Heartland Express (HTLD) 10-Q 2009 Q3 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 September 30, 2009 fully complies with the requirements of 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.

Dated: November 6, 2009                                                                                    By: /s/ John P. Cosaert

John P. Cosaert

Executive Vice President

and Chief Financial Officer