Southwest Airlines is based out of Boston Logan International Airport's Terminal B. Ticketing, baggage claim, and ground transportation are among the passenger services provided by this terminal. Additionally, there are a number of facilities available to passengers, including restaurants, retail stores, and free Wi-Fi in the terminal.
https://airlineterminalservice.....com/southwest-airli

Spirit Airlines provides affordable flights to a number of local and international locations, operating out of Dallas/Fort Worth International Airport (DFW). Spirit Airlines mostly uses Terminal E at DFW, which serves as a hub for a number of low-cost airlines.
https://airlineterminalservice.....com/spirit-airlines