Dublin Airport’s Terminal 2 is home to United Airlines (DUB). What Terminal is United Airlines at DUB? It’s Terminal 2, which is mainly utilized for foreign travel and has a lot of amenities including duty-free shopping, nice restaurants, and lounges. Passengers on United Airlines departing from DUB can look forward to a seamless and quick journey with access to contemporary amenities and services. Furthermore, Terminal 2 provides U.S. preclearance, which streamlines entry into the country by enabling visitors to finish immigration and customs formalities prior to departing.