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 5 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 passenger brochure identifies Dunkin' at Gate M16 as a 24-hour location.
Verified from the official source on August 29, 2026.