Spirit Airlines operates out of Terminal A at LaGuardia Airport (LGA), New York. For those wondering What terminal is Spirit Airlines LGA, it’s Terminal A, also known as the Marine Air Terminal. This smaller terminal primarily serves domestic flights, offering a more intimate travel experience compared to the larger terminals at LGA. Passengers can utilize self-service kiosks for quick check-in, and while dining and shopping options are limited, the terminal’s compact size allows for easier navigation. Convenient transportation options, including taxis, shuttles, and ride-sharing services, are available for passengers traveling to and from Terminal A.