HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$135+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ONT
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
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 julio 30, 2025.

Round-trip from

$277
(Kiwi.com)

One-way from

$135
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$324
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 ($34 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 July 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 julio 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
mié. 8/1311:35 amYVR - ONT
2 stops10h 17mMultiple Airlines
dom. 8/175:14 pmONT - YVR
1 stop19h 41mMultiple Airlines
Deal found 7/27$238
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
mié. 9/179:30 amYYZ - ONT
1 stop15h 26mMultiple Airlines
mié. 9/248:00 amONT - YYZ
1 stop8h 45mMultiple Airlines
Deal found 7/29$288
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/261:48 pmYVR - ONT
1 stop4h 40mAlaska Airlines
mar. 9/26:00 amONT - YVR
1 stop6h 48mAlaska Airlines
Deal found 7/29$299
This United Airlines deal was found by Cheapflights users on 7/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/3012:40 pmYVR - ONT
1 stop4h 57mUnited Airlines
mar. 9/26:50 pmONT - YVR
1 stop4h 32mUnited Airlines
Deal found 7/30$300
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
vie. 9/128:55 amYYC - ONT
1 stop11h 59mMultiple Airlines
vie. 9/1910:28 pmONT - YYC
1 stop12h 27mMultiple Airlines
Deal found 7/29$314
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/2111:55 pmYVR - ONT
1 stop10h 03mAmerican Airlines
sáb. 8/2312:22 pmONT - YVR
2 stops11h 13mAmerican Airlines
Deal found 7/29$328
This United Airlines deal was found by Cheapflights users on 7/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/36:15 amYYC - ONT
1 stop7h 17mUnited Airlines
sáb. 9/61:15 pmONT - YYC
1 stop7h 33mUnited Airlines
Deal found 7/30$354
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/116:13 amYVR - ONT
1 stop4h 56mDelta
dom. 9/146:00 amONT - YVR
1 stop4h 38mDelta
Deal found 7/28$356
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/195:17 pmYEG - ONT
1 stop18h 27mAlaska Airlines
sáb. 9/273:06 pmONT - YEG
1 stop18h 43mAlaska Airlines
Deal found 7/29$358
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/97:00 pmYYC - ONT
1 stop6h 03mAlaska Airlines
sáb. 10/185:45 pmONT - YYC
2 stops15h 59mAlaska Airlines
Deal found 7/29$370
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/102:47 pmYLW - ONT
1 stop23h 25mAlaska Airlines
mié. 9/176:00 amONT - YLW
1 stop7h 57mAlaska Airlines
Deal found 7/29$372
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/227:55 amYYC - ONT
1 stop5h 19mDelta
lun. 8/251:15 pmONT - YYC
1 stop8h 42mDelta
Deal found 7/29$379

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 julio 30, 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

mié. 8/13

11:35 am-9:52 pm

2 stops10h 17m

Ontario

dom. 8/17

5:14 pm-12:55 pm

1 stop19h 41m

$238

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

mié. 9/17

9:30 am-9:56 pm

1 stop15h 26m

Ontario

mié. 9/24

8:00 am-7:45 pm

1 stop8h 45m

$288

VancouverOntario

YVR - ONT

YVRONT

Vancouver Intl

mar. 8/26

1:48 pm-6:28 pm

1 stop4h 40m

Ontario

mar. 9/2

6:00 am-12:48 pm

1 stop6h 48m

$299

VancouverOntario

YVR - ONT

YVRONT

Vancouver Intl

sáb. 8/30

12:40 pm-8:33 pm

1 stop7h 53m

Ontario

mar. 9/2

6:50 pm-11:22 pm

1 stop4h 32m

$300

CalgaryOntario

YYC - ONT

YYCONT

Calgary

vie. 9/12

8:55 am-7:54 pm

1 stop11h 59m

Ontario

vie. 9/19

10:28 pm-11:55 am

1 stop12h 27m

$314

VancouverOntario

YVR - ONT

YVRONT

Vancouver Intl

jue. 8/21

11:55 pm-9:58 am

1 stop10h 03m

Ontario

sáb. 8/23

12:22 pm-11:35 pm

2 stops11h 13m

$328

CalgaryOntario

YYC - ONT

YYCONT

Calgary

mié. 9/3

6:15 am-12:32 pm

1 stop7h 17m

Ontario

sáb. 9/6

1:15 pm-9:48 pm

1 stop7h 33m

$354

VancouverOntario

YVR - ONT

YVRONT

Vancouver Intl

jue. 9/11

6:13 am-11:09 am

1 stop4h 56m

Ontario

dom. 9/14

6:00 am-10:38 am

1 stop4h 38m

$356

EdmontonOntario

YEG - ONT

YEGONT

Edmonton

vie. 9/19

5:17 pm-10:44 am

1 stop18h 27m

Ontario

sáb. 9/27

3:06 pm-10:49 am

1 stop18h 43m

$358

CalgaryOntario

YYC - ONT

YYCONT

Calgary

jue. 10/9

7:00 pm-12:03 am

1 stop6h 03m

Ontario

sáb. 10/18

5:45 pm-10:44 am

2 stops15h 59m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 $328). 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 julio 30, 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 julio 30, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
WestJet
7.2
Good
2,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave

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.

  • 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 $160. However, be on the lookout for offers from Alaska Airlines and American Airlines, 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 $328). 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 Los Angeles flights
Los Angeles to Las Vegas flights
John F Kennedy Intl to San Francisco flights
Dallas/Fort Worth to Los Angeles flights
Newark to San Francisco flights
Los Angeles to San Jose flights
Hobby to Las Vegas flights
Los Angeles to San Francisco flights
O'Hare Intl to Las Vegas flights
Newark to Las Vegas flights
Ontario to San Francisco flights
Denver to Las Vegas flights
LaGuardia to Los Angeles flights
Santa Ana to Las Vegas flights
LaGuardia to Las Vegas flights
Burbank to Las Vegas flights
Santa Ana to San Francisco flights
San Francisco to Los Angeles flights
Seattle to Los Angeles flights
Seattle to Las Vegas flights
San Jose to Los Angeles flights
Dulles Intl to Las Vegas flights
Boston to Las Vegas flights
Seattle to San Francisco flights
San Francisco to Ontario flights
San Francisco to Santa Ana flights
George Bush Intcntl to Las Vegas flights
San Francisco to Las Vegas flights
Seattle to San Diego flights
Baltimore to Las Vegas flights
Boston to Los Angeles flights
Oakland to Los Angeles flights
Dallas/Fort Worth to San Francisco flights
LaGuardia to San Francisco flights
O'Hare Intl to Los Angeles flights
San Jose to Las Vegas flights
Reagan-National to Los Angeles flights
Atlanta to Las Vegas flights
John F Kennedy Intl to Ontario flights
Fort Lauderdale to Las Vegas flights
O'Hare Intl to San Francisco flights
Santa Ana to Oakland flights
Oakland to Las Vegas flights
Newark to Burbank flights
Newark to San Diego flights
John F Kennedy Intl to San Diego flights
Dulles Intl to Los Angeles 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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$274Average$467FlexibilityNo cancel feeOn-time69%
DeltaCheapest$294Average$357FlexibilityNo 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.