Southwest Airlines BOS Terminal operates from Terminal B at Boston Logan International Airport (BOS). Travelers flying Southwest can check in on Level 2 and access a range of amenities including restaurants, shops, and comfortable seating. Terminal B is designed for efficiency, with clear signage, quick security lines, and easy gate access. Southwest offers domestic flights from BOS to key destinations across the U.S., with its signature free checked bags and no change fees. Whether you’re a frequent flyer or heading out for a weekend trip, Terminal B ensures a convenient and smooth departure with Southwest Airlines.