$153 Find Cheap Flights from Canada to Ontario - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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1 adult, Economy, 0 bags

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Cheap Flights from Canada to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Canada to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Canada to Ontario

Fri, Sep 11 - Sun, Sep 13
Delta Logo
6:15 am - 11:14 amYVR  Vancouver Intl-ONT Ontario
4h 59m1 stop Seattle/Tacoma Intl
Delta Logo
5:15 pm - 10:34 pmONT  Ontario-YVR Vancouver Intl
5h 19m1 stop Salt Lake City
$273Delta
Thu, Sep 10 - Fri, Sep 11
United Airlines Logo
9:47 am - 8:01 pmYVR  Vancouver Intl-ONT Ontario
10h 14m1 stop San Francisco
United Airlines Logo
5:00 am - 6:18 pmONT  Ontario-YVR Vancouver Intl
13h 18m1 stop Denver Intl
$274United Airlines
Fri, Sep 11 - Sun, Sep 13
United Airlines Logo
7:00 am - 12:12 pmYVR  Vancouver Intl-ONT Ontario
5h 12m1 stop San Francisco
United Airlines Logo
6:08 am - 8:59 pmONT  Ontario-YVR Vancouver Intl
14h 51m1 stop San Francisco
$274United Airlines
Fri, Sep 11 - Mon, Sep 14
United Airlines Logo
7:00 am - 12:12 pmYVR  Vancouver Intl-ONT Ontario
5h 12m1 stop San Francisco
United Airlines Logo
5:00 am - 6:18 pmONT  Ontario-YVR Vancouver Intl
13h 18m1 stop Denver Intl
$274United Airlines
Fri, Sep 11 - Sun, Sep 13
Delta Logo
6:15 am - 11:14 amYVR  Vancouver Intl-ONT Ontario
4h 59m1 stop Seattle/Tacoma Intl
Delta Logo
5:15 pm - 10:34 pmONT  Ontario-YVR Vancouver Intl
5h 19m1 stop Salt Lake City
$279Delta
Fri, Sep 11 - Mon, Sep 14
Delta Logo
3:35 pm - 10:40 pmYVR  Vancouver Intl-ONT Ontario
7h 05m1 stop Seattle/Tacoma Intl
Delta Logo
5:15 pm - 10:34 pmONT  Ontario-YVR Vancouver Intl
5h 19m1 stop Salt Lake City
$279Delta
Tue, Oct 6 - Tue, Oct 13
WestJet Logo
3:44 pm - 10:43 pmYVR  Vancouver Intl-ONT Ontario
6h 59m1 stop Seattle/Tacoma Intl
WestJet Logo
11:56 am - 9:13 pmONT  Ontario-YVR Vancouver Intl
9h 17m1 stop Seattle/Tacoma Intl
$282WestJet
Fri, Sep 11 - Mon, Sep 14
WestJet Logo
3:35 pm - 10:40 pmYVR  Vancouver Intl-ONT Ontario
7h 05m1 stop Seattle/Tacoma Intl
WestJet Logo
11:54 am - 10:59 pmONT  Ontario-YVR Vancouver Intl
11h 05m1 stop Seattle/Tacoma Intl
$283WestJet
Sat, Sep 19 - Sat, Sep 26
American Airlines Logo
6:46 am - 1:25 pmYYZ  Toronto Pearson Intl-ONT Ontario
9h 39m1 stop Dallas/Fort Worth
American Airlines Logo
6:00 am - 5:20 pmONT  Ontario-YYZ Toronto Pearson Intl
8h 20m1 stop Dallas/Fort Worth
$454American Airlines
Sat, Sep 5 - Sat, Sep 12
American Airlines Logo
6:46 am - 1:53 pmYYZ  Toronto Pearson Intl-ONT Ontario
10h 07m1 stop Dallas/Fort Worth
American Airlines Logo
2:22 pm - 10:59 amONT  Ontario-YYZ Toronto Pearson Intl
17h 37m2 stops Dallas/Fort Worth Chicago O'Hare Intl
$454American Airlines
Booking Insights

KAYAK's insights & trends for flights to Ontario

Get data-powered insights and trends for flights to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Ontario?

These are the best round-trip prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to Ontario was found on the route from Vancouver, at $273 return. The most popular connection is from Toronto to Ontario and KAYAK users have found round-trip deals for as low as $411 in the last 5 days.

What is the cheapest month to fly to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Ontario is April, where tickets cost $421 on average for return flights. On the other hand, the most expensive months are January and December, where the average cost of tickets from Canada is $751 and $669 respectively. For one-way flights, the best month to travel is October with an average price of $198.

Good to know

Low season

February

Cheapest flight

$153
Best time to beat the crowds but there is an average 42% increase in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Vancouver to Ontario

FAQs - booking Ontario flights

  • What is the cheapest flight to Ontario?

    In the last 5 days, the cheapest flight deal to Ontario was found on the route from Vancouver, at $273 return. The most popular connection is from Toronto to Ontario and KAYAK users have found round-trip deals for as low as $411 in the last 5 days.

  • How far is Ontario Airport from central Ontario?

    Central Ontario is 3 miles away from Ontario Airport.

  • What is the name of Ontario’s airport?

    There is only 1 airport in Ontario, called Ontario Airport (ONT). It can also be referred to as Ontario or Ontario Intl.

  • How does KAYAK find such low prices on flights to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Ontario are there each week?

    Each week there are around 980 direct flights from within Canada to Ontario. The most common day for departures is Sunday, with 18% of flights taking off on this day.

Top tips for finding cheap flights to Ontario

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Reviews of the top 3 airlines serving from Canada to Ontario

 
See real verified KAYAK customer reviews for airlines flying to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Canada to Ontario. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8502 reviews
7.2Food
7.8Entertainment
8.5Crew
7.8Comfort
8.1Boarding
Airline reviews

Both of my flights to and from JFK experienced significant delays. Most notably, my first flight was delayed by six hours due to crew members being affected by delays on a previous flight. While I understand that disruptions can occur, Delta’s staffing and operational planning should include sufficient contingency measures to handle situations like this rather than placing the full burden of those delays on customers. Additionally, the $12 meal voucher offered as compensation was inadequate, particularly given the high cost of food and beverages at the airport. Considering the length of the delay and the substantial inconvenience caused, I believe more meaningful compensation would have been appropriate.

4.0 OkayXizhe, Aug 2026
Read more Delta reviews

Both of my flights to and from JFK experienced significant delays. Most notably, my first flight was delayed by six hours due to crew members being affected by delays on a previous flight. While I understand that disruptions can occur, Delta’s staffing and operational planning should include sufficient contingency measures to handle situations like this rather than placing the full burden of those delays on customers. Additionally, the $12 meal voucher offered as compensation was inadequate, particularly given the high cost of food and beverages at the airport. Considering the length of the delay and the substantial inconvenience caused, I believe more meaningful compensation would have been appropriate.

Comfortable seats. Nice service online. Short flight, so not a lot of time to enjoy.

The flight was done by SkyWest only WIFI no entertainment center are available on the CRJ

Delta is always late. Ruined our first day of a short vacation. Timing is important. We pay to stay on an itinerary

We never made it on this flight because we missed our connection due to o delayed flight from Jackson.

We got stuck on the tarmac taxiing after landing early so we didn’t get off the plane until an hour later than we thought we would

It was okay. We were delayed for weather reasons, but the pilots and the flight control staff figured a way around the storm and were able to get us to Los Angeles safely. Not all the staff members were polite, but the entertainment on the flight was good.

I am a Diamond Medallion Delta traveller and this was a disappointing flight. They allowed half the flight to preboard before Delta One and Diamond Medallion. Once on the plane in my Delta Premium Select seat we were not given any welcome or greeting. Throughout the flight the flight attendant also did not make us feel any sort of special service or attention and even rushed us when she did bring us a snack to pick in the dark not even offering a light to look at what it was -- she was overall not helpful and not accommodating. for the extra cost of the seat it was honestly not a special experience this flight. heads up that even the warm cookies are now packaged. I ate nothing. There really was nothing that was special, stood out or exceptional. Luckily I mostly slept. But I was disappointed and question if I may try a different flight next time I go to Tokyo. The last few Delta flights have been less than great. which makes me very sad.

Crew was real good, flight was smooth and came in early.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We boarded the plane and were about to take off when we were notified that the tires had to be checked. Upon inspection, they were found to need replacement, so the entire plane had to be deboarded. After we exited the plane, United staff forced us to stay in the gate area by posting "Do Not Exit" signs on the doors connecting the gate area to the terminal. Many of us had already rebooked our flights and had no checked bags, but they told us we could not leave. This seemed inappropriate to hold people under false pretenses. When the agent told us we could leave, I asked them to please take down the "Do Not Exit" signs, as they were misleading. The agent refused, and I told them that it didn't feel right to hold people like that.

Friendly crew, but we were delayed for more than an hour and had to change planes due to maintenance issues.

Flight attendants had a little attitude. Food tastes no good.

Very poor. The flight was delayed from Toronto because some forget to do there job . I got to my connecting gate in San Francisco 10 minutes before the departure.but this didn’t let me board even though the flight was still there for an other 30 minutes. The the gentleman at the unite airline desk told me that they usually wait for passengers but air Canada called and told them not to we I been rerouted to Manila instead of Hong Kong . In San Francisco they mad me check in my carryon bag . I was told the it will directly go yo ho chi minn cuyt but I was told that by the Vietnams airline desk that’s not there I’m 10 hours behind my scheduled flight and looks like I I’m going without baggage. I don’t have a chance of catching ..

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

headphone jack didnt work for the first flight and not much variety

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Awful! We boarded and then sat on the plane for 50 mins before having to deplane due to a maintenance issue which should have been addressed before boarding. Then we had to change terminals as there was no other plane for us at the current terminal. Then we waited another 2 and a half hours to board again only to wait for 50 mins on the plane again for the snacks to be brought from the broken plane. And once we were on the flight we still only got the complimentary cookie and soda or water. No food vouchers provided even though we had waited over 3 hours for our flight.

Our experience with American Airlines was extremely disappointing and honestly made an already exhausting international journey much worse. After flying all the way from Melbourne and dealing with significant jet lag, the American Airlines experience at LAX was the last thing we needed. The terminal and boarding area felt very old and uncomfortable, with little to no air conditioning and only old fans running in the area. Boarding was also through outdoor stairs rather than a jet bridge, which felt especially inconvenient after such a long journey. Even though we were traveling First Class, the onboard experience was surprisingly poor. There were no meaningful snack options, no decent coffee available to order, and the aircraft was so small that there was barely enough overhead space for carry-on luggage. The staff experience was also disappointing and lacked the warmth or attentiveness we had experienced on our international flights. To make matters worse, the flight departed late, extending an already very long travel day. Overall, the combination of the outdated terminal, uncomfortable boarding process, limited First Class service, small aircraft, poor staff experience, and delay made this an extremely unpleasant final leg of our journey. It significantly worsened our exhaustion and jet lag rather than making the connection home easier. Unfortunately, this experience was bad enough that I do not plan to travel with American Airlines again in the future.

No food. I paid over $1.000 for my ticket for nuts and espresso beans.

My flight in Dallas had maintenance issues. Which caused us to missed our connecting flight in LA. We had to stay overnight in Los Angeles. American Airlines booked us a hotel. The hotel was the Holiday Inn. It was horrible. The whole hotel smelled like weed and there were people rambling all night long up and down the hallways. The carpets in the hallway and the room has stains. There was dirt on the floor. It was so nasty that I slept in my clothes.

Great. Clean. Seats comfortable. Food was free. Had new release movies.

I got bumped by Qantas to American Airlines incurring a 6 hr layover at lax. I was not happy

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

It was fine. I didn't love the food but it was at least a real attempt at serving a meal, unlike my earlier flight from Nashville to Dallas.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario