Usually using the main terminal, Frontier Airlines is based at Bozeman Yellowstone International Airport (BZN). The airline connects  Frontier Airlines BZN Terminal  Bozeman to important locations throughout the US and specializes in low-cost travel. The central terminal area houses luggage services and check-in facilities, providing passengers with a simplified experience. The fast execution of security screening and boarding guarantees a seamless experience. Because gate assignments might change, travelers on Frontier flights should verify terminal information prior to departure. To allow for check-in and security procedures, arrive early.