A popular airport in Montana is in the running to be named the best small airport in America. The Bozeman Yellowstone International Airport (BZN) in Belgrade, Montana is in the national spotlight once again. Bozeman Yellowstone National Airport Nominated for Best in AmericaBozeman Yellowstone International Airport www.facebook.com/bozemanairport loading... This year, BZN has been nominated for not one but two prestigious categories in the USA TODAY 10Best Readers’ Choice Awards: Best Small Airport and Best Resort Airport. For many travelers, BZN is where the adventure begins, whether it’s skiing Big Sky, exploring Yellowstone, or visiting Bozeman itself.