Ronald Reagan Washington National Airport's (DCA) Terminal B is home to  United Airlines DCA Terminal. Travelers on United flights can check in at the desks or kiosks specifically designated for the airline in this terminal. They can then go through security to reach their departure gates. To provide a convenient and enjoyable travel experience, Terminal B provides a variety of services, such as dining options, retail stores, and cozy seating places. Travelers are urged to get in touch with United Airlines customer support for the most recent flight schedules, check-in details, and services offered.