Frontier Airlines JFK Terminal At New York City's John F. Kennedy International Airport (JFK), Terminal 1 is home to Frontier Airlines. This terminal, which offers a variety of amenities like dining options, retail, and lounges, acts as the hub for several domestic and international flights. Arrive early if you're flying with Frontier to ensure a smooth check-in and security process. Travelers will find the terminal convenient as it has good access to parking lots and public transportation. Prior to departure, always verify the specifics of your flight and the terminal information for any last-minute modifications.