Heartland Express (HTLD) 10-Q 2010 Q2 Quarterly report

Exhibit No. 32.2

CERTIFICATION OF

CHIEF FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, John P. Cosaert, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of Heartland Express, Inc., on Form 10-Q for the period ended June 30, 2010 fully complies with the requirements o f Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and that information contained in such Quarterly Report on Form 10-Q fairly presents in all material respects the financial condition and results of operations of Heartland Express, Inc.

Date:	August 6, 2010	By:	/s/ John P. Cosaert
			John P. Cosaert
			Executive Vice President
			and Chief Financial Officer