Location and access
Published hoursOpen 24 hours every day
Location24-hour airport dining
Service access—
Phone2026-08-29
Verified2026-08-20
What is available overnight
Airport Dining 24/7
Airside Terminal 3 location; a boarding pass and security access are generally required.
Confirm current hours and access before making a special trip.
Verification evidence
The food outlet itself is documented open 24 hours.
Chicago O'Hare's official dining-hours publication lists Dunkin' at Terminal 3, Concourse H, Gate H5 as open 24 Hours.
Verified from the official source on August 29, 2026.