Orlando International Airport's Terminal A is home to Frontier Airlines. If you are wondering, "What terminal is Frontier Airlines at MCO", you’ll find it in Terminal A, which houses boarding gates, security checkpoints, and check-in counters for both domestic and international flights. The journey is made more convenient for travelers by providing easy access to ground transportation, dining options, and shopping from this terminal. Arriving early is always a good idea to avoid the last-minute rush, especially during peak travel hours.