United Airlines operates primarily from Terminal B at Boston Logan International Airport (BOS). This terminal, often referred to as the United Airlines Boston Logan Airport Terminal, is well-equipped with modern amenities, including dining options, shops, and comfortable seating areas. Passengers can enjoy efficient check-in counters and streamlined security procedures, ensuring a hassle-free travel experience. Terminal B also provides easy access to United Club lounges for eligible travelers, offering a quiet and relaxing space. With its convenient location and services, United Airlines ensures a smooth journey for passengers flying from or through Boston Logan Airport.