[6] Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.

Frank Wiley Field covers 1,640 acres (2.56 sq mi; 6.6 km2) at an elevation of 2,630 feet (802 m) above sea level.

Northwest Airlines then served Miles City as one of multiple stops along the carrier's mainline route between Seattle and Chicago from the early 1930s until 1954.

Combs then ended their contract service and Frontier returned in 1971 using de Havilland Canada DHC-6 Twin Otter turboprop aircraft.

Great Lakes Airlines flew from Miles City to Denver with one stop at Gillette, WY using Beech 1900D aircraft from 2008 through mid-2011.