Learn all you need to know about Denver International Airport's British Airways DEN Terminal Find out about food options, lounges, check-in processes, and other terminal amenities. Our guide makes sure your trip is easy and pleasurable by guiding you through the British Airways terminal, whether you're arriving or leaving. Learn about the most recent amenities and services that British Airways travelers may take advantage of at DEN. With all you need in one comprehensive reference, you can plan your journey with confidence and convenience.