Montrose Regional Airport is a non-towered public airport on the northwest side of Montrose, in zip code 81401 in southwestern Colorado. Its two runways are at elevation 5,759 feet. MTJ covers 966 acres of land. Monarch Airlines started flying to Montrose in the 1940s. Successor Frontier Airlines flew to the present airport since the 1950s; the first jets were Frontier Boeing 737-200s in 1982. Earlier, Frontier flew Convair 580s between Montrose and Denver.