SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C. 20549-1004

                       ----------------------------------

                                    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, 1998

                                       or

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

                         Commission File Number 0-18605


                         Swift Transportation Co., Inc.
             (Exact name of registrant as specified in its charter)

                  Nevada                                     86-0666860
(State or other jurisdiction of                  (I.R.S. employer identification
 incorporation or organization)                               number)

                             2200 South 75th Avenue
                                Phoenix, AZ 85043
                                 (602) 269-9700


               (Address, including zip code, and telephone number,
        including area code, of registrant's principal executive office)


         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 the
filing requirements for at least the past 90 days.

                                    YES X NO
                                       ---  ---

         Indicate  the  number of  shares  outstanding  of each of the  issuer's
classes of common stock, as of the latest practicable date (May 5, 1998)

                Common stock, $.001 par value: 42,706,950 shares

                                                        Exhibit Index at page 14
                                                                  Total pages 17

                                     PART I



                              FINANCIAL INFORMATION

                                                                           Page
                                                                          Number
Item 1.           Financial statements

                  Condensed consolidated balance sheets
                      as of March 31, 1998 (unaudited) and
                      December 31, 1997                                    3 - 4

                  Condensed consolidated statements of
                       earnings (unaudited) for the three month
                       periods ended March 31, 1998 and 1997                   5

                  Condensed consolidated statements of cash
                       flows (unaudited) for the three month
                       periods ended March 31, 1998 and 1997               6 - 7

                  Notes to condensed consolidated financial
                       statements                                              8


Item 2.           Management's discussion and analysis of
                       financial condition and results of
                       operations                                         9 - 13



                                     PART II

                                OTHER INFORMATION



Items 1, 2,
3, 4 and 5.       Not applicable


Item 6.           Exhibits and Reports on Form 8-K                            14
                                        2

                  SWIFT TRANSPORTATION CO., INC. & SUBSIDIARIES

                      Condensed Consolidated Balance Sheets
                                 (In thousands)

                                                        March 31,   December 31,
                                                          1998         1997
                                                        --------    --------
                                                       (unaudited)

         Assets
         ------

Current assets:
     Cash                                               $  9,165    $  5,726
     Accounts receivable, net                             96,530      92,587
     Equipment sales receivables                           4,566       3,284
     Inventories and supplies                              4,478       4,509
     Prepaid taxes, licenses and insurance                13,224       5,090
     Assets held for sale                                  5,468       5,468
     Deferred income taxes                                 5,639       5,280
                                                        --------    --------
         Total current assets                            139,070     121,944
                                                        --------    --------

Property and equipment, at cost:
     Revenue and service equipment                       393,858     366,223
     Land                                                  7,730       7,520
     Facilities and improvements                          68,468      62,760
     Furniture and office equipment                       15,171      13,949
                                                        --------    --------
          Total property and equipment                   485,227     450,452
     Less accumulated depreciation and amortization      119,837     111,917
                                                        --------    --------
           Net property and equipment                    365,390     338,535

Other assets                                               2,039       1,976
Goodwill                                                   8,490       8,679
                                                        --------    --------

                                                        $514,989    $471,134
                                                        ========    ========

See accompanying notes to condensed consolidated financial statements.
                                        3

                  SWIFT TRANSPORTATION CO., INC. & SUBSIDIARIES

                Condensed Consolidated Balance Sheets (continued)
                        (In thousands, except share data)


                                                               March 31, December 31,
                                                                 1998       1997
                                                               --------   --------
                                                             (unaudited)

Liabilities and Stockholders' Equity
- ------------------------------------
                                                                         
Current liabilities:
     Accounts payable                                          $ 17,535   $ 14,469
     Accrued liabilities                                         29,384     20,177
     Current portion of claims accruals                          17,359     16,281
     Current portion of long-term debt                            5,988      6,849
                                                               --------   --------
         Total current liabilities                               70,266     57,776
                                                               --------   --------

Borrowings under line of credit                                  76,000     56,500
Long-term debt, less current portion                             16,175     16,920
Claims accruals, less current portion                            22,663     21,343
Deferred income taxes                                            45,870     44,420

Stockholders' equity:
     Preferred stock, par value $.001 per share 
          Authorized 1,000,000 shares; none issued                 --         --
     Common stock, par value $.001 per share 
          Authorized 75,000,000 shares; issued
          42,967,710 and 42,793,557 shares at
          March 31, 1998 and December 31, 1997, respectively         43         43
     Additional paid-in capital                                 116,569    116,141
     Retained earnings                                          170,819    161,407
                                                               --------   --------
                                                                287,431    277,591
     Less treasury stock, at cost (331,050 shares)                3,416      3,416
                                                               --------   --------
                  Net stockholders' equity                      284,015    274,175
                                                               --------   --------

Commitments and contingencies                                  --------   --------
                                                               $514,989   $471,134
                                                               ========   ========

See accompanying notes to condensed consolidated financial statements.
                                        4

                  SWIFT TRANSPORTATION CO., INC. & SUBSIDIARIES

                  Condensed Consolidated Statements of Earnings
                                   (unaudited)
                        (In thousands, except share data)

                                                             Three months
                                                            ended March 31,
                                                          1998           1997
                                                       ---------      ---------

Operating revenue                                      $ 191,608      $ 156,074
Operating expenses:
     Salaries, wages and employee  benefits               69,187         55,282
     Operating supplies and expenses                      17,522         14,271
     Fuel                                                 22,603         22,368
     Purchased transportation                             29,396         20,346
     Rental expense                                       10,033         11,550
     Insurance and claims                                  5,887          5,063
     Depreciation and amortization                        11,078          8,507
     Communication and utilities                           2,718          2,393
     Operating taxes and licenses                          6,248          5,171
                                                       ---------      ---------
         Total operating expenses                        174,672        144,951
                                                       ---------      ---------
         Operating income                                 16,936         11,123
                                                       ---------      ---------

Other (income) expenses:
     Interest expense                                      1,338            813
     Interest income                                         (56)           (65)
     Other                                                  (163)          (106)
                                                       ---------      ---------
         Other (income) expenses, net                      1,119            642
                                                       ---------      ---------
         Earnings before income taxes                     15,817         10,481
Income taxes                                               6,405          4,250
                                                       ---------      ---------
         Net earnings                                  $   9,412      $   6,231
                                                       =========      =========


Basic earnings per share                               $     .22      $     .15
                                                       =========      =========

Diluted earnings per share                             $     .22      $     .14
                                                       =========      =========

See accompanying notes to condensed consolidated financial statements.
                                        5

                  SWIFT TRANSPORTATION CO., INC. & SUBSIDIARIES

                 Condensed Consolidated Statements of Cash Flows
                                   (unaudited)
                                 (In thousands)


                                                                  Three months
                                                                 ended March 31,
                                                                1998        1997
                                                              --------    --------
                                                                         
Cash flows from operating activities:
     Net earnings                                             $  9,412    $  6,231
     Adjustments to reconcile net earnings
          to net cash provided by operating activities:
     Depreciation and amortization                              10,119       8,507
     Deferred income taxes                                       1,091         754
     Provision for losses on accounts receivable                    90          60
     Amortization of deferred compensation                          48           9
     Change in assets and liabilities:
          Increase in accounts receivable                       (3,792)     (4,543)
          Decrease  in inventories and supplies                     31         422
          Increase in prepaid expenses                          (8,134)     (8,378)
          Increase in other assets                                 (94)       (712)
          Increase in accounts payable, accrued liabilities
               and claims accruals                              14,671       6,633
                                                              --------    --------
         Net cash provided by operating activities              23,442       8,983
                                                              --------    --------

Cash flows from investing activities:
     Proceeds from sale of property and equipment               10,175       1,150
     Capital expenditures                                      (51,059)    (21,217)
     Payments received on equipment sales receivables            3,284         390
                                                              --------    --------
         Net cash used in investing activities                 (37,600)    (19,677)
                                                              --------    --------

See accompanying notes to condensed consolidated financial statements
                                        6

                  SWIFT TRANSPORTATION CO., INC. & SUBSIDIARIES

           Condensed Consolidated Statements of Cash Flows (continued)
                                   (unaudited)
                                 (In thousands)

                                                               Three  months
                                                              ended March 31,
                                                             1998        1997
                                                           --------    --------

Cash flows from financing activities:
     Repayments of long-term debt                          $ (2,042)   $ (4,756)
     Increase in borrowings under line of credit             19,500      19,000
     Payment of stock split fractional shares                   (21)
     Proceeds from issuance of common stock
         under stock option plan                                160         282
                                                           --------    --------
         Net cash provided by financing activities           17,597      14,526
                                                           --------    --------

Net increase in cash                                          3,439       3,832
Cash at beginning of period                                   5,726       1,210
                                                           --------    --------
Cash at end of period                                      $  9,165    $  5,042
                                                           ========    ========

Supplemental  disclosure of cash flow  information:
     Cash paid during the period for:
     Interest                                              $  1,291    $    826
     Income taxes                                          $  2,630    $  4,633

Supplemental schedule of noncash investing and
     financing activities:
     Equipment sales receivables                           $  4,566    $  4,213
     Direct financing for purchase of equipment            $    436

See accompanying notes to condensed consolidated financial statements
                                        7

                  SWIFT TRANSPORTATION CO., INC. & SUBSIDIARIES

              Notes to Condensed Consolidated Financial Statements
                                   (unaudited)

Note 1.       Basis of Presentation

              The  condensed   consolidated  financial  statements  include  the
              accounts  of Swift  Transportation  Co.,  Inc.,  a Nevada  holding
              company,  and its  wholly-owned  subsidiaries  (the Company).  All
              significant  intercompany  balances  and  transactions  have  been
              eliminated.

              The financial  statements  have been  prepared in accordance  with
              generally accepted  accounting  principles,  pursuant to rules and
              regulations  of the  Securities  and Exchange  Commission.  In the
              opinion  of  management,  the  accompanying  financial  statements
              include  all   adjustments   which  are   necessary   for  a  fair
              presentation  of the results for the  interim  periods  presented.
              Certain  information and footnote  disclosures have been condensed
              or omitted pursuant to such rules and regulations. These condensed
              consolidated financial statements and notes thereto should be read
              in  conjunction  with the  consolidated  financial  statements and
              notes thereto included in the Company's Annual Report on Form 10-K
              for the year ended  December 31, 1997.  Results of  operations  in
              interim  periods are not  necessarily  indicative of results to be
              expected for a full year.

Note 2.       Contingencies

              The Company is involved in certain  claims and pending  litigation
              arising from the normal course of business. Based on the knowledge
              of the facts and, in certain cases,  opinions of outside  counsel,
              management   believes  the   resolution   of  claims  and  pending
              litigation  will  not  have  a  material  adverse  effect  on  the
              financial condition of the Company.

Note 3.       Stock Split

              On February 20, 1998, the Company's Board of Directors  approved a
              3-for-2 stock split  effected in the form of a stock  dividend and
              payable  on March 12,  1998 to the  stockholders  of record at the
              close of  business  on March 2,  1998.  All share  amounts,  share
              prices and earnings per share have been retroactively  adjusted to
              reflect this 3-for-2 stock split.
                                        8

                  SWIFT TRANSPORTATION CO., INC. & SUBSIDIARIES

           MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                            AND RESULTS OF OPERATIONS


Forward-Looking Statements

This  Report  on  Form  10-Q  contains  forward-looking  statements.  The  words
"believe,"  "expect,"  "anticipate,"  and  "project,"  and  similar  expressions
identify  forward-looking  statements,  which  speak  only  as of the  date  the
statement was made.  Such  forward-looking  statements are within the meaning of
that term in Section 27A of the Securities Act of 1933, as amended,  and Section
21E of the  Securities  Exchange Act of 1934, as amended.  Such  statements  may
include,  but are not limited to,  projections  of  revenues,  income,  or loss,
capital expenditures, plans for future operations, financing needs or plans, the
impact of inflation and plans relating to the foregoing.

Statements  in  Exhibit  99 to this  Quarterly  Report  on Form  10-Q and in the
Company's  Annual  Report  on Form  10-K,  including  Notes to the  Consolidated
Financial  Statements  and  "Management's  Discussion  and Analysis of Financial
Condition and Results of Operations," describe factors, among others, that could
contribute  to or cause such  differences.  Additional  factors that could cause
actual results to differ materially from those expressed in such forward-looking
statements are set forth in "Business" and "Market for the  Registrant's  Common
Stock and Related  Stockholder  Matters" in the Company's  Annual Report on Form
10-K.


Overview

Although the trend in the truckload  segment of the motor carrier  industry over
the past several years has been towards  consolidation,  the truckload  industry
remains  highly  fragmented.  Management  believes  the industry  trend  towards
financially  stable  "core  carriers"  will  continue  and  result in  continued
industry  consolidation.  In response to this trend,  the Company  continues  to
expand its fleet with an  increase  of 1,081  tractors  to 6,056  tractors as of
March 31,  1998,  up from 4,975  tractors as of March 31,  1997.  This net fleet
growth  was  accomplished  through a  combination  of  internal  growth  and the
acquisition  in April  1997 of 565  tractors  from  various  lessors  of  Direct
Transit,  Inc. The owner operator  portion of the Company's  fleet  increased to
1,028 as of March 31, 1998 from 721 as of March 31, 1997.


Results of Operations


Operating  revenue  increased  $35.5 million or 22.8% to $191.6  million for the
three  months  ended March 31, 1998 from  $156.1  million for the  corresponding
period of 1997. The increase in operating revenue is primarily the result of the
expansion of the Company's  fleet,  including the Direct Transit,  Inc.  revenue
equipment acquired in April 1997. The Company's freight rates
                                        9

increased by  approximately  2.5% in the first  quarter of 1998  compared to the
first quarter of 1997.


The Company's  operating ratio (operating  expenses expressed as a percentage of
operating  revenue) for the first quarter of 1998 was 91.2% compared to 92.9% in
the  comparable  period of 1997. The Company's  operating  revenue and operating
ratio for the three months ended March 31, 1998 improved as a result of stronger
shipper  demand in January and February,  improvement  in driver  recruiting and
turnover,  and  reduced  fuel  expenses.  The  Company's  empty mile  factor for
linehaul  operations was 14.1% and 14.3% and average loaded linehaul revenue per
mile was $1.32 and $1.30 in the first  quarter  of 1998 and 1997,  respectively.
Significant  differences in the components of operating expenses as a percentage
of operating revenue are explained below.

Salaries, wages and employee benefits represented 36.1% of operating revenue for
the three months ended March 31, 1998 compared with 35.4% in 1997.  The increase
is primarily due to an increase in the accrual for the Company's  profit sharing
contribution and normal wage increases and associated benefits and taxes.

From time to time the industry has experienced  shortages of qualified  drivers.
If such a shortage were to occur over a prolonged period and increases in driver
pay rates were to occur in order to attract and retain  drivers,  the  Company's
results  of  operations  would  be  negatively   impacted  to  the  extent  that
corresponding rate increases were not obtained.

Fuel as a  percentage  of operating  revenue was 11.8% for the first  quarter of
1998 versus 14.3% in 1997.  This decrease is partially due to an increase in the
number of owner  operators who are  responsible for their own fuel. In addition,
actual fuel cost per gallon  decreased by  approximately  18 cents per gallon in
the first  quarter of 1998 versus the first  quarter of 1997.  This  decrease in
cost per gallon  resulted in an  approximately  $2.0  million  reduction in fuel
surcharge  revenue in the first quarter of 1998 compared to the first quarter of
1997. This reduction in fuel surcharge revenue reduced the decrease in fuel as a
percentage of operating revenue.

Increases  in fuel  costs,  to the extent not offset by rate  increases  or fuel
surcharges,  could have an adverse effect on the operations and profitability of
the Company. Management believes the most effective protection against fuel cost
increases is to maintain a fuel efficient fleet and to implement fuel surcharges
when such option is necessary and available.  The Company currently does not use
derivative-type hedging products but is currently evaluating the possible use of
these products.

Purchased  transportation as a percentage of operating revenue was 15.3% for the
three months ended March 31, 1998 compared to 13.0% in 1997. The increase is due
to the growth of the owner operator fleet to 1,028 as of March 31, 1998 from 721
as of March 31, 1997.

Rental  expense as a  percentage  of  operating  revenue  was 5.2% for the first
quarter of 1998 versus 7.4% in 1997. At March 31, 1998 and 1997, leased tractors
represented 54% and 62%,  respectively,  of the total fleet of Company tractors.
When it is  economically  advantageous  to do so, the Company will purchase then
sell  tractors  that it  currently  leases by  exercising  the  purchase  option
contained in the lease. Gains on these activities are recorded as a reduction of
rent expense. The Company
                                       10

recorded  $971,000  in the first  quarter  of 1998 and no gain  during the first
quarter of 1997 from the sale of leased tractors.

Depreciation and amortization  expense as a percentage of operating  revenue was
5.8% in the first  quarter of 1998  versus 5.5% in 1997.  The  Company  includes
gains and losses from the sale of owned revenue  equipment in  depreciation  and
amortization  expense.  During the three month period ended March 31, 1998,  net
gains from the sale of revenue equipment  reduced  depreciation and amortization
expense by  approximately  $809,000  compared to  approximately  $875,000 in the
first  quarter of 1997.  Exclusive  of gains,  which  reduced  depreciation  and
amortization  expense,  the  percentage in the first quarter of 1998 and 1997 to
operating revenue was 6.2% and 6.0%,  respectively.  The increase in 1998 is due
to an increase in the number of tractors and trailers owned.

Insurance and claims expense  represented 3.1% and 3.2% of operating  revenue in
the  first  quarter  of 1998 and 1997,  respectively.  The  Company's  insurance
program for liability,  physical damage and cargo damage involves self-insurance
with varying risk  retention  levels.  Claims in excess of these risk  retention
levels are covered by insurance in amounts which management  considers adequate.
The  Company  accrues the  estimated  cost of the  uninsured  portion of pending
claims.  These accruals are estimated  based on  management's  evaluation of the
nature and  severity  of  individual  claims and an  estimate  of future  claims
development based on historical claims development trends.

Interest  expense  increased  to  $1,338,000  in the first  quarter of 1998 from
$813,000 in 1997. This increase is due to a higher debt level.

Liquidity and Capital Resources

The continued growth in the Company's business requires  significant  investment
in new  revenue  equipment,  upgraded  and  expanded  facilities,  and  enhanced
computer  hardware and  software.  The funding for this  expansion has been from
cash  provided  by  operating  activities,  proceeds  from the  sale of  revenue
equipment,  long-term debt,  borrowings on the Company's line of credit, the use
of operating  leases to finance the  acquisition  of revenue  equipment and from
periodic public offerings of common stock.

Net cash provided by operating  activities  was $23.4 million in the first three
months of 1998  compared to $9.0  million in 1997.  The  increase  is  primarily
attributable to increased  earnings and depreciation and an increase in accounts
payable, accrued liabilities and claims accruals.

Prepaid  expenses  increased by $8.1 million from December 31, 1997 to March 31,
1998. The increase is primarily due to significant annual license fees which are
prepaid in the first  quarter of each year and  amortized  over the remainder of
the year.

Net cash used in investing  activities  increased to $37.6  million in the first
three months of 1998 from $19.7  million in 1997.  The increase is due primarily
to more capital expenditures in 1998 offset in part by greater proceeds from the
sale of property and equipment.
                                       11

As of March 31,  1998,  the  Company  had  commitments  outstanding  to  acquire
replacement and additional revenue equipment for approximately $141 million. The
Company  has the option to cancel  such  commitments  upon 60 days  notice.  The
Company  believes  it has the  ability to obtain  debt and lease  financing  and
generate  sufficient  cash  flows from  operating  activities  to support  these
acquisitions of revenue equipment.

During the first  quarter  of 1998,  the  Company  incurred  approximately  $7.4
million of non-revenue equipment capital  expenditures.  These expenditures were
primarily for facilities and equipment.

The Company anticipates that it will expend approximately $28 million during the
remainder  of the year for  various  facilities  upgrades  and  acquisition  and
development of terminal facilities.  Factors such as costs and opportunities for
future terminal expansions may change the amount of such expenditures.

The funding for capital  expenditures has been and will be from a combination of
cash provided by operating  activities,  amounts  available  under the Company's
line of credit and debt and lease  financing.  The  availability  of capital for
revenue equipment and other capital  expenditures will be affected by prevailing
market  conditions  and  the  Company's   financial  condition  and  results  of
operations.

Net cash provided by financing activities amounted to $17.6 million in the first
quarter of 1998  compared to $14.5  million in 1997.  This increase is primarily
due to a decrease in repayments of long term debt.

Management  believes it will be able to finance  its needs for working  capital,
facilities  improvements  and expansion,  as well as  anticipated  fleet growth,
through a combination of revenue equipment purchases and strategic acquisitions,
as  opportunities  become  available,  with cash flows from  future  operations,
borrowings  available  under  the line of  credit  and with  long-term  debt and
operating lease financing  believed to be available to finance revenue equipment
purchases.  Over the long term,  the Company will  continue to have  significant
capital  requirements,   which  may  require  the  Company  to  seek  additional
borrowings  or equity  capital.  The  availability  of debt  financing or equity
capital  will  depend  upon the  Company's  financial  condition  and results of
operations  as well as  prevailing  market  conditions,  the market price of the
Company's common stock and other factors over which the Company has little or no
control.


Inflation

Inflation can be expected to have an impact on the Company's  operating costs. A
prolonged period of inflation would cause interest rates,  fuel, wages and other
costs to increase and would adversely affect the Company's results of operations
unless freight rates could be increased correspondingly.  However, the effect of
inflation has been minimal over the past three years.
                                       12

Seasonality

In the transportation industry,  results of operations generally show a seasonal
pattern as customers  reduce  shipments  after the winter  holiday  season.  The
Company's  operating  expenses  also  tend to be  higher  in the  winter  months
primarily  due to colder  weather  which  causes  higher fuel  consumption  from
increased idle time.
                                       13

                  SWIFT TRANSPORTATION CO., INC. & SUBSIDIARIES

                            PART II OTHER INFORMATION



Items 1, 2, 3, 4 and 5.    Not applicable

Item 6.                    Exhibits and reports on Form 8-K

                           (a)      Exhibit 11 - Schedule of  Computation of Net
                                    Earnings Per Share

                                    Exhibit 27 - Financial Data Schedule

                                    Exhibit 99 - Private  Securities  Litigation
                                    Reform  Act of 1995 Safe  Harbor  Compliance
                                    Statement for Forward-Looking Statements

                           (b)      No  Current  Reports  on Form 8-K were filed
                                    during  the  three  months  ended  March 31,
                                    1998.




                                    SIGNATURE


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


                         Swift Transportation Co., Inc.





Date: May 7, 1998                       /s/ William F. Riley III
                                        ----------------------------------------
                                                       (Signature)

                                                   William F. Riley III
                                                  Chief Financial Officer
                                       14