I am a jackadam and I love United Airlines DEN Terminal operates at Denver International Airport is a destination in itself but not only for its efficiency and customer friendly focus. Amenities at the modern terminal include United Club lounges a variety of dining options and easy check in and security processes. Complete with a slew of flight options and connections across the U.S. and super friendly service at every turn Concourse B brings in tons of travelers but keeps things running smooth all while airporting happy. The place has a proud history and rightly so among all United Airlines travel hubs at DEN.