What Terminal is United Airlines At BOS. This terminal provides a modern and efficient travel experience with a variety of amenities to ensure passenger comfort. Travelers can find a range of dining options, from quick-service cafes to full-service restaurants, as well as numerous shopping outlets for travel essentials and souvenirs. Terminal B is equipped with spacious seating areas, charging stations, and free Wi-Fi to keep passengers connected. Also on board are efficient check-in counters, self-service kiosks, and check-security areas ensuring seamless and hassle-free traveling. United Airlines also grants lounge entry privileges for passengers to its United Club lounge, which avails quiet and comfortable area facilities with complimentary refreshment facilities and workstations for free for qualifying travelers.