Southwest Airlines Miami Airport Terminal.operates out of Terminal H at Miami International Airport. This modern terminal offers passengers a convenient and efficient travel experience with easy access to amenities. Southwest Airlines passengers can expect streamlined check-in and security procedures, comfortable waiting areas, and a variety of dining and shopping options. With its central location within the airport, Terminal H provides seamless connections to Southwest's extensive domestic and international flight network. Whether travelers are heading to destinations across the United States or beyond, Southwest Airlines at Miami Airport Terminal H ensures a smooth journey from check-in to boarding.