<ARTICLE>                     5
<LEGEND>
                              THIS   SCHEDULE    CONTAINS   SUMMARY    FINANCIAL
                              INFORMATION    EXTRACTED    FROM   THE   FINANCIAL
                              STATEMENTS  AS OF June 30,1998 AND IS QUALIFIED IN
                              ITS ENTIRETY BY REFERENCE TO SUCH STATEMENTS
</LEGEND>
<CIK>                                                863557
<NAME>                        SWIFT TRANSPORTATION CO., INC.
<MULTIPLIER>                                          1,000
<CURRENCY>                                       US DOLLARS
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                               DEC-31-1998
<PERIOD-START>                                  JAN-01-1998
<PERIOD-END>                                    JUN-30-1998
<EXCHANGE-RATE>                                           1
<CASH>                                                9,009
<SECURITIES>                                              0
<RECEIVABLES>                                       108,279
<ALLOWANCES>                                              0
<INVENTORY>                                           2,637
<CURRENT-ASSETS>                                    145,015
<PP&E>                                              510,063
<DEPRECIATION>                                      122,213
<TOTAL-ASSETS>                                      387,850
<CURRENT-LIABILITIES>                                77,200
<BONDS>                                                   0
<PREFERRED-MANDATORY>                                     0
<PREFERRED>                                               0
<COMMON>                                                 43
<OTHER-SE>                                          299,544
<TOTAL-LIABILITY-AND-EQUITY>                        543,411
<SALES>                                             407,440
<TOTAL-REVENUES>                                    407,440
<CGS>                                                     0
<TOTAL-COSTS>                                       365,418
<OTHER-EXPENSES>                                       (399)
<LOSS-PROVISION>                                          0
<INTEREST-EXPENSE>                                    3,013
<INCOME-PRETAX>                                      39,408
<INCOME-TAX>                                         15,960
<INCOME-CONTINUING>                                  23,448
<DISCONTINUED>                                            0
<EXTRAORDINARY>                                           0
<CHANGES>                                                 0
<NET-INCOME>                                         23,448
<EPS-PRIMARY>                                           .55
<EPS-DILUTED>                                           .54