Spirit Airlines operates out of Terminal A at George Bush Intercontinental Airport (IAH) in Houston. Terminal A is a modern facility with various amenities, including dining options, retail shops, and comfortable seating areas. Spirit’s check-in counters are located prominently within this terminal, with self-service kiosks available for quicker check-ins. After checking in, passengers proceed through an efficient security screening process. The terminal features clear signage to guide you to your departure gate. For connecting flights, Terminal A is linked to other terminals via the AirTrain system, ensuring smooth and convenient transfers within the airport.