40-Mile Air is a small regional airline based in Tok, Alaska, providing essential air service to remote communities in interior and eastern Alaska. The carrier operates scheduled and charter flights to villages and towns that are largely inaccessible by road, making it a vital lifeline for residents in these isolated areas. The airline serves destinations including Fairbanks, Dawson City in Canada's Yukon Territory, and numerous small Alaskan communities. It operates under FAA Part 135 regulations and has long served as a critical connector for passengers, mail, and cargo in one of North America's most challenging operating environments. With its IATA code Q5 and ICAO code MLA, 40-Mile Air maintains a modest fleet of small turboprop and piston aircraft suited to the short, often unpaved airstrips found throughout the Alaskan bush.