Connection time calculator, immigration and security, and how to move between terminals at ORD.
At Chicago O'Hare airport, as at every airport in the United States, passengers arriving on an international flight must clear immigration (CBP) and customs, collect their checked bags and re-check them, and go through TSA security again before their connecting flight, even when both flights are on the same ticket.
The airport has 4 terminals or concourses (Terminal 1, Terminal 2, Terminal 3, Terminal 5).
Connecting passengers go through a transfer security screening.
Is your layover at ORD long enough? Pick your connection and get an estimate with the times of this airport.
Terminals / concourses: Terminal 1, Terminal 2, Terminal 3, Terminal 5
Getting between them: Airside: pedestrian walkways between Terminals 1, 2, and 3, plus the Terminal Transfer Bus between T1/T3 and T5. Landside: the 24/7 automated Airport Transit System (ATS) train connects all terminals.
Terminals 1, 2, and 3 are connected airside by walkways. Terminal 5 is connected airside to Terminals 1 and 3 via the Terminal Transfer Bus (operating 11:30 a.m. to 9:30 p.m. daily); outside those hours, transfers require exiting to landside.
Estimate based on typical times at this airport, not your airline's official minimum connection time. Immigration and security lines change with the time of day and season. On a single ticket, the airline must rebook you if you miss the connection; on separate tickets, it does not.
Times are estimates: always check with your airline.
Estimated wait at the security checkpoints of ORD right now. When live data is not available, it shows historical averages.
