KNIGHT TRANSPORTATION INC - FORM 10-K - EX-23.1 - EXHIBIT 23.1 (CONSENT OF DELOITTE & TOUCHE LLP) - March 1, 2010

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10-K - FORM 10-K - KNIGHT TRANSPORTATION INCform10k.htm
EX-31.1 - EXHIBIT 31.1 (SECTION 302 CERTIFICATION - KEVIN P. KNIGHT) - KNIGHT TRANSPORTATION INCexhibit311.htm
EX-21.1 - EXHIBIT 21.1 (SUBSIDIARIES) - KNIGHT TRANSPORTATION INCexhibit211.htm
EX-31.2 - EXHIBIT 31.2 (SECTION 302 CERTIFICATION - DAVID A. JACKSON) - KNIGHT TRANSPORTATION INCexhibit312.htm
EX-32.2 - EXHIBIT 32.2 (SECTION 906 CERTIFICATION - DAVID A. JACKSON) - KNIGHT TRANSPORTATION INCexhibit322.htm
EX-32.1 - EXHIBIT 32.1 (SECTION 906 CERTIFICATION - KEVIN P. KNIGHT) - KNIGHT TRANSPORTATION INCexhibi321.htm
 


Exhibit 23.1


CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-72377, 333-105718, 333-126601, and 333-152756 on Form S-8 of our reports dated March 1, 2010, relating to the financial statements and financial statement schedule of Knight Transportation, Inc. and subsidiaries, and the effectiveness of Knight Transportation, Inc. and subsidiaries' internal control over financial reporting, appearing in this Annual Report on Form 10-K of Knight Transportation, Inc. and subsidiaries for the year ended December 31, 2009.


/s/ Deloitte & Touche LLP


March 1, 2010

Phoenix, Arizona


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