Air Transport Services Group, Inc. is a holding company. The Company is a provider of aircraft leasing and air cargo transportation and related services. It operates through two segments: Cargo Aircraft Management, Inc. (CAM) and ACMI Services. The CAM segment includes the leasing of aircraft and aircraft engines. Its freighter fleet is composed primarily of Boeing 767 aircraft. The ACMI Services segment includes the cargo and passenger aircraft flight operations of its three airlines. Its ACMI Services business segment consists of the cargo and passenger operations of its three airline subsidiaries: ABX Air, Inc., Air Transport International, Inc., and Omni Air International, LLC. Its airline is responsible for providing full service, including fuel, aircraft, flight crews, maintenance, aircraft hull and liability insurance, landing fees, parking fees, catering, passenger handling fees, ground and cargo handling expenses and other operating expenses for a fixed, all-inclusive price.