Concourse B at Denver International Airport (DEN), United Airlines DEN Terminal which serves as a significant hub for both domestic and international flights, is the primary operating location of United Airlines. Self-service kiosks, United Club lounge for elite travelers, and customer service counters are just a few of the attractions available at the concourse. The automated train system at the airport makes it simple for travelers to move between concourses and the main Jeppesen Terminal. Concourse B offers a comfortable and well-stocked dining and shopping area for travelers. It is advised to arrive at least two hours before domestic flights and three hours before international flights to ensure a seamless experience.