Which terminal at O'Hare Airport is primarily responsible for international flights?

Terminal 5 at O'Hare Airport is specifically designated for international flights. It serves as the primary hub for international arrivals and departures, housing numerous airlines that operate across the globe. This terminal is equipped with facilities tailored for customs and immigration processes, which are essential for international travel.

The significance of Terminal 5 draws from its design and function; it has the necessary infrastructure to manage international passengers effectively, including lounges, duty-free shops, and restaurants that cater to diverse international travelers. It is the only terminal at O'Hare exclusively focused on international operations, setting it apart from the others, which handle primarily domestic flights or a mix of both domestic and limited international services.