Falls Lewiston Minnesota Minneapolis/St. Paul International Airport Missouri St. Louis Lambert International Airport Montana Billings Logan International Airport – Hub Bozeman Yellowstone International Airport Butte (Bert Mooney Airport) Glasgow Airport Glendive (Dawson Community Airport) Great Falls International Airport Havre City–County Airport Helena Regional Airport Kalispell (Glacier Park International Airport) Lewistown Municipal Airport Miles City Airport Missoula International Airport Sidney (Richland Municipal Airport) Wolf Point (L. M. Clayton Airport) New Mexico Carlsbad Hobbs Roswell International Air Center North Dakota Bismarck Devils Lake Dickinson Grand Forks Jamestown Williston Oklahoma Enid Ponca City Oregon Portland International Airport South Dakota Rapid City Texas Brownwood Dallas/Fort Worth International Airport – Hub Washington Moses Lake (Grant County International Airport) Seattle/Tacoma International Airport Spokane International Airport Walla Walla Olympia Regional Airport Wyoming Casper Gillette Sheridan County Airport Delta Connection Routes: Eastern U.S. and Canada Maine Bangor, Maine Massachusetts Boston, Massachusetts – Hub New Brunswick Fredericton, New Brunswick, Canada New Jersey Trenton, New Jersey New York Albany, New York Long Island/Islip, New York Massena, New York Ogdensburg, New York Plattsburgh, New York Saranac Lake, New York Watertown, New York Ohio Cincinnati, Ohio – Hub Pennsylvania Allentown/Bethlehem/Easton, Pennsylvania Quebec Quebec, Quebec, Canada Vermont Burlington, Vermont Fleet In January 2000, the Big Sky Airlines fleet consisted of 14 Fairchild Swearingen Metroliner Metro III and Metro 23 aircraft. However, the air carrier then removed the Metro propjets from its fleet and in January 2008 was operating Beechcraft 1900D turboprops with 10 aircraft in the fleet: Big Sky previously operated Handley Page Jetstream propjets as well as Cessna prop aircraft during the late 1970s. By 1987, the airline was operating British Aerospace BAe Jetstream 31 propjets on its flights as a Northwest Airlink air carrier. Code share agreements Big Sky had code share agreements with the following airlines. The code share agreements allowed these larger mainline air carriers to place their airline codes on Big Sky flights, but not vice versa. Alaska Airlines Delta Air Lines (as Delta Connection) Northwest Airlines (as Northwest Airlink) US Airways References External links Big Sky Airlines (Archive) Airlines established in 1978 Airlines disestablished in 2008 Billings, Montana Defunct regional airlines of the United States Defunct companies based in Montana Regional Airline Association members 1978 establishments in Montana 2008 disestablishments in Montana Defunct airlines of the United States Airlines based in Montana