ORD
O'Hare International Airport
Practical guidelines for O'Hare International Airport — security, bags, and connections. Take the full checklist offline in the app.
Security
TSA screening
O'Hare has multiple TSA checkpoints by terminal. TSA PreCheck and CLEAR are available. Liquids follow the 3-1-1 rule.
customs
International arrivals
CBP processes international arrivals; Global Entry speeds re-entry for members.
Baggage
Baggage
United hub with extensive bag services. Confirm terminal before curb drop-off.
transit
Terminal transfers
ATS people mover connects Terminals 1–3 and remote parking. Allow time between distant gates.
Check-in
Check-in
Arrive 2 hours domestic / 3 hours international. Online check-in recommended.
boarding
Boarding
Gates close ~15 minutes before departure. Monitor United and partner boards for changes.
facilities
Lounges
United Clubs plus Priority Pass and partner lounges. Free Wi-Fi airport-wide.
local rules
Local rules
REAL ID required for domestic flights. Smoking only outdoors.
Fly prepared — on your phone
Full ORD profile, boarding-pass checklist, and AI coach offline.