United Airlines DEN Terminal one of the main hubs for both domestic and international flights is the Concourse B terminal at Denver International Airport (DEN), which is operated by United Airlines. There are many dining options, shops, and lounges in this modern terminal with lots of amenities. From light snacks to full meals, passengers can take use of a variety of options. With ample seating places and charging outlets, the concourse is well-equipped for convenience. United also ensures a seamless travel experience by offering quick check-in and boarding procedures. Due to its prominent position within the terminal, United Airlines is able to link passengers to a wide range of global destinations.