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O'Hare Terminal 3: airlines, gates and walking map
O'Hare Terminal 3 is where 6 airlines depart, among them American Airlines, British Airways, Contour, Aer Lingus and Iberia.
Its gates run G1A to L28. From Security Checkpoint 6 the nearest gate, H2, is under 1 minute away and the farthest, L28, about 7 to 10 minutes.
Airlines in Terminal 3
6 airlines fly from Terminal 3 on the airport's list.
- Aer Lingus
- American Airlines (international arrivals at Terminal 5)
- British Airways (arrivals at Terminal 5)
- Contour
- Iberia (arrivals at Terminal 5)
- Japan Airlines (arrivals at Terminal 5)
Gates: source pending. Airline list from flychicago.com, read 13 October 2026.
ORD Terminal 3 map
Map as an image
Getting to other terminals
Yes. Terminals 1, 2, 3: on foot, and you stay inside security.
Only at some hours. Terminal 5 to Terminals 1 to 3: bus (airside); otherwise landside transit, 11:30 a.m. to 9:30 p.m. Connecting passengers with a same‑day boarding pass; outside these hours leave security, take the ATS and re-screen.
Inside security from Security Checkpoint 6 you reach Terminal 1 and Terminal 2.
Try any two gates in the gate to gate box.
Gate to gate
Your walk shows here, right under the button.
Gates and which way to turn
Concourse G
20 gates. From Security Checkpoint 6: nearest G1A, 1 to 3 min; farthest G19A, 4 to 6 min. Past the checkpoint, turn left.
All 20 gates
Concourse H
22 gates. From Security Checkpoint 6: nearest H2, under 1 min; farthest H18, 6 to 8 min. Past the checkpoint, turn right.
All 22 gates
Concourse K
16 gates. From Security Checkpoint 6: nearest K2, 2 to 3 min; farthest K20, 6 to 9 min. Past the checkpoint, turn right.
All 16 gates
Concourse L
25 gates. From Security Checkpoint 6: nearest L1A, 4 to 6 min; farthest L28, 7 to 10 min. Past the checkpoint, turn right.
All 25 gates
Directions from our map of the walkways (OpenStreetMap).
Walking times from security
From: Security Checkpoint 6
Gates G1A to G211 to 6 min
Gates H1A to H18under 1 to 8 min
Gates K1 to K202 to 9 min
Gates L1A to L284 to 10 min
Gates G1A to G212 to 7 min
Gates H1A to H18under 1 to 7 min
Gates K1 to K201 to 8 min
Gates L1A to L283 to 9 min
Gates G1A to G213 to 8 min
Gates H1A to H181 to 8 min
Gates K1 to K20under 1 to 8 min
Gates L1A to L282 to 8 min
Gates G1A to G214 to 9 min
Gates H1A to H182 to 8 min
Gates K1 to K20under 1 to 9 min
Gates L1A to L281 to 7 min
Walking from Security Checkpoint 6 to gate L28 at ORD takes about 7 to 10 minutes.
Walking from Security Checkpoint 6 to gate K20 at ORD takes about 6 to 9 minutes. How we work out times
Checked October 2026.
Checkpoints in Terminal 3
Hours: see the airport's site. Gates G1A to L28.
Hours: see the airport's site. Gates G1A to L28.
Hours: see the airport's site. Gates G1A to L28.
Hours: see the airport's site. Gates G1A to L28.
Checkpoint names from maps.ord.flychicago.com, read 13 October 2026.
FAQ
How long is the walk to gate L28 at ORD?
From Security Checkpoint 6, about 7 to 10 minutes. Gate L28 is the farthest gate in Terminal 3.
Which airlines fly from ORD Terminal 3?
6 airlines on the airport's list, among them American Airlines, British Airways and Contour.
Where do I go through security for Terminal 3 at ORD?
At Security Checkpoint 6, Security Checkpoint 7, Security Checkpoint 7A and Security Checkpoint 8.
How do I get from Terminal 3 to another terminal at ORD?
At some hours inside security. See Getting to other terminals above for the legs and the line, which varies.
Sources and last checked
flychicago.com airline list, read 13 October 2026; checkpoint names and positions from maps.ord.flychicago.com, read 13 October 2026. Walkways from OpenStreetMap. Checked October 2026. How we work out times
Shops, food and lounges: see the airport's own map (maps.ord.flychicago.com).