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



                                    FORM 8-K

                                 CURRENT REPORT
     Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

                Date of Report (Date of earliest event reported):
                                October 15, 2003



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



      Arizona                        000-24946                   86-0649974
(State or other jurisdiction  (Commission File Number)        (I.R.S. Employer
      of incorporation)                                      Identification No.)




     5601 W. Buckeye Road, Phoenix, Arizona           85043
    (Address of principal executive offices)        (Zip Code)


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


                                 Not applicable
          (Former name or former address, if changed since last report)





<PAGE>



Item 1.           Changes in Control of Registrant.

                  Not applicable.

Item 2.           Acquisition or Disposition of Assets.

                  Not applicable.

Item 3.           Bankruptcy or Receivership.

                  Not applicable.

Item 4.           Changes in Registrant's Certifying Accountant.

                  Not applicable.

Item 5.           Other Events and Regulation FD Disclosure.

                  Not applicable.

Item 6.           Resignations of Registrant's Directors.

                  Not applicable.

Item 7.           Financial Statements and Exhibits.

                  (c) Exhibits.

                  EXHIBIT
                  NUMBER            EXHIBIT TITLE
-------------------------------------------------------------------------------
                  99.1  Knight Transportation, Inc. press release announcing
                        financial results for the quarter and nine months ended
                        September 30, 2003

Item 8.           Change in Fiscal Year.

                  Not applicable.

Item 9.           Regulation FD Disclosure.

                  Not applicable.

Item 10.          Amendments to the Registrant's Code of Ethics, or Waiver of a
                  Provision of the Code of Ethics.

                  Not applicable.


<PAGE>
Item 11.          Temporary Suspension of Trading Under Registrant's Employee
                  Benefit Plans.

                  Not applicable.

Item 12. Results of Operations and Financial Condition.

     On Wednesday,  October 15, 2003,  Knight  Transportation,  Inc., an Arizona
corporation  (the  "Company"),  issued a press  release  (the  "Press  Release")
announcing its financial results for the quarter and nine months ended September
30,  2003.  A copy of the Press  Release is  attached  to this report as Exhibit
99.1.

     The  information  contained in this report and the exhibit hereto shall not
be deemed "filed" for purposes of Section 18 of the  Securities  Exchange Act of
1934,  as amended (the  "Exchange  Act"),  or  incorporated  by reference in any
filing under the Securities Act of 1933, as amended, or the Exchange Act, except
as shall be expressly set forth by specific reference in such a filing.

     The  information  in  this  report  and  the  exhibit  hereto  may  contain
"forward-looking   statements"   that  are  made  pursuant  to  the  safe-harbor
provisions of the Private Securities Litigation Reform Act of 1995 and otherwise
may be  protected.  Such  statements  are made based on the current  beliefs and
expectations  of the Company's  management and are subject to significant  risks
and  uncertainties.   Actual  results  may  differ  from  those  anticipated  by
forward-looking statements.  Please refer to the Company's Annual Report on Form
10-K  and  other  filings  with  the  Securities  and  Exchange  Commission  for
information  concerning  risks,  uncertainties and other factors that may affect
future results.



<PAGE>



                                    SIGNATURE

      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 hereunto duly authorized.


                                       KNIGHT TRANSPORTATION, INC.


Date: October 16, 2003                 /s/ Timothy M. Kohl
                                       -------------------
                                       Timothy M. Kohl
                                       Executive Vice President, Secretary, and
                                       Chief Financial Officer


<PAGE>


                                  EXHIBIT INDEX

99.1     Knight Transportation, Inc. press release announcing financial results
         for the quarter and nine months ended September 30, 2003
[{"type": "8-K", "sequence": "1", "filename": "knight8-koct03.txt", "description": "KNIGHT TRANSPORTATION, INC. FORM 8-K", "secsgml_size_bytes": 5008}]
{"company-data": {"conformed-name": "KNIGHT TRANSPORTATION INC", "cik": "0000929452", "assigned-sic": "4213", "irs-number": "860649974", "state-of-incorporation": "AZ", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-24946", "film-number": "03943448"}, "business-address": {"street1": "5601 W BUCKEYE RD", "city": "PHOENIX", "state": "AZ", "zip": "85043", "phone": "6022692000"}, "mail-address": {"street1": "5601 W BUCKEYE RD", "city": "PHOENIX", "state": "AZ", "zip": "85043"}}
UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT
     Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

                Date of Report (Date of earliest event reported):
                                October 15, 2003

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

      Arizona                        000-24946                   86-0649974
(State or other jurisdiction  (Commission File Number)        (I.R.S. Employer
      of incorporation)                                      Identification No.)

     5601 W. Buckeye Road, Phoenix, Arizona           85043
    (Address of principal executive offices)        (Zip Code)

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

                                 Not applicable
          (Former name or former address, if changed since last report)
Item 1.           Changes in Control of Registrant.

                  Not applicable.

Item 2.           Acquisition or Disposition of Assets.

                  Not applicable.

Item 3.           Bankruptcy or Receivership.

                  Not applicable.

Item 4.           Changes in Registrant's Certifying Accountant.

                  Not applicable.

Item 5.           Other Events and Regulation FD Disclosure.

                  Not applicable.

Item 6.           Resignations of Registrant's Directors.

                  Not applicable.

Item 7.           Financial Statements and Exhibits.

                  (c) Exhibits.

                  EXHIBIT
                  NUMBER            EXHIBIT TITLE
-------------------------------------------------------------------------------
                  99.1  Knight Transportation, Inc. press release announcing
                        financial results for the quarter and nine months ended
                        September 30, 2003

Item 8.           Change in Fiscal Year.

                  Not applicable.

Item 9.           Regulation FD Disclosure.

                  Not applicable.

Item 10.          Amendments to the Registrant's Code of Ethics, or Waiver of a
                  Provision of the Code of Ethics.

                  Not applicable.
Item 11.          Temporary Suspension of Trading Under Registrant's Employee
                  Benefit Plans.

                  Not applicable.

Item 12. Results of Operations and Financial Condition.

     On Wednesday,  October 15, 2003,  Knight  Transportation,  Inc., an Arizona
corporation  (the  "Company"),  issued a press  release  (the  "Press  Release")
announcing its financial results for the quarter and nine months ended September
30,  2003.  A copy of the Press  Release is  attached  to this report as Exhibit
99.1.

     The  information  contained in this report and the exhibit hereto shall not
be deemed "filed" for purposes of Section 18 of the  Securities  Exchange Act of
1934,  as amended (the  "Exchange  Act"),  or  incorporated  by reference in any
filing under the Securities Act of 1933, as amended, or the Exchange Act, except
as shall be expressly set forth by specific reference in such a filing.

     The  information  in  this  report  and  the  exhibit  hereto  may  contain
"forward-looking   statements"   that  are  made  pursuant  to  the  safe-harbor
provisions of the Private Securities Litigation Reform Act of 1995 and otherwise
may be  protected.  Such  statements  are made based on the current  beliefs and
expectations  of the Company's  management and are subject to significant  risks
and  uncertainties.   Actual  results  may  differ  from  those  anticipated  by
forward-looking statements.  Please refer to the Company's Annual Report on Form
10-K  and  other  filings  with  the  Securities  and  Exchange  Commission  for
information  concerning  risks,  uncertainties and other factors that may affect
future results.
SIGNATURE

      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 hereunto duly authorized.

                                       KNIGHT TRANSPORTATION, INC.

Date: October 16, 2003                 /s/ Timothy M. Kohl
                                       -------------------
                                       Timothy M. Kohl
                                       Executive Vice President, Secretary, and
                                       Chief Financial Officer
EXHIBIT INDEX

99.1     Knight Transportation, Inc. press release announcing financial results
         for the quarter and nine months ended September 30, 2003