O'hare Airport Terminal 1

O’Hare Airport Terminal 1 is one of the three domestic terminals available in O’Hare International Airport.

It is home of United Airlines, which hosts all its domestics flights in this terminal and the International Departures.


Transfer between terminals

By the ATS train is possible to transfer between terminals at the pre-security areas. It has a few minutes’ frequency.

A shuttle bus connects the Parking Lot F and the domestic terminals (1, 2 and 3) with Terminal 5.

Alternatively, for transferring between domestic terminals, by the Pedestrian Tunnel Level is possible to get from one each other and also to the main parking garage, which is located in the center of the airport premises, the Hilton Hotel and the Bus/Shuttle Centre at Level 1.

Terminal 1 has a pedestrian tunnel that links with Terminal 2 and 3.



Terminal 1 has two concourses named as B and C. It has a total of 55 gates divided between both concourses. The two concourse buildings are parallel to each other, being Concourse C a satellite terminal with gates on all sides.


Connection between concourses

It is linked to Concourse B through an underground pedestrian tunnel.


Concourse B

O’Hare Terminal 1 Concourse B consist of two levels:

  • Upper level: On the Upper Level there is a direct connection with the roadway and departures. It has also a direct connection with the Airport Transit System (ATS).


  • Lower level: On the Lower Level there is the Ground Transportation Area: Airport Express, Car Rental, Taxis and Limousines, Suburban and Reserved Taxis, Charter Buses. Bus Shuttle Center is located at Level 1. 

Concourse B is home of B1-B12, B14, B16, B16A, B17, B17A, B18-24 gates.


Concourse C

Concourse C hosts gates C1 to C10, C10A, C11, C15, C16, C16A, C17, C18, C18A, and from C19 to C31.



See in the following link the airlines operating in Terminal 1.
Airlines in Terminal 1


Airport lounges

O’Hare Terminal 1 has at their passenger’s disposal the following lounges:

  • United Club: In the Airside, find it at the Concourse B North, close to Gate B18.
  • United Club: In the Airside, it is located in Concourse B South, close to Gate B6.
  • United Club: In the Airside, at the Concourse C, near Gate C16. It is the single lounge with showers available. (temporary closed)