Planning a trip through Boston and asking yourself, what terminal is Jetblue at BOS You're heading to Terminal C, the airline’s main hub at Logan. It’s one of the busiest parts of the airport, but don’t worry—JetBlue has made it easy to navigate. You’ll find plenty of signage, fast check-in kiosks, and even spots to grab a bite before your flight. Just be sure to arrive early, especially during peak travel times.