[1] Federal Aviation Administration records say the airport had 596 passenger boardings (enplanements) in calendar year 2008,[2] 1,049 in 2009 and 704 in 2010.

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

Great Lakes Airlines was given USDOT approval to take over Essential Air Service (EAS)[5] and flights began in 2009.

[6] Lewistown Army Airfield was built in 1942 as one of four training facilities for B-17 Flying Fortress crews and had a storage site for the top secret Norden Bombsight.

Service was briefly suspended in 1970 but returned in 1971 with de Havilland Canada DHC-6 Twin Otter aircraft.

Great Lakes Airlines then served the airport from 2008 through 2011 with direct flights to Denver making a stop at Worland, Wyoming.