Operating out of Boston Logan International Airport’s (BOS) Terminal B is Spirit Airlines. In addition to self-service kiosks, manned counters, and online check-in, this terminal provides easy options for travelers to check in. Free Wi-Fi, lots of charging stations, and a selection of restaurants and retail options are available to visitors. Being early guarantees a seamless security check-in process and gives you plenty of time to explore and utilize the terminal amenities prior to your departure.