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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 and American Airlines. 7 weekly departures are currently scheduled on this route. Departure times range from 12:55 to 21:30 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 40 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 40min
Updated Nov 9, 2026
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Airlines with non-stop routes:

United Airlines Star Alliance

Departure times vary between 12:55 and 20:05 • From Terminal 1
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
7 flights/week
7 flights/week

American Airlines oneworld

Departure times vary between 16:40 and 21:30 • From Terminal 3
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
From 17/12
From 17/12
Weekday-labels: HAS FLIGHTS UPCOMING NO FLIGHTS
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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
Nov 16
Tue
Nov 17
Wed
Nov 18
Thu
Nov 19
Fri
Nov 20
Sat
Nov 21
Sun
Nov 22
UA1904
16:15
16:15
16:15
16:15
16:15
16:15
16:15

The timetable & schedule information was updated at 2026-11-09

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Flight schedule from Chicago to Ontario with American Airlines

This is a weekly direct flight schedule for American 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
Nov 16
Tue
Nov 17
Wed
Nov 18
Thu
Nov 19
Fri
Nov 20
Sat
Nov 21
Sun
Nov 22

The timetable & schedule information was updated at

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Chicago to Ontario scheduled departures

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

Friday
Fri
Dec 04
1 flights(1)
Saturday
Sat
Dec 05
1 flights(1)
Sunday
Sun
Dec 06
1 flights(1)
Monday
Mon
Dec 07
1 flights(1)
Tuesday
Tue
Dec 08
1 flights(1)
Wednesday
Wed
Dec 09
1 flights(1)
Thursday
Thu
Dec 10
1 flights(1)
Time
Airline
Flight
16:15
United Airlines United Airlines
UA2430
16:15
United Airlines United Airlines
UA2430
16:15
United Airlines United Airlines
UA2430
16:15
United Airlines United Airlines
UA2430
16:15
United Airlines United Airlines
UA2430
16:15
United Airlines United Airlines
UA2430
16:15
United Airlines United Airlines
UA2430
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ORD-ONT flight route
Route map from Chicago, ORD to Ontario, ONT. The distance is 1706 miles or 2745 km.
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 40 minutes
  • Airlines
    United United
    American Airlines American Airlines
  • Airline alliances
    Star Alliance oneworld
  • Cabins
    Economy First
  • Hub airports
    United Airlines: ORD (Largest hub.)
    American Airlines: ORD
  • Departure terminals
    United Airlines: Terminal 1
    American Airlines: Terminal 3
  • Arrival terminals
    United Airlines: Terminal 2
    American Airlines: Terminal 4
  • Aircraft
    United Airlines: Airbus A319, Airbus A320, Boeing 737-700 Passenger and Boeing 737-800 Passenger
    American Airlines: Boeing 737-800 Passenger

Route FAQ

United Airlines and American Airlines operate non-stop flights from ORD to ONT with 7 weekly departures (Nov 16 – Nov 22, 2026).

Scheduled flight time from ORD to ONT ranges from 4 hours and 26 minutes to 4 hours and 40 minutes. The route covers 1706 miles (2745 km).

7 weekly departures (Nov 16 – Nov 22, 2026) are currently scheduled on this route, with published departure times ranging from 12:55 to 21:30 depending on the schedule period.

Departure terminals: United Airlines: Terminal 1 and American Airlines: Terminal 3. Arrival terminals: United Airlines: Terminal 2 and American Airlines: Terminal 4.

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