United Airlines Ontario to Toronto Flights

Return flight: Toronto – Ontario

Cheapflightsplus.com will find cheap United Airlines flights from Ontario to Toronto. Compare airline ticket prices and book air tickets starting from $157 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Ontario (CA) — Toronto (ON) by United Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in march: one-way - $157, two-way – $269.
Direct flights
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Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
3:30 pm — 7:30 am
+1 day
3:30 pm — 5:14 pm UA5660 United Airlines
Ontario — San Francisco
6h 17m stop
11:31 pm — 7:30 am UA436 United Airlines
San Francisco — Toronto
13h
including layover
Find flight
from$434
3:30 pm — 6:43 am
+1 day
3:30 pm — 5:14 pm UA5660 United Airlines
Ontario — San Francisco
5h 31m stop
10:45 pm — 6:43 am UA8516 United Airlines
San Francisco — Toronto
12h 13m
including layover
Find flight
from$434
5:05 am — 4:27 pm
5:05 am — 8:24 am UA1575 United Airlines
Ontario — Denver
2h 51m stop
11:15 am — 4:27 pm UA8426 United Airlines
Denver — Toronto
8h 22m
including layover
Find flight
from$164
5:05 am — 3:02 pm
5:05 am — 8:24 am UA1575 United Airlines
Ontario — Denver
1h 29m stop
9:53 am — 3:02 pm UA1874 United Airlines
Denver — Toronto
6h 57m
including layover
Find flight
from$164
6:00 am — 4:17 pm
6:00 am — 7:26 am UA277 United Airlines
Ontario — San Francisco
56m stop
8:25 am — 4:17 pm UA8514 United Airlines
San Francisco — Toronto
7h 17m
including layover
Find flight
from$157
6:00 am — 4:52 pm
6:00 am — 7:26 am UA277 United Airlines
Ontario — San Francisco
1h 24m stop
8:49 am — 4:52 pm UA608 United Airlines
San Francisco — Toronto
7h 52m
including layover
Find flight
from$164
6:00 am — 10:52 pm
6:00 am — 7:29 am UA277 United Airlines
Ontario — San Francisco
3h 41m stop
11:10 am — 2:54 pm UA277 United Airlines
San Francisco — Denver
2h 46m stop
5:40 pm — 10:52 pm UA8456 United Airlines
Denver — Toronto
13h 52m
including layover
Find flight
from$731
7:15 pm — 7:30 am
+1 day
7:15 pm — 8:44 pm UA1757 United Airlines
Ontario — San Francisco
2h 47m stop
11:31 pm — 7:30 am UA436 United Airlines
San Francisco — Toronto
9h 15m
including layover
Find flight
from$164
7:15 pm — 6:43 am
+1 day
7:15 pm — 8:44 pm UA1757 United Airlines
Ontario — San Francisco
2h 1m stop
10:45 pm — 6:43 am UA8516 United Airlines
San Francisco — Toronto
8h 28m
including layover
Find flight
from$354
*Departure and arrival times are local. Last updated on 02/22/2025

Flight Information

There are 10 flights by United Airlines from Ontario to Toronto every week with departures from Ontario Int. and International Heliport. All flights arrive at Pearson International, Toronto Island, Buttonville Municipal.

Departures start from 3:30 pm to 7:15 pm. Nonstop flight is 6h 57m. The time difference between Ontario and Toronto is 3h.

  • The fastest flight 6h 57m
  • Average flight time 8h 28m
  • The earliest flight 3:30 pm
  • The latest flight 7:15 pm
  • Distance 2140 ml

The cheapest months for traveling to Toronto are november (from 157 $), february (from 164 $), december (from 349 $).

The cheapest flight by United Airlines that our users were able to find is $157. This airfare is economy class on one-way UA277 flight for February 21, 2025 leaving Ontario Int. in Ontario at 6:00 am, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides United Airlines there are other 3 airline carriers between Ontario and Toronto. Please review schedules and prices from the most popular airlines to find the best airfare deals from Ontario to Toronto.

Nonstop flights

There’re no direct flights on this route. Try flights with stops.

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Connecting Flights

List of flights with layovers (1 and more stops):

  • from $351
    Find
  • AS - Alaska Airlines
    from $229
    Find
  • F9 - Frontier Airlines
    from $129
    Find
See more connecting flights

How to book an air ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected airfare.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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