operating
results could be adversely  affected.  After several years of aggressive pricing
in the 1990s,  insurance  carriers raised premiums which increased our insurance
and claims  expense.  The terrorist  attacks of September 11, 2001,  exacerbated
already difficult  conditions in the United States insurance market resulting in
additional  increases in our insurance  expenses.  If these expenses continue to
increase,  or if the  severity  or  number  of claims  increase  or  exceed  our
self-retention  limits,  and if we are unable to offset the resulting  increases
with higher  freight  rates,  our earnings  could be  materially  and  adversely
affected.

REVENUE EQUIPMENT. Our growth has been made possible through the addition of new
revenue  equipment.  Difficulty in financing or obtaining new revenue  equipment
(for  example,  delivery  delays from  manufacturers  or the  unavailability  of
independent contractors) could restrict future growth.

In the past we have  acquired new  tractors  and  trailers at favorable  prices,
including  agreements with the  manufacturers to repurchase the tractors from us
at agreed  prices.  Current  developments  in the secondary  tractor and trailer
resale  market have  resulted in a large supply of used tractors and trailers on
the market.  This has  depressed  the market  value of used  equipment to levels
significantly  below  the  prices  at which  the  manufacturers  have  agreed to
repurchase  the  equipment.  Accordingly,  some  manufacturers  may refuse or be
financially unable to keep their commitments to repurchase  equipment  according
to their  repurchase  agreement terms.  Some  manufacturers  have  significantly
increased new equipment prices,  in part to meet new engine design  requirements
imposed,  effective  October 1, 2002, by the EPA and eliminate or sharply reduce
the price of repurchase commitments.

Our business plan and current  contract  take into account new  equipment  price
increases due to engine design  requirements  imposed effective October 1, 2002,
by the EPA. The cost of operating new engines is expected to be somewhat  higher
than the cost of  operating  older  engines.  If new  equipment  prices  were to
increase more than anticipated,  or if the price of repurchase  commitments were
to decrease or fail to be honored by equipment manufacturers, we may be required
to increase our depreciation  and financing costs,  write down the value of used
equipment, and/or retain some of our equipment longer, with a resulting increase
in  maintenance  expenses.  If our resulting  cost of revenue  equipment were to
increase, and/or prices of used revenue equipment were to decline, our operating
costs could increase,  which could  materially and adversely affect our earnings
and cash flows, if we are unable to obtain  commensurate  rate increases or cost
savings.

REGIONAL  OPERATIONS.  Currently,  a  significant  portion  of our  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 materially
adverse  effect on our growth and  profitability.  If we do not  continue  to be
successful at deriving a more  significant  portion of our revenues from markets
throughout the United States,  our growth and profitability  could be materially
and  adversely  affected by general  economic  declines or natural  disasters in
those markets.

In  addition  to our  headquarters  in  Phoenix,  Arizona,  we have  established
regional  operations in Katy, Texas;  Indianapolis,  Indiana;  Charlotte,  North
Carolina;  Gulfport,  Mississippi;  Salt Lake City, Utah;  Kansas City,  Kansas;
Portland,  Oregon;  and Memphis,  Tennessee,  in order to serve markets in these
regions. Additionally, we established operations in Atlanta, Georgia, subsequent
to  March  31,  2003.  These  regional  operations  require  the  commitment  of
additional revenue equipment and personnel, as

                                       15

well as management resources,  for future development.  Should the growth of our
regional operations  throughout the United States slow or stagnate,  the results
of our  operations  could be  adversely  affected.  We may  encounter  operating
conditions in these new markets that differ  substantially from those previously
experienced in our western United States markets. There can be no assurance that
our regional operating  strategy,  as employed in the western United States, can
be  duplicated  successfully  in the other areas of the United States or that it
will not take  longer  than  expected  or require a more  substantial  financial
commitment than anticipated.

INFLATION. Many of our operating expenses,  including fuel costs and fuel taxes,
are  sensitive  to the  effects  of  inflation,  which  could  result  in higher
operating costs.  During 2002 and the first three months of 2003, we experienced
fluctuations in fuel costs, as a result of conditions in the petroleum industry.
We also have periodically experienced some wage increases for drivers. Increases
in fuel costs and driver  compensation could continue during 2003 and may affect
our  operating  income,  unless  we are able to pass  those  increased  costs to
customers  through  rate  increases  or fuel  surcharges.  We have  initiated an
aggressive  program to obtain rate increases and fuel  surcharges from customers
in order to cover increased costs due to these increases in fuel prices,  driver
compensation  and other expenses and have been successful in  implementing  some
fuel  surcharges.   Competitive  conditions  in  the  transportation   industry,
including lower demand for transportation  services,  could limit our ability to
continue to obtain rate increases or fuel surcharges.

DRIVER  RETENTION.  Difficulty  in attracting  or retaining  qualified  drivers,
including independent contractors,  or a downturn in customer business cycles or
shipping  demands also could have a materially  adverse effect on our growth and
profitability.  If a shortage of drivers  should  occur in the future,  or if we
were unable to continue to attract and contract with independent contractors, we
could be  required  to adjust  our  driver  compensation  package,  which  could
adversely affect our profitability if not offset by a corresponding  increase in
rates.

SEASONALITY.  In the transportation  industry,  results of operations frequently
show a seasonal  pattern.  Seasonal  variations  may result from weather or from
customer's  reduced shipments after the busy winter holiday season. To date, our
revenue  has  not  shown  any  significant  seasonal  pattern.  Because  we have
significant  operations in Arizona,  California  and the western  United States,
winter weather generally has not adversely affected our business.  The continued
expansion  of our  operations  throughout  the United  States could expose us to
greater operating  variances due to seasonal weather in these regions.  Shortage
of energy issues in California  and elsewhere in the Western United States could
result in an adverse effect on our operations and demand for our services should
these shortages  continue or increase.  This risk may exist in the other regions
in which we operate, depending upon availability of energy.

TECHNOLOGY.  We utilize  Terion's  trailer-tracking  technology  to assist  with
monitoring  the majority of our  trailers.  Terion has emerged from a Chapter 11
bankruptcy  and a plan of  reorganization  has been  approved by the  Bankruptcy
Court. If Terion ceases operations or abandons that trailer-tracking technology,
we would be required to incur the cost of replacing that  technology or could be
forced to operate  without this  technology,  which could  adversely  affect our
trailer utilization and our ability to assess detention charges.

STOCK PRICE VOLATILITY. The market price of our common stock could be subject to
significant  fluctuations in response to certain factors,  such as variations in
our  anticipated or actual results of operations or in the anticipated or actual
results of operations of other companies in the transportation industry, changes
in conditions  affecting the economy generally,  including incidents of military
action or terrorism,  analyst reports,  general trends in the industry, sales of
common stock by insiders,  as well as other  factors  unrelated to our operating
results. Volatility in the market price of our common stock may prevent you from
being able to sell your shares at or above the price you paid for your shares.

                                       16

INVESTMENTS.   We  have   invested  in  and/or  loaned  to   Concentrek,   Inc.,
("Concentrek")  a  transportation  logistics  company  $3.7 million on a secured
basis. Of this $3.7 million, $2.6 million is personally guaranteed by members of
the Knight family. We own approximately 17% of Concentrek,  and the remainder is
owned  by  members  of  the  Knight  family  and  Concentrek's  management.   If
Concentrek's financial position does not continue to improve, or if it is unable
to raise  additional  capital,  we could be forced to write  down all or part of
this investment.

For other  risks and  uncertainties  that might  affect  our future  operations,
please  review  Part  II of our  Annual  Report  on  Form  10-K -  "MANAGEMENT'S
DISCUSSION  AND ANALYSIS OF  FINANCIAL  CONDITIONS  AND RESULTS OF  OPERATIONS -
FACTORS THAT MAY AFFECT FUTURE RESULTS."

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The Company is exposed to market risk from changes in interest rates on debt and
from changes in commodity prices.  Under Financial  Accounting Reporting Release
Number 48, we are required to disclose  information  concerning market risk with
respect to foreign exchange rates, interest rates, and commodity prices. We have
determined that market risk for interest rates and currency fluctuations are not
material  because of our low level of debt and because  all of our  transactions
are in  Unites  States  dollars.  We have not used  derivative  instruments  for
speculation  or  trading.  We have  elected to make the  disclosures  concerning
commodity  price  risk  using  a  sensitivity   analysis   approach,   based  on
hypothetical changes in commodity prices.

COMMODITY  PRICE RISK.  We are subject to  commodity  price risk with respect to
purchases of fuel. Prices and availability of petroleum  products are subject to
political,  economic and market factors that are generally  outside our control.
Because our operations are dependent upon diesel fuel,  significant increases in
diesel  fuel  costs  could  materially  and  adversely  affect  our  results  of
operations and financial  condition if we are unable to pass increased  costs on
to customers  through rate increases or fuel surcharges.  Historically,  we have
sought  to  recover  a portion  of our  short-term  fuel  price  increases  from
customers through fuel surcharges.  Fuel surcharges that can be collected do not
always offset the increase in the cost of diesel fuel.

We are party to three contracts  relating to the price of heating oil on the New
York  Merchantile  Exchange  ("NYMX")  that we entered into in  connection  with
volume  diesel fuel  purchases  between  October 2000 and February  2002. If the
price of heating oil on the NYMX falls below $0.58 per gallon we may be required
to pay the  difference  between  $0.58 and the index  price (1) for 1.0  million
gallons  per month for any  twelve  months  between  April 1, 2003 and March 31,
2005,  and (2) for 750,000  gallons per month for the twelve  months of 2005. At
May 5,  2003,  the  price of  heating  oil on the NYMX was  $0.70  for June 2003
contracts.  For each $0.05 per gallon the price of heating  oil would fall below
$0.58  per  gallon  during  the  relevant  periods,  our  potential  loss on the
contracts would be approximately $1.0 million.  However, our net savings on fuel
costs from lower contracts would be approximately $700,000 after taking the loss
on the contracts into consideration. We have valued these items at fair value in
the accompanying March 31, 2003, condensed consolidated financial statements.

                                       17

ITEM 4. CONTROLS AND PROCEDURES

As required by Rule 13a-14 under the Exchange  Act,  within 90 days prior to the
filing  date of this  report,  the  Company  carried  out an  evaluation  of the
effectiveness of the design and operation of the Company's  disclosure  controls
and  procedures.  This  evaluation was carried on under the supervision and with
the  participation  of the Company's  management,  including our Chief Executive
Officer and our Chief

Financial Officer.  Based upon that evaluation,  our Chief Executive Officer and
Chief  Financial   Officer  concluded  that  our  controls  and  procedures  are
effective.  There have been no  significant  changes in the  Company's  internal
controls or in other factors that could  significantly  affect internal controls
subsequent to the date the Company carried out this evaluation.

Disclosure  controls and procedures are controls and other  procedures  that are
designed to ensure that  information  required to be disclosed in the  Company's
reports  filed or  submitted  under the  Exchange  Act is  recorded,  processed,
summarized and reported within the time periods  specified in the Securities and
Exchange  Commission's  rules and  forms.  Disclosure  controls  and  procedures
include controls and procedures designed to ensure that information  required to
be disclosed in Company  reports filed under the Exchange Act is accumulated and
communicated to management,  including the Company's Chief Executive  Officer as
appropriate, to allow timely decisions regarding disclosures.

The  Company  has   confidence   in  its  internal   controls  and   procedures.
Nevertheless,  the Company's  management,  including the Chief Executive Officer
and Chief Financial Officer,  does not expect that our disclosure procedures and
controls or our internal controls will prevent all errors or intentional  fraud.
An internal  control  system,  no matter how well  conceived and  operated,  can
provide only  reasonable,  not absolute,  assurance  that the objectives of such
internal  controls are met.  Further,  the design of an internal  control system
must reflect the fact that there are resource  constraints,  and the benefits of
controls  must be  considered  relative to their costs.  Because of the inherent
limitations  in all internal  control  systems,  no  evaluation  of controls can
provide  absolute  assurance that all control issues and instances of fraud,  if
any, within the Company have been detected.

PART II  - OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

We are a party to ordinary,  routine litigation and  administrative  proceedings
incidental to our  business.  These  proceedings  primarily  involve  claims for
personal injury or property damage incurred in the transportation of freight and
for personnel matters.

ITEM 2. CHANGES IN SECURITIES AND USE OF PROCEEDS

     Not Applicable

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

     Not Applicable

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

     Not Applicable

                                       18

ITEM 5. OTHER INFORMATION

     Not Applicable

ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K

     (a) Exhibits required by Item 601 of Regulation S-K

     EXHIBIT NO.    DESCRIPTION
     -----------    -----------

     Exhibit 3      Articles of Incorporation and Bylaws

          (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.)

          (3.1.1)   First Amendment to Restated Articles of Incorporation of the
                    Company  (Incorporated  by reference to Exhibit 3.1.1 to the
                    Company's report on Form 10-K for the period ending December
                    31, 2000.)

          (3.1.2)   Second  Amendment to Restated  Articles of  Incorporation of
                    the Company  (Incorporated  by reference to Exhibit 3.1.2 to
                    the  Company's   Registration  Statement  on  Form  S-3  No.
                    333-72130.)

          (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.)

          (3.21)    Amendment  to Amended  and  Restated  Bylaws of the  Company
                    (Incorporated  by reference to Exhibit 99.1 to the Company's
                    Current Report on Form 8-K dated February 6, 2003.)

     Exhibit 4      Instruments   defining  the  rights  of  security   holders,
                    including indentures

          (4.1)     Articles  4,  10  and  11  of  the   Restated   Articles  of
                    Incorporation of the Company.  (Incorporated by reference to
                    Exhibit  3.1 to the  Company's  Report  on Form 10-K for the
                    fiscal year ended December 31, 1994.)

          (4.2)     Sections 2 and 5 of the 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  fiscal  year  ended
                    December 31, 1995.)

                                       19

     Exhibit 11     Schedule   of   Computation   of  Net   Income   Per   Share
                    (Incorporated  by  reference  from  Note 3, Net  Income  Per
                    Share, in the Notes To Consolidated  Financial Statements on
                    Form 10-Q, for the quarter ended March 31, 2003.)

     (b) Reports on Form 8-K

     During the  quarter  ended March 31,  2003,  the  Company  filed  with,  or
furnished to, the  Securities and Exchange  Commission  (the  "Commission")  the
following Current Reports on Form 8-K:

Current  Report on Form 8-K dated February 6, 2003 (filed with the Commission on
February 10, 2003) reporting an adoption of an amendment to the Company's Bylaws
and announcing the date of the Company's Annual Meeting of Shareholders;

Current  Report on Form 8-K dated March 14, 2003 (filed with the  Commission  on
March 14, 2003)  reporting  that the  Company's  President  and Chief  Executive
Officer  and  Chief  Financial  Officer  had  provided  to  the  Commission  the
certifications  required by Section 906 of the  Sarbanes-Oxley Act in connection
with the filing of the Company's Annual Report on Form 10-K;

                                       20

                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.


                                        KNIGHT TRANSPORTATION, INC.


Date: May 12, 2003                      By: /s/ Kevin P. Knight
                                            ------------------------------------
                                            Kevin P. Knight
                                            Chief Executive Officer, in his
                                            capacity as such and on behalf of
                                            the registrant


Date: May 12, 2003                      By: /s/ Timothy Kohl
                                            ------------------------------------
                                            Timothy Kohl
                                            Chief Financial Officer and
                                            Principal Financial Officer, in his
                                            capacity as such and on behalf of
                                            the registrant

                                       21

                                 CERTIFICATIONS

I, Kevin P. Knight, certify that:

1.   I  have   reviewed   this   quarterly   report   on  Form  10-Q  of  Knight
     Transportation, Inc.;

2.   Based on my knowledge,  this  quarterly  report does not contain any untrue
     statement of a material fact or omit to state a material fact  necessary to
     make the statements  made, in light of the  circumstances  under which such
     statements  were made, not misleading with respect to the period covered by
     this quarterly report;

3.   Based on my  knowledge,  the  financial  statements,  and  other  financial
     information  included  in this  quarterly  report,  fairly  present  in all
     material respects the financial  condition,  results of operations and cash
     flows of the  registrant  as of, and for,  the  periods  presented  in this
     quarterly report;

4.   The  registrant's  other  certifying  officer  and  I are  responsible  for
     establishing and maintaining disclosure controls and procedures (as defined
     in Exchange Act Rules 13a-14 and 15d-14) for the registrant and have:

     a)  designed  such  disclosure  controls  and  procedures  to  ensure  that
         material  information   relating  to  the  registrant,   including  its
         consolidated  subsidiaries,  is made known to us by others within those
         entities, particularly during the period in which this quarterly report
         is being prepared;

     b)  evaluated the effectiveness of the registrant's disclosure controls and
         procedures as of a date within 90 days prior to the filing date of this
         quarterly report (the "Evaluation Date"); and

     c)  presented  in  this  quarterly   report  our   conclusions   about  the
         effectiveness  of the disclosure  controls and procedures  based on our
         evaluation as of the Evaluation Date;

5.   The registrant's  other certifying  officer and I have disclosed,  based on
     our most recent  evaluation,  to the  registrant's  auditors  and the audit
     committee of  registrant's  board of directors (or persons  performing  the
     equivalent function):

     a)  all  significant  deficiencies  in the design or  operation of internal
         controls  which  could  adversely  affect the  registrant's  ability to
         record,   process,   summarize  and  report  financial  data  and  have
         identified  for the  registrant's  auditors any material  weaknesses in
         internal controls; and

     b)  any fraud,  whether or not material,  that involves management or other
         employees  who have a  significant  role in the  registrant's  internal
         controls; and

6.   The  registrant's  other  certifying  officer and I have  indicated in this
     quarterly  report  whether  there  were  significant  changes  in  internal
     controls  or in other  factors  that could  significantly  affect  internal
     controls  subsequent to the date of our most recent  evaluation,  including
     any corrective actions with regard to significant deficiencies and material
     weaknesses.


Date: May 12, 2003                      /s/ Kevin P. Knight
                                        ----------------------------------------
                                        Kevin P. Knight
                                        Chief Executive Officer

I, Timothy M. Kohl, certify that:

1.   I  have   reviewed   this   quarterly   report   on  Form  10-Q  of  Knight
     Transportation, Inc.;

2.   Based on my knowledge,  this  quarterly  report does not contain any untrue
     statement of a material fact or omit to state a material fact  necessary to
     make the statements  made, in light of the  circumstances  under which such
     statements  were made, not misleading with respect to the period covered by
     this quarterly report;

3.   Based on my  knowledge,  the  financial  statements,  and  other  financial
     information  included  in this  quarterly  report,  fairly  present  in all
     material respects the financial  condition,  results of operations and cash
     flows of the  registrant  as of, and for,  the  periods  presented  in this
     quarterly report;

4.   The  registrant's  other  certifying  officer  and  I are  responsible  for
     establishing and maintaining disclosure controls and procedures (as defined
     in Exchange Act Rules 13a-14 and 15d-14) for the registrant and have:

     a)  designed  such  disclosure  controls  and  procedures  to  ensure  that
         material  information   relating  to  the  registrant,   including  its
         consolidated  subsidiaries,  is made known to us by others within those
         entities, particularly during the period in which this quarterly report
         is being prepared;

     b)  evaluated the effectiveness of the registrant's disclosure controls and
         procedures as of a date within 90 days prior to the filing date of this
         quarterly report (the "Evaluation Date"); and

     c)  presented  in  this  quarterly   report  our   conclusions   about  the
         effectiveness  of the disclosure  controls and procedures  based on our
         evaluation as of the Evaluation Date;

5.   The registrant's  other certifying  officer and I have disclosed,  based on
     our most recent  evaluation,  to the  registrant's  auditors  and the audit
     committee of  registrant's  board of directors (or persons  performing  the
     equivalent function):

     a)  all  significant  deficiencies  in the design or  operation of internal
         controls  which  could  adversely  affect the  registrant's  ability to
         record,   process,   summarize  and  report  financial  data  and  have
         identified  for the  registrant's  auditors any material  weaknesses in
         internal controls; and

     b)  any fraud,  whether or not material,  that involves management or other
         employees  who have a  significant  role in the  registrant's  internal
         controls; and

6.   The  registrant's  other  certifying  officer and I have  indicated in this
     quarterly  report  whether  there  were  significant  changes  in  internal
     controls  or in other  factors  that could  significantly  affect  internal
     controls  subsequent to the date of our most recent  evaluation,  including
     any corrective actions with regard to significant deficiencies and material
     weaknesses.


Date: May 12, 2003                      /s/ Timothy M. Kohl
                                        ----------------------------------------
                                        Timothy M. Kohl
                                        Chief Financial Officer