Southwest Airlines is based out of New York City's LaGuardia Airport (LGA), Terminal B. This airport is well-appointed Southwest Airlines LGA Terminal with contemporary conveniences, such as a range of eating establishments, shops, and cozy seating places. Whether checking in at the counter or using self-service kiosks, Southwest passengers may experience a seamless experience. There is free Wi-Fi available at the terminal, and security checkpoints are generally effective. Passengers on Southwest should also be aware that Terminal B offers comfortable ground transportation, which facilitates connections to the city and its environs.Southwest Airlines is based out of New York City's LaGuardia Airport (LGA), Terminal.