Arrival Departure

Planning a trip with American Airlines through Chicago O'Hare International Airport? American Airlines uses Terminal 3 as its primary passenger terminal at ORD. Whether you are departing, arriving, checking baggage, or looking for your departure gate, understanding the terminal layout can help make your airport experience more convenient. Terminal 3 features check-in counters, ticketing services, baggage facilities, security checkpoints, and access to concourses G, H, K, and L. Passengers can also enjoy airport dining, shopping, and Admirals Club lounge facilities. This guide answers common questions about the American Airlines O'Hare terminal and explains important details about domestic and international travel. Since some international arrivals may use Terminal 5, always confirm your terminal and gate before your journey.