Air Canada primarily operates from Terminal 2 of Chicago O'Hare International Airport (ORD). Air Canada ORD Terminal serves both domestic and international flights. After clearing security, guests will find a variety of amenities, including restaurants, shops, and lounges. Depending on the itinerary, international flights may additionally require a transfer to International Terminal 5 for customs and immigration clearance. It is always a good idea to check your boarding pass and flight information for the most recent terminal information.