$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 8/21. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
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Flight Deals

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 9 - Tue, Jul 14
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
Thu, Aug 6 - Mon, Aug 10
United Airlines Logo
7:00 am - 10:37 pm
YVR
-
ONT
15h 37m
1 stop
United Airlines Logo
6:00 am - 8:59 pm
ONT
-
YVR
14h 59m
1 stop
$279United Airlines
Wed, Aug 5 - Mon, Aug 10
Alaska Airlines Logo
6:00 am - 11:14 am
YVR
-
ONT
5h 14m
1 stop
Alaska Airlines Logo
5:26 pm - 11:59 pm
ONT
-
YVR
6h 33m
1 stop
$309Alaska Airlines
Thu, Oct 15 - Mon, Oct 19
Delta Logo
3:25 pm - 10:43 pm
YVR
-
ONT
7h 18m
1 stop
Delta Logo
5:05 pm - 10:37 pm
ONT
-
YVR
5h 32m
1 stop
$317Delta
Wed, Sep 30 - Fri, Oct 23
Delta Logo
7:45 am - 4:35 pm
YYC
-
ONT
9h 50m
1 stop
Delta Logo
1:00 pm - 11:13 pm
ONT
-
YYC
9h 13m
1 stop
$345Delta
Sat, Aug 22 - Tue, Aug 25
Multiple Airlines Logo
8:45 am - 11:50 pm
YYC
-
ONT
16h 05m
1 stop
Multiple Airlines Logo
6:00 am - 2:45 pm
ONT
-
YYC
7h 45m
1 stop
$353Multiple Airlines
Thu, Aug 6 - Thu, Aug 13
Multiple Airlines Logo
8:45 am - 11:50 pm
YYC
-
ONT
16h 05m
1 stop
Multiple Airlines Logo
8:58 am - 9:40 am
ONT
-
YYC
23h 42m
1 stop
$359Multiple Airlines
Thu, Dec 10 - Sun, Dec 13
Alaska Airlines Logo
8:05 am - 5:15 pm
YEG
-
ONT
10h 10m
2 stops
Alaska Airlines Logo
10:03 am - 8:27 pm
ONT
-
YEG
9h 24m
2 stops
$392Alaska Airlines
Mon, Aug 10 - Mon, Aug 17
American Airlines Logo
1:56 pm - 9:34 am
YQB
-
ONT
22h 38m
2 stops
American Airlines Logo
2:27 pm - 1:15 pm
ONT
-
YQB
19h 48m
2 stops
$426American Airlines
Tue, Aug 11 - Tue, Aug 18
American Airlines Logo
6:46 am - 6:47 pm
YYZ
-
ONT
15h 01m
1 stop
American Airlines Logo
12:33 pm - 10:54 pm
ONT
-
YYZ
7h 21m
1 stop
$426American 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 $415 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$153
Best time to beat the crowds but there is an average 44% increase in price.
Most popular time to fly with an average 1% 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 $415 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 1,042 direct flights from within Canada to Ontario. The most common day for departures is Friday, with 16% 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
8.5Crew
8.1Boarding
7.8Entertainment
7.2Food
Airline reviews

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.

10.0 ExcellentAnonymous, Jun 2026
SEA - LAX
Read more Delta reviews

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.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

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.

Marked by flight delays on all segments of the trip. Food in first class cabin was mediocre and overhead cabin storage was not adequate. Overall, the premium charge for first class cabin was poor and over hyped. This will be our last flight with UA.

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.

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!

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

The seat when "flat" was not flat and pad was too thin to cover it.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

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