Direct flights from Ontario to Chicago
All flights from ONT to ORD non-stop. There are direct flights from Ontario International Airport (ONT), California, USA to Chicago O Hare International (ORD), Illinois, USA with United Airlines. 7 weekly departures are currently scheduled on this route. Departure times range from 06:10 to 23:59 depending on the schedule period. The flight distance is 1706 miles (2745 km). Flight time ranges from 4 hours and 3 minutes to 4 hours and 15 minutes.
Ontario
, USA
Flight schedule from Ontario to Chicago with United Airlines
This is a weekly direct flight schedule for United Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2026-06-29
Ontario to Chicago scheduled departures
Select a date to see every published non-stop departure between ONT and ORD.
ONT - ORD route facts
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Distance1706 miles (2745 km)
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Flight time4 hours and 3 minutes to 4 hours and 15 minutes
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Airline United
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Airline alliancesStar Alliance
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CabinsEconomy Business First
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Hub airportsORD (Largest hub.)
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Departure terminalsTerminal 2
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Arrival terminalsTerminal 1
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AircraftBoeing 737-900 Passenger, Airbus A320 and Boeing 737-800 Passenger
Route FAQ
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Direct flights from Ontario to IL, USA
From Ontario to Chicago
MDW Chicago Midway International
