Background

United Airlines operates primarily out of Terminal 1 at O'Hare International Airport (ORD) in Chicago. This terminal handles most of their domestic flights, while a few international flights might also depart from here. For certain international routes, United may use Terminal 5, especially for arrivals. When traveling through O'Hare, always double-check your flight's terminal and gate as it can vary, particularly for international destinations. Keep in mind that Terminal 1 is also where United's Premier Access passengers enjoy faster check-ins and other priority services, enhancing the overall travel experience at ORD.