QUICK ANSWER
These domestic terminals have secure-side pedestrian connections.
01
Terminal 5
Use current ATS/TTB guidance; Terminal 5 is not part of the same secure-side walking network.
02
International arrival
Without preclearance, clear CBP, collect bags and pass security again.
03
Construction
Transfer-bus stops can move during construction; verify the current airport notice.
Frequently asked questions
Can I walk from ORD Terminal 1 to Terminal 3 without leaving security?
Yes, O’Hare says Terminals 1–3 have secure-side pedestrian links.
Can I walk airside to Terminal 5?
No; use the airport’s current transfer system guidance.
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Sources and verification
Time-sensitive airport, airline, visa, security and transport details should always be confirmed with the relevant official source before travel.