Terminals · ORD
British Airways departs from Terminal 3 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.

British Airways departs from Terminal 3 at O'Hare International Airport (ORD). Departs from Terminal 3 (co-located with American/oneworld). Verified June 27, 2026.
Terminal 3 ticketing. Bag drop usually closes 45 minutes before departure, so build that into your morning.
British Airways moved its departures from Terminal 5 to Terminal 3 in April 2024. We confirmed British Airways's current Terminal 3 on June 27, 2026.
Terminal 3 for departures; international arrivals processed through CBP in Terminal 5 (BA arrives into T5).
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.