O’Hare features 4 terminals, nine concourses, and 213 boarding gates, more than any other airport in the world. A walkway links terminals 1-3 together. Terminal 5 is separated from the others by taxiways, and there is no walkway between it and Terminals 1–3. You can use the Airport Transit system, taxiways, or shuttles to go to other terminals from here. Are you interested in learning more about the terminals at ORD? Continue browsing the guidebook till the end.
Number of Terminals at ORD International Airport
The Chicago O’Hare International Airport (ORD) is located 17 miles from downtown Chicago. It is considered the most connected airport in the United States and the fifth most connected airport in the world, with multiple terminals designed to accommodate millions of passengers annually.
Below is the complete description of each terminal of ORD International Airport:
Terminal 1
Terminal 1 consists of two concourses: B, connected to the main terminal, and C, a satellite terminal connected via an underground pedestrian corridor.
The terminal 1 has 54 gates, numbered B1 to B12, B14, B16, B16A, B17, B17A, and B18 to B24 in Concourse B, and C1 to C16, C16A, C17, C18, C18A, and C19 to C31 in Concourse C.
Both concourses have stores, restaurants, and the United Club. Concourse C also features a United Polaris Lounge, as T1 serves as the primary hub for United Airlines’ domestic and international flights.
For more information, explore the comprehensive guide to Terminal 1 at ORD.
Terminal 2
Terminal 2 has 41 gates across two concourses. Concourse E includes gates E1 to E17, while Concourse F consists of gates F1, F3–F7, F9–F12, F14–F17, F18, and F20–F28.
United Airlines primarily operates from both concourses, while several other airlines, including Air Canada, Alaska Airlines, and JetBlue, also use the terminal as a key hub.
Passengers can find a variety of dining and shopping options throughout both concourses, and United Club lounges are conveniently located in Concourses E and F.
Discover more information about Terminal 2 at ORD in the guide, including the dining, shopping, lounges, and ground transportation available at the terminal.
Terminal 3
Terminal 3 is a large terminal with four concourses and 76 gates:
- Concourse G: G1A, G1B, G2 to G14, G14A, G15 to G19, G19A, G20, and G21
- Concourse H: H1 to H6, H8 to H10, H11A, H11B, H12, and H14 to H18
- Concourse K: K1 to K6, K8 to K10, K10A, K12, K13, K15, K16, and K18 to K20
- Concourse L: L1A, L2A, L2C, L3, L5, L6A, L6B, L7 to L9, L10A, L10B, L10C, L11, and L12
Explore the details guide to Terminal 3 at ORD for gathering more information.
Terminal 5
Terminal 5 is the primary international terminal at ORD Airport, where most international airlines operate ticket counters. All departures from Terminal 5 operate from Concourse M, which features 36 gates. These gates are numbered M1 to M11, M13 to M20, M20A, M21, M24 to M30, and M32 to M40 before security.
ORD Terminal 5 is the primary hub for Delta Air Lines, Frontier Airlines, and Southwest Airlines flights.
To navigate these boarding gates and other areas, check out the detailed guide on the ORD Airport map.
Conclusion
Chicago O’Hare Airport has four terminals: 1, 2, 3, and 5. Each terminal is used by different airlines and flights. Terminals 1, 2, and 3 are interconnected, allowing passengers to move between them easily, while Terminal 5 is separate and primarily used for international departures and arrivals. Each terminal offers a wide range of amenities, including dining options, shopping, lounges, and airline services, making travel convenient and comfortable.
Frequently Asked Questions
Yes, Southwest Airlines does fly to Chicago O’Hare International Airport (ORD).
Yes, pedestrian walkways connect Terminals 1, 2, and 3, allowing travelers to pass through security without leaving the terminal. Terminal 5, however, is a separate terminal accessible via the Airport Transit System.
Terminal 5 at O’Hare International Airport is the main terminal for international flights.
Yes, Terminal 5 is the primary hub for Delta Air Lines, Frontier Airlines, and Southwest Airlines.
O’Hare International Airport has four terminals – Terminal 1, Terminal 2, Terminal 3, and Terminal 5.



















