Exhibit 31.2

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Quint O. Turner, certify that:

1. I have reviewed this Amendment No. 1 to the quarterly report on Form 10-Q of Air Transport Services Group, Inc.; and

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

Date: March 25, 2011

/s/ QUINT O. TURNER

Quint O. Turner

Chief Financial Officer