Terminals · ORD
United departs from Terminals 1 and 2 at O'Hare International Airport (ORD). We verified this against the airport's own sources on June 27, 2026 — airlines do move terminals, so we date every check.

United departs from Terminals 1 and 2 at O'Hare International Airport (ORD). Main hub in Terminal 1 (Concourses B and C). United Express regional flights — and some mainline — also operate from Terminal 2 (Concourses E and F). Verified June 27, 2026.
Terminal 1 ticketing/check-in (Premier Access in Terminal 1). Bag drop usually closes 45 minutes before departure, so build that into your morning.
Not that we've found. We confirmed United departs from Terminals 1 and 2 at ORD as of June 27, 2026. Airlines do shuffle terminals, so we re-check and date every change.
International flights depart from Terminal 1; international arrivals are processed through U.S. Customs (CBP) in Terminal 5 (ORD's only Federal Inspection facility).
Not sure which building that is? See all ORD terminals with the airport map and how to get between them. Then let your Leave-By Time count backward from your flight — today's ORD security wait, your drive, and the walk to your gate — so you leave with room to breathe.