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$140+ Cheap flights from Ontario (ONT) to Toronto (YTO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YTO
Apr 30 — May 71
Thu 4/30
Thu 5/7
1 adult, Economy
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Cheap flight deals from Ontario to Toronto

Cheapest flights from Ontario to Toronto
Explore the most affordable flight options available from Ontario to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1210:35 pm
ONT
-
YYZ
1 stop29h 08m
Multiple Airlines
Wed 4/1511:00 am
YYZ
-
ONT
2 stops24h 24m
Multiple Airlines
Deal found 3/29$315
This Kiwi.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/272:05 pm
ONT
-
YYZ
1 stop26h 55m
Multiple Airlines
Mon 5/410:50 am
YYZ
-
ONT
2 stops31h 54m
Multiple Airlines
Deal found 3/30$318
This Kiwi.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1311:10 am
ONT
-
YYZ
1 stop16h 33m
Multiple Airlines
Sun 4/198:00 pm
YYZ
-
ONT
1 stop27h 04m
Multiple Airlines
Deal found 3/30$326
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/43:30 pm
ONT
-
YYZ
2 stops26h 45m
Multiple Airlines
Sun 6/79:45 am
YYZ
-
ONT
1 stop8h 24m
Multiple Airlines
Deal found 3/28$355
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:50 pm
ONT
-
YYZ
2 stops12h 55m
Multiple Airlines
Tue 5/199:45 am
YYZ
-
ONT
1 stop8h 59m
Multiple Airlines
Deal found 3/28$361
This Flysmarter deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:00 am
ONT
-
YYZ
1 stop7h 14m
Air Canada
Wed 4/2212:45 pm
YYZ
-
ONT
2 stops13h 00m
Air Canada
Deal found 3/29$402
This Flysmarter deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:35 pm
ONT
-
YYZ
2 stops12h 18m
Multiple Airlines
Wed 4/2212:45 pm
YYZ
-
ONT
2 stops13h 00m
Multiple Airlines
Deal found 3/29$407
This United Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:00 am
ONT
-
YTZ
1 stop6h 41m
United Airlines
Thu 10/1512:15 pm
YTZ
-
ONT
1 stop13h 11m
United Airlines
Deal found 3/29$515
This United Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/256:30 am
ONT
-
YTZ
1 stop7h 11m
United Airlines
Fri 7/3112:15 pm
YTZ
-
ONT
1 stop13h 36m
United Airlines
Deal found 3/29$516
This Air Canada deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:00 am
ONT
-
YTZ
2 stops26h 06m
Air Canada
Thu 6/47:20 pm
YTZ
-
ONT
2 stops25h 08m
Air Canada
Deal found 3/30$518
This United Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/21:50 pm
ONT
-
YTZ
2 stops17h 16m
United Airlines
Fri 7/1012:15 pm
YTZ
-
ONT
1 stop13h 36m
United Airlines
Deal found 3/29$521
This United Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:00 am
ONT
-
YTZ
2 stops10h 42m
United Airlines
Wed 10/1412:15 pm
YTZ
-
ONT
1 stop13h 11m
United Airlines
Deal found 3/29$525

Find flight deals from Ontario to Toronto

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Toronto (YTO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 31, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$315
(Kiwi.com)

One-way from

$140
(Trip.com)

Popular in

January

Cheapest in

April

Average price

$577
Provider with most accurate pricing for Ontario-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Toronto (YTO) flights.
Search Deals
From Ontario to Toronto (YTO)
Search Deals
One-way flight from Ontario to Toronto (YTO)
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($249 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($56 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Toronto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 31, 2026.
Use the filters below to find and compare flights from Ontario to Toronto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Tue 7/21

6:30 am-11:59 pm

1 stop14h 29m

Toronto Pearson Intl

Tue 7/28

6:30 am-10:37 pm

1 stop19h 07m

$436

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Tue 8/25

7:00 am-8:44 pm

1 stop10h 44m

Toronto Pearson Intl

Mon 8/31

7:00 am-6:19 pm

1 stop14h 19m

$436

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Sat 5/23

5:00 am-9:32 pm

1 stop13h 32m

Toronto Pearson Intl

Tue 5/26

10:45 am-5:28 pm

1 stop9h 43m

$436

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Tue 5/5

7:00 am-8:44 pm

1 stop10h 44m

Toronto Pearson Intl

Wed 5/6

5:20 pm-10:35 pm

1 stop8h 15m

$436

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Thu 4/16

6:00 am-4:14 pm

1 stop7h 14m

Toronto Pearson Intl

Sun 4/19

6:30 am-12:20 pm

1 stop8h 50m

$436

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Tue 7/21

6:00 am-4:35 pm

1 stop7h 35m

Toronto Pearson Intl

Tue 7/28

6:15 am-4:35 pm

2 stops13h 20m

$446

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Thu 6/11

10:00 pm-10:23 am

1 stop9h 23m

Toronto Pearson Intl

Tue 6/16

5:45 pm-11:45 pm

1 stop9h 00m

$449

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Thu 4/30

6:59 pm-7:00 am

1 stop9h 01m

Toronto Pearson Intl

Wed 5/6

4:18 pm-8:36 pm

1 stop7h 18m

$449
Quickest round-trip

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Mon 4/20

6:00 am-4:14 pm

1 stop7h 14m

Toronto Pearson Intl

Mon 5/18

5:16 pm-10:59 pm

1 stop8h 43m

$449

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Tue 4/14

12:49 pm-11:59 pm

1 stop8h 10m

Toronto Pearson Intl

Mon 4/20

11:30 am-9:00 pm

1 stop12h 30m

$450

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/29

Showing 1-10 of 39 resultsSorted by cheapest first
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Compare providers for flights from Ontario to Toronto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Toronto in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Toronto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Toronto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Toronto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Toronto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Toronto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Toronto

Have a flexible travel schedule? Discover the best time to fly to Toronto from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Toronto

What is the cheapest month to book a flight from Ontario to Toronto?

Currently, June is the cheapest month in which you can book a flight from Ontario to Toronto (average of $78). Flying from Ontario to Toronto in December is currently the most expensive (average of $188). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Ontario to Toronto?

What’s the top layover airport for flights from Ontario to Toronto?

Share of 1-stop round-trip flights from Ontario to Toronto chosen by Cheapflights users in the past 12 months, using the same layover each way.

Chicago (ORD) – chosen by Cheapflights users on 50% of 1-stop itineraries from Ontario to Toronto on Cheapflights.

What’s the cheapest layover airport for flights from Ontario to Toronto?

Average round-trip fare for 1-stop flights from Ontario to Toronto, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Chicago (ORD) is the most affordable 1-stop option, with an average round-trip price of $614.

What’s the fastest layover option from Ontario to Toronto?

Shortest average travel time for 1-stop one-way flights from Ontario to Toronto, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 6h 41m.

Which airport typically offers the quickest layover for flights from Ontario to Toronto?

Average layover duration for 1-stop one-way flights from Ontario to Toronto, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 04m.

Reviews of airlines servicing Toronto

Get insights into the airlines that provide service to Toronto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Toronto. Reviews last updated March 31, 2026.
See what other customers who have flown with United Airlines from Ontario to Toronto have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,525 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,525 reviews
United Airlines
7.4
Good
9,525 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Ontario to Toronto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Toronto?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Toronto. You should not have trouble finding flights to Toronto from Ontario; the airport handles an average of 0 outbound flights to Toronto per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Ontario airport to Toronto. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • How long is the flight from Ontario to Toronto?

    United Airlines and Air Canada can get you from Ontario to Toronto in just under 6h 41m. Your travel time can differ by up to 19h 25m. There are 2137 mi between Ontario and Toronto. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Ontario to Toronto round-trip?

    Our cheapest airline available from Ontario to Toronto is Air Canada. Our recent data shows that you can find tickets from as low as $122 on this airline. An additional option worth looking into is United Airlines, starting at $320. Air Canada is currently priced 84% below the average price you’ll pay for this route.

  • Can I find deals for flights from Ontario to Toronto that include hotel bookings?

    Yes. In addition to deals on Ontario to Toronto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Toronto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Toronto.

  • Can I find deals for business class flights from Ontario to Toronto?

    Yes. Cheapflights offers flight deals from Ontario to Toronto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Toronto?

    Currently, June is the cheapest month in which you can book a flight from Ontario to Toronto (average of $78). Flying from Ontario to Toronto in December is currently the most expensive (average of $188). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Ontario to Toronto

Discover the top 2 airlines that operate flights from Ontario to Toronto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 31, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$122Average$582FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$320Average$614FlexibilityNo cancel feeOn-time69%

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