What Terminal is Spirit Airlines at MCO? Spirit Airlines operates from Terminal A at Orlando International Airport (MCO). If you're flying with Spirit, you'll find their check-in counters and gates conveniently situated in this terminal. Known for offering budget-friendly fares, Spirit Airlines provides a no-frills travel experience, making it a popular option for those looking to save on airfare. At MCO, Terminal A ensures a smooth check-in process and easy access to security checkpoints. It's a good idea to arrive early, especially during busy travel periods, to give yourself enough time for check-in and security. Wishing you safe travels with Spirit Airlines.