Frontier Airlines JFK Terminal At JFK Airport, Terminal 5 is where Frontier Airlines is located. The JetBlue-managed terminal provides a variety of amenities, such as retail, food options, and lounges, to enhance your travel experience. This terminal houses the Frontier Airlines flight check-in counters and gates. To avoid any lines and to go through security, make sure you arrive early. It is advisable to check the airport's website or the Frontier app for real-time updates on any changes to your flight status. From JFK Terminal 5, enjoy your journey with Frontier Airlines.