Nearest major airport to Big Sky, Montana: The closest major airport to Big Sky, Montana is Bozeman Yellowstone International Airport (BZN / KBZN). This airport is in Bozeman, Montana and is 51 miles from the center of Big Sky, MT. If you're looking for domestic flights to BZN, check the airlines that fly to BZN. Search for direct flights from your hometown and find hotels near Big Sky, MT, or scroll down for more international airports or domestic airports. You can also browse local airports if you're a pilot. NOTE: Big Sky may be a smaller town so be sure to check all locations and airports.