- Hi! Although it varies by time of day, United Airlines BOS Terminal is generally reliable. Although the gate workers and check-in agents are usually helpful, queues might get long at busy times. For speedy rebooking and flight management, the United app is a terrific resource if you need help. There is baggage assistance available, however there may be delays. Overall, the service is good; if you're traveling during peak hours, be patient. Have a safe journey!