01
Terminals 1–3
O’Hare says these terminals are connected and can be reached on the secure side for eligible connections.
02
Terminal 5
Terminal 5 is not part of the same secure-side pedestrian network. Use current ATS/TTB guidance.
03
International arrivals
Non-precleared international arrivals must clear CBP, collect bags and pass security again for onward travel.
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Official sources
The Airport Board uses airport or transport-operator sources for operational facts. Re-check time-sensitive information on travel day.