The North and South Concourses of Spirit Airlines BOS Terminal are the two areas dedicated to domestic travel. Spirit Airlines makes use of the South Concourse, which has a number of passenger amenities. These consist of eating establishments, shops, and amenities like charging stations and free WiFi. Travelers on Spirit Airlines should anticipate that the terminal will include all the amenities required for a hassle-free journey, such as baggage claim spaces, security checkpoints, and check-in counters. Arriving at the airport well in advance of your planned departure time is advised because Terminal B can get crowded with passengers, especially during rush hour.