Delta Air Lines passengers flying into or out of Boston Logan International Airport often ask what terminal is Delta BOS to plan their travel with confidence; fortunately, most Delta operations at BOS are consolidated in Terminal A, where the airline’s check-in counters, baggage services, TSA security checkpoints, and Delta Sky Club lounge are all conveniently located under one roof. With clear signage guiding you from the airport entrance to the spacious, modern Terminal A departures hall, you’ll find self-service kiosks, staffed counters, and dedicated Blue Route shuttle stops just outside for seamless connections to other terminals. Whether you’re arriving on a domestic flight or gearing up for an international journey, knowing what terminal is Delta BOS ensures you’ll breeze through check-in and security, enjoy amenities like complimentary Wi-Fi and charging stations, and arrive at your gate with plenty of time to relax before boarding. For those connecting between airlines or catching a rental car shuttle, simply follow the terminal transfer signs or request assistance from one of the friendly Delta customer service agents stationed throughout Terminal A.