what terminal is southwest airlines at jfk operate flights out of John F. Kennedy International Airport (JFK) in New York. Instead, Southwest primarily serves the New York City area through nearby airports, such as LaGuardia Airport (LGA) and Newark Liberty International Airport (EWR). If you’re looking to fly Southwest, you will need to check these alternative airports for their terminal information and available flights. For the latest details and updates on flight operations, it’s always best to visit the official Southwest Airlines website or contact their customer service.