$159 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 8/12. 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.
1 adult
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

Thu, Jul 23 - Tue, Jul 28
United Airlines Logo
7:00 am - 12:12 pm
YVR
-
ONT
5h 12m
1 stop
United Airlines Logo
1:50 pm - 8:59 pm
ONT
-
YVR
7h 09m
1 stop
$278United Airlines
Fri, Jul 17 - Mon, Jul 20
Delta Logo
6:45 am - 12:10 pm
YVR
-
ONT
5h 25m
1 stop
Delta Logo
5:10 pm - 10:28 pm
ONT
-
YVR
5h 18m
1 stop
$279Delta
Fri, Aug 14 - Mon, Aug 17
Lufthansa Logo
7:00 am - 8:01 pm
YVR
-
ONT
13h 01m
1 stop
Lufthansa Logo
9:01 am - 11:22 pm
ONT
-
YVR
14h 21m
1 stop
$286Lufthansa
Wed, Sep 2 - Wed, Sep 9
United Airlines Logo
7:00 am - 12:12 pm
YVR
-
ONT
5h 12m
1 stop
United Airlines Logo
6:08 am - 10:48 am
ONT
-
YVR
4h 40m
1 stop
$287United Airlines
Tue, Sep 22 - Thu, Sep 24
United Airlines Logo
7:00 am - 2:01 pm
YVR
-
ONT
7h 01m
1 stop
United Airlines Logo
6:00 am - 10:54 am
ONT
-
YVR
4h 54m
1 stop
$292United Airlines
Thu, Jul 23 - Sun, Aug 2
Delta Logo
6:15 am - 11:17 am
YVR
-
ONT
5h 02m
1 stop
Delta Logo
1:00 pm - 10:28 pm
ONT
-
YVR
9h 28m
1 stop
$298Delta
Fri, Jul 17 - Mon, Jul 20
KLM Logo
6:45 am - 12:10 pm
YVR
-
ONT
5h 25m
1 stop
KLM Logo
5:10 pm - 10:28 pm
ONT
-
YVR
5h 18m
1 stop
$308KLM
Tue, Aug 11 - Tue, Aug 18
American Airlines Logo
3:45 pm - 9:34 am
YUL
-
ONT
20h 49m
1 stop
American Airlines Logo
12:33 pm - 2:44 pm
ONT
-
YUL
23h 11m
1 stop
$419American Airlines
Fri, Aug 21 - Thu, Aug 27
Lufthansa Logo
11:00 am - 8:01 pm
YYZ
-
ONT
12h 01m
2 stops
Lufthansa Logo
6:08 am - 10:23 pm
ONT
-
YYZ
13h 15m
2 stops
$423Lufthansa
Tue, Aug 11 - Tue, Aug 18
American Airlines Logo
3:45 pm - 9:34 am
YUL
-
ONT
20h 49m
1 stop
American Airlines Logo
12:59 pm - 11:43 am
ONT
-
YUL
19h 44m
2 stops
$429American 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 $278 return. The most popular connection is from Toronto to Ontario and KAYAK users have found round-trip deals for as low as $423 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 August, where tickets cost $112 on average for return flights. On the other hand, the most expensive months are March and May, where the average cost of tickets from Canada is $405 and $323 respectively. For one-way flights, the best month to travel is April with an average price of $86.

Good to know

Low seasonFebruary
Cheapest flight$159
Best time to beat the crowds but there is an average 42% increase in price.
Most popular time to fly with an average 4% increase in price.
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 $278 return. The most popular connection is from Toronto to Ontario and KAYAK users have found round-trip deals for as low as $423 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 1,264 direct flights from within Canada to Ontario. The most common day for departures is Sunday, with 17% 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 8453 reviews
7.8Comfort
7.8Entertainment
8.5Crew
8.1Boarding
7.2Food
Airline reviews

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.

4.0 OkayKristen, Jun 2026
HND - LAX
Read more Delta reviews

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 sat on the runway for over an hour before departure. That was unwelcome.

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

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

Connection coordination with Star Alliance partner could be better. Lots of check in setup was not interlinked between operators.

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.

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

The flight attendant was very polite and attentive. The food was good.

I had a comfortable and enjoyable experience. The entertainment options were plentiful, the food was appetizing, the snacks were tasty, and the staff was friendly, professional, and helpful.

Flight cancelled. Twice. And no communication. No gate agent. Went past boarding time and had to go and see email from AA. Airport communication was bad

It was so much better than expected, Ohare is not such a pleasant experience but American Airlines with the new, clean aeroplane and free Wi-Fi was outstanding and the crew so pleasant and helpful.

This was my first flight on Aer Lingus and it was great. The plane wasn't full so I could move to a seat with extra room. The food was pretty good for airline food and the staff was nice and attentive. I enjoyed the media provided during my 10 hour flight. We arrived home early and it's always good to be home!

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