HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$129+ Cheap flights from Canada to Ontario (ONT)

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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ONT
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Canada to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Canada to Ontario

Keep the following information in mind while searching for Canada to Ontario flight deals. Data was last updated September 16, 2025.

Round-trip from

$179
(Kiwi.com)

One-way from

$129
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$251
From Canada to Ontario
Search Deals
One-way flight from Canada to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Canada to Ontario

Cheapest flights from Canada to Ontario
Explore the most affordable flight options available from Canada to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/177:00 amYVR - ONT
1 stop17h 12mMultiple Airlines
Mon 10/2010:50 pmONT - YVR
1 stop13h 50mMultiple Airlines
Deal found 9/15$179
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/135:00 amYVR - ONT
2 stops18h 50mMultiple Airlines
Mon 10/2010:50 pmONT - YVR
1 stop13h 50mMultiple Airlines
Deal found 9/15$197
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/273:40 pmYVR - ONT
1 stop6h 25mMultiple Airlines
Fri 10/3110:40 pmONT - YVR
1 stop14h 00mMultiple Airlines
Deal found 9/16$216
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/167:00 amYVR - ONT
1 stop17h 07mMultiple Airlines
Thu 10/2310:40 pmONT - YVR
1 stop14h 00mMultiple Airlines
Deal found 9/16$222
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/37:00 amYVR - ONT
1 stop16h 38mMultiple Airlines
Sun 10/56:00 amONT - YVR
2 stops10h 11mMultiple Airlines
Deal found 9/15$232
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/239:45 amYVR - ONT
1 stop12h 10mMultiple Airlines
Sat 10/251:37 pmONT - YVR
1 stop10h 25mMultiple Airlines
Deal found 9/14$236
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sat 10/113:30 pmYVR - ONT
2 stops16h 07mMultiple Airlines
Thu 10/166:54 pmONT - YVR
1 stop27h 31mMultiple Airlines
Deal found 9/14$239
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 9/309:45 amYVR - ONT
1 stop12h 11mMultiple Airlines
Sun 10/58:59 pmONT - YVR
2 stops39h 41mMultiple Airlines
Deal found 9/16$243
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 11/49:35 amYYZ - ONT
1 stop14h 07mMultiple Airlines
Tue 11/118:00 amONT - YYZ
2 stops32h 36mMultiple Airlines
Deal found 9/13$262
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/3011:40 pmYYC - ONT
2 stops23h 18mMultiple Airlines
Thu 11/610:40 pmONT - YYC
1 stop17h 08mMultiple Airlines
Deal found 9/15$264
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/147:35 pmYYC - ONT
1 stop26h 07mMultiple Airlines
Tue 10/218:00 amONT - YYC
2 stops11h 00mMultiple Airlines
Deal found 9/16$271
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Wed 10/153:15 pmYWG - ONT
2 stops19h 55mMultiple Airlines
Thu 10/236:05 amONT - YWG
1 stop16h 35mMultiple Airlines
Deal found 9/14$290

Cheapflights Fare Finder

 
Customize your flight search to find flights from Canada to Ontario 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 September 16, 2025.
Use the filters below to find and compare flights from Canada to Ontario that are best for you.

Fly from

Canada

Fly to

Ontario

Route

Depart

Return

Price

VancouverOntario

YVR - ONT

YVRONT

Vancouver Intl

Sat 10/11

10:30 am-11:08 am

1 stop24h 38m

Ontario

Thu 10/16

6:54 pm-10:25 pm

1 stop27h 31m

$261

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Thu 10/30

10:05 am-11:40 pm

1 stop14h 35m

Ontario

Thu 11/6

10:40 pm-4:48 pm

1 stop17h 08m

$271

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Wed 11/12

11:30 pm-11:40 pm

2 stops25h 10m

Ontario

Wed 2/25

1:37 pm-11:00 pm

1 stop8h 23m

$291

EdmontonOntario

YEG - ONT

YEGONT

Edmonton

Tue 10/14

12:00 pm-8:42 pm

2 stops9h 42m

Ontario

Thu 10/16

6:05 am-2:10 pm

1 stop7h 05m

$292

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Thu 2/5

3:30 pm-10:53 pm

1 stop8h 23m

Ontario

Sun 2/8

1:53 pm-12:26 pm

1 stop21h 33m

$317

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Wed 10/29

3:30 pm-10:51 pm

1 stop8h 21m

Ontario

Sun 11/9

5:05 am-9:53 pm

1 stop15h 48m

$338

VancouverOntario

YVR - ONT

YVRONT

Vancouver Intl

Sat 10/18

6:00 am-12:37 pm

1 stop6h 37m

Ontario

Thu 10/23

6:00 am-12:48 pm

1 stop6h 48m

$340

VancouverOntario

YVR - ONT

YVRONT

Vancouver Intl

Tue 10/14

6:00 pm-12:03 am

1 stop6h 03m

Ontario

Fri 10/17

7:43 pm-12:12 am

1 stop4h 29m

$340

VancouverOntario

YVR - ONT

YVRONT

Vancouver Intl

Tue 10/14

2:20 pm-8:24 pm

1 stop6h 04m

Ontario

Tue 10/21

1:53 pm-8:59 pm

1 stop7h 06m

$340

VancouverOntario

YVR - ONT

YVRONT

Vancouver Intl

Fri 10/17

2:20 pm-8:24 pm

1 stop6h 04m

Ontario

Tue 10/21

1:53 pm-8:59 pm

1 stop7h 06m

$340

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Canada to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Canada 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 Canada to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Canada to Ontario (average of $246). Flying from Canada to Ontario in March is currently the most expensive (average of $327). 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.

What is the cheapest time of day to fly from CA to ONT?

Find hourly flight availability from Canada to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Canada to Ontario as you normally would.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated September 16, 2025.
Peruse reviews from past customers who have flown with Delta and United Airlines from Canada to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,957 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Canada to Ontario. 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 into for flights to Ontario from Canada?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Canada. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Canada to Ontario?

    Airlines like United Airlines, Delta, and Alaska Airlines fly from Canada to Ontario in about 8h 04m. The time it takes to get you to your destination can typically vary by up to 1h 13m. There are 1102 mi between Canada and Ontario. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Canada to Ontario one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $185. However, be on the lookout for offers from Alaska Airlines and WestJet, as they are both options that can get you from Canada to Ontario for a low price.

  • What are the most popular routes from Canada to Ontario?

    When deciding which route to take from Canada to Ontario consider Vancouver Intl - Ontario, Toronto Pearson Intl - Ontario or Calgary - Ontario as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Canada to Ontario 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 Canada to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Canada to Ontario (average of $246). Flying from Canada to Ontario in March is currently the most expensive (average of $327). 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.

Alternative routes for Canada to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
Newark to Las Vegas flights
Seattle to Las Vegas flights
O'Hare Intl to Las Vegas flights
San Francisco to Las Vegas flights
John F Kennedy Intl to San Francisco flights
Seattle to Los Angeles flights
Newark to Los Angeles flights
Dallas/Fort Worth to Los Angeles flights
Atlanta to Las Vegas flights
San Francisco to Los Angeles flights
Los Angeles to San Francisco flights
Los Angeles to Las Vegas flights
O'Hare Intl to Los Angeles flights
Newark to San Francisco flights
LaGuardia to Los Angeles flights
Denver to Las Vegas flights
Hobby to Las Vegas flights
Boston to Las Vegas flights
Boston to Los Angeles flights
LaGuardia to Las Vegas flights
Santa Ana to Las Vegas flights
Dulles Intl to Los Angeles flights
Reagan-National to Los Angeles flights
Dulles Intl to Las Vegas flights
San Francisco to Santa Ana flights
Seattle to San Diego flights
San Francisco to Ontario flights
Ontario to San Francisco flights
Seattle to Ontario flights
Minneapolis to Las Vegas flights
Dallas/Fort Worth to San Francisco flights
Santa Ana to San Francisco flights
Burbank to Las Vegas flights
Oakland to Las Vegas flights
George Bush Intcntl to Las Vegas flights
John F Kennedy Intl to Ontario flights
O'Hare Intl to San Francisco flights
Los Angeles to San Jose flights
Love Field to Las Vegas flights
Austin to Las Vegas flights
Orlando to Las Vegas flights
Baltimore to Las Vegas flights
San Jose to Las Vegas flights
Boston to San Francisco flights
Philadelphia to Las Vegas flights
Reagan-National to Las Vegas flights
Midway to Las Vegas flights

Top 2 airlines flying from Canada to Ontario

Discover the top 2 airlines that operate flights from Canada to Ontario. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$274Average$525FlexibilityNo cancel feeOn-time69%
DeltaCheapest$294Average$364FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.