Knight Transportation to Participate in Stephens Inc. Logistics and Transportation Conference on Wednesday, Nov. 2, 2005

PHOENIX--(BUSINESS WIRE)--Oct. 28, 2005--Knight Transportation Inc. (NYSE: KNX) announced today that it will be participating in the Stephens Inc. Logistics and Transportation Conference at The New York Palace Hotel in New York. Presenting will be Kevin P. Knight, chairman and CEO, and David Jackson, CFO. The presentation will take place Wednesday, Nov. 2, at 3:15 p.m. EST.

Following the presentation, information presented at the conference may be viewed in the shareholder section of the company's Web site, www.knighttrans.com.

The conference presentation may contain forward-looking statements that involve risks, assumptions, and uncertainties that are difficult to predict. Statements that constitute forward-looking statements are usually identified by words such as "anticipates," "believes," "estimates," "projects," "expects," "plans," "intends" or similar expressions. These statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Such statements are based upon the current beliefs and expectations of our management and are subject to significant risks and uncertainties. The following factors, among others, could cause actual results to differ materially from those in forward-looking statements: the risks inherent in entering a new regional market, including but not limited to unfamiliarity with pricing and operational issues; the risk that customer relationships may be difficult to obtain or that we may have to reduce rates to gain customer relationships in the new region; and the risks and uncertainties identified from time to time in our filings with the Securities and Exchange Commission.

Knight Transportation Inc. is a short- to medium-haul truckload carrier headquartered in Phoenix. The company serves most of the United States through its regional operations in Phoenix; Tulare, Calif.; Salt Lake City; Portland, Ore.; Indianapolis; Katy, Texas; Gulfport, Miss.; Charlotte, N.C.; Memphis, Tenn.; Kansas City, Kan.; Atlanta; Denver; Las Vegas; Carlisle, Pa.; Lakeland, Fla.; Chicago; El Paso, Texas; Idaho Falls, Ida.; and Reno, Nev. The company transports general commodities, including consumer goods, packaged foodstuffs, paper products, beverage containers, imported and exported commodities, and refrigerated goods.