Terminal A of Luis Muñoz Marín International Airport (SJU) is home to the Frontier Airlines SJU Terminal. For travelers flying with Frontier, this terminal offers easy access to boarding gates, quick security checks, and convenient check-in counters. Frontier Airlines, well-known for its inexpensive travel options, provides reasonably priced flights from San Juan to a number of locations throughout the United States. All of the necessities for a comfortable trip are available to travelers. The Frontier Airlines SJU Terminal is a great option for travelers on a tight budget because it guarantees a seamless and effective travel experience.