FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * JOHNSON ROBERT L/AZ   2. Issuer Name and Ticker or Trading Symbol KNIGHT TRANSPORTATION INC [KNGT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) __X__ Other (specify below) Controller (Last) (First) (Middle) 5601 WEST BUCKEYE ROAD 3. Date of Earliest Transaction (Month/Day/Year) 11/10/2004 (Street) PHOENIX, AZ 85043 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock, par value $0.01 per share 11/10/2004   M   2,250 A $ 7.3333 4,500 D   Common Stock, par value $0.01 per share 11/10/2004   M   2,812 A $ 4.2777 7,312 D   Common Stock, par value $0.01 per share 11/10/2004   S   2,012 D $ 24 5,300 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.		SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Employee Stock Option (Right to Buy)

$ 4.2777 (1)

11/10/2004

M

2,812 (1) (6)

(6)

10/13/2010

Common Stock

5,625 (1)

$ 4.2777 (1)

2,813

D

Employee Stock Option (Right to Buy)

$ 7.3333 (2)

11/10/2004

M

2,250 (2) (7)

(7)

09/17/2011

Common Stock

6,750 (2)

$ 7.3333 (2)

4,500

D

Employee Stock Option (Right to Buy)

$ 12.6667 (3)

06/05/2002(3)

J(3)

4,500 (3)

(8)

06/04/2012

Common Stock

4,500 (3)

$ 12.6667 (3)

4,500 (3)

D

Employee Stock Option (Right to Buy)

$ 17.1533 (4)

08/07/2003(4)

J(4)

4,875 (4)

(9)

08/06/2013

Common Stock

4,875 (4)

$ 17.1533 (4)

4,875 (4)

D

Employee Stock Option (Right to Buy)

$ 15.8067 (5)

03/19/2004(5)

J(5)

5,250 (5)

(10)

03/18/2014

Common Stock

5,250 (5)

$ 15.8067 (5)

5,250 (5)

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
JOHNSON ROBERT L/AZ 5601 WEST BUCKEYE ROAD PHOENIX, AZ 85043				Controller

Signatures

/s/ Robert L. Johnson		11/12/2004
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	This option was previously reported as covering 3,750 shares at an exercise price of $ 6.4166 per share, but was adjusted to reflect the 3-for-2 stock split on July 12, 2004.
(2)	This option was previously reported as covering 4,500 shares at an exercise price of $11.00 per share, but was adjusted to reflect the 3-for-2 stock split on July 12, 2004.
(3)	This option was previously reported as covering 3,000 shares at an exercise price of $19.00 per share, but was adjusted to reflect the 3-for-2 stock split on July 12, 2004. The reporting on this Form 4 is to reflect the adjusted number of shares and exercise price; no new options were granted.
(4)	This option was previously reported as covering 3,250 shares at an exercise price of $25.73 per share, but was adjusted to reflect the 3-for-2 stock split on July 12, 2004. The reporting on this Form 4 is to reflect the adjusted number of shares and exercise price; no new options were granted.
(5)	This option was previously reported as covering 3,500 shares at an exercise price of $23.71 per share, but was adjusted to reflect the 3-for-2 stock split on July 12, 2004. The reporting on this Form 4 is to reflect the adjusted number of shares and exercise price; no new options were granted.
(6)	This option is subject to a vesting schedule. 2,812 shares vested on October 13, 2004; the remaining 2,813 shares will vest on October 13, 2005.
(7)	This option is subject to a vesting schedule. 2,250 shares vested on September 18, 2004; the remaining shares will vest in equal annual installments on September 18, 2005, and 2006.
(8)	This option will vest in three equal annual installments on June 5, 2005, 2006, and 2007.
(9)	This option will vest in five equal annual installments on August 7, 2006, 2007, 2008, 2009, and 2010.
(10)	This option will vest in five equal annual installments on March 19, 2007, 2008, 2009, 2010, and 2011.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.