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Direct flights from Chicago to Ontario

Airlines Schedules

ORD - ONT route map All flights from ORD to ONT non-stop. There are direct flights from Chicago O Hare International (ORD), Illinois, USA to Ontario International Airport (ONT), California, USA with United Airlines. 7 weekly departures are currently scheduled on this route. Departure times range from 17:30 to 20:30 depending on the schedule period. The flight distance is 1706 miles (2745 km). Flight time ranges from 4 hours and 26 minutes to 4 hours and 33 minutes.

ORD
Chicago O Hare
USAChicago , USA
ONT
Ontario Airport
USAOntario , USA
ORD
Chicago O Hare
USAChicago , USA
Ontario Airport
USAOntario , USA
ONT
Flight time 4h 26min to 4h 33min
Updated Jun 2, 2026
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Airlines with non-stop routes:

United Airlines Star Alliance

Departure times vary between 17:30 and 20:30 • From Terminal 1
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
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7 flights/week
7 flights/week
Weekday-labels: HAS FLIGHTS UPCOMING NO FLIGHTS
View all flight dates
Flight schedule from Chicago to Ontario 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
Mon
Jun 29
Tue
Jun 30
Wed
Jul 1
Thu
Jul 2
Fri
Jul 3
Sat
Jul 4
Sun
Jul 5
UA658
20:18
20:18
20:18
20:18
20:18
20:18
20:18

The timetable & schedule information was updated at 2026-06-02

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Chicago to Ontario scheduled departures

Select a date to see every published non-stop departure between ORD and ONT.

Thursday
Thu
Jul 02
1 flights(1)
Friday
Fri
Jul 03
1 flights(1)
Saturday
Sat
Jul 04
1 flights(1)
Sunday
Sun
Jul 05
1 flights(1)
Monday
Mon
Jul 06
1 flights(1)
Tuesday
Tue
Jul 07
1 flights(1)
Wednesday
Wed
Jul 08
1 flights(1)
Time
Airline
Flight
20:18
United Airlines United Airlines
UA658
20:18
United Airlines United Airlines
UA658
20:18
United Airlines United Airlines
UA658
20:18
United Airlines United Airlines
UA658
20:18
United Airlines United Airlines
UA658
20:18
United Airlines United Airlines
UA658
20:18
United Airlines United Airlines
UA658
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ORD-ONT flight route
Route map from Chicago, ORD to Ontario, ONT. The distance is 1706 miles or 2745 km.
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Chicago - Ontario direct flight map
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ORD - ONT route facts

  • Distance
    1706 miles (2745 km)
  • Flight time
    4 hours and 26 minutes to 4 hours and 33 minutes
  • Airline
    United United
  • Airline alliances
    Star Alliance
  • Cabins
    Economy Business First
  • Hub airports
    ORD (Largest hub.)
  • Departure terminals
    Terminal 1
  • Arrival terminals
    Terminal 2
  • Aircraft
    Boeing 737-800 Passenger and Boeing 737-900 Passenger

Route FAQ

United Airlines operates non-stop flights from ORD to ONT with 7 weekly departures.

Scheduled flight time from ORD to ONT ranges from 4 hours and 26 minutes to 4 hours and 33 minutes. The route covers 1706 miles (2745 km).

7 weekly departures are currently scheduled on this route, with published departure times ranging from 17:30 to 20:30 depending on the schedule period.

Departure terminal: Terminal 1. Arrival terminal: Terminal 2.

Economy, Business and First are currently scheduled on non-stop flights for this route.
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