Spirit Airlines operates from Terminal A at George Bush Intercontinental Airport (IAH) in Houston. The Spirit Airlines George Bush Airport Terminal offers efficient check-in counters, security checkpoints, and a range of dining and shopping options. Terminal A primarily serves domestic flights, making it convenient for Spirit’s extensive U.S. network. Passengers can also use the Skyway train system for quick transfers to other terminals. Arriving early ensures a smooth experience at the Spirit Airlines George Bush Airport Terminal for a hassle-free journey.