Frontier Airlines MCO Terminal is one of the busiest and most significant airports in the United States, handling millions of passengers each year. Frontier Airlines, known for its low-cost fares and no-frills service, operates primarily out of Terminal A at MCO, offering travelers a convenient gateway to various destinations across the U.S. and beyond. Whether you’re a frequent flyer or a first-time passenger with Frontier, knowing what to expect at the MCO Terminal can help ensure a smoother journey. Terminal A is home to many domestic and international carriers, making it a central hub for both leisure and business travelers. Within Terminal A, Frontier Airlines occupies a series of gates, allowing passengers to access flights to and from various locations in the U.S. and some international destinations.