$152 Find Cheap Flights from Canada to Ontario

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 6/5. 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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Booking Insights
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

Tue, Oct 27 - Fri, Oct 30
Delta Logo
5:15 pm - 10:43 pm
YVR
-
ONT
5h 28m
1 stop
Delta Logo
7:00 am - 2:40 pm
ONT
-
YVR
7h 40m
1 stop
$264Delta
Wed, Jul 15 - Tue, Jul 21
Delta Logo
6:15 am - 11:17 am
YVR
-
ONT
5h 02m
1 stop
Delta Logo
6:01 pm - 10:58 pm
ONT
-
YVR
4h 57m
1 stop
$265Delta
Tue, Nov 10 - Tue, Nov 17
American Airlines Logo
2:35 pm - 10:57 pm
YVR
-
ONT
9h 22m
1 stop
American Airlines Logo
11:59 pm - 11:27 pm
ONT
-
YVR
22h 28m
1 stop
$275American Airlines
Mon, Jun 8 - Mon, Jun 15
United Airlines Logo
7:00 am - 12:12 pm
YVR
-
ONT
5h 12m
1 stop
United Airlines Logo
6:30 pm - 9:51 am
ONT
-
YVR
15h 21m
1 stop
$287United Airlines
Tue, Jun 9 - Tue, Jun 16
United Airlines Logo
2:55 pm - 10:37 pm
YVR
-
ONT
7h 42m
2 stops
United Airlines Logo
5:00 am - 6:18 pm
ONT
-
YVR
13h 18m
1 stop
$288United Airlines
Tue, Jul 28 - Tue, Aug 11
Alaska Airlines Logo
6:00 am - 11:14 am
YYC
-
ONT
6h 14m
1 stop
Alaska Airlines Logo
2:05 pm - 11:15 pm
ONT
-
YYC
8h 10m
1 stop
$371Alaska Airlines
Fri, Jul 10 - Wed, Jul 15
Multiple Airlines Logo
7:55 pm - 10:57 am
YYC
-
ONT
16h 02m
1 stop
Multiple Airlines Logo
3:40 pm - 5:25 pm
ONT
-
YYC
24h 45m
2 stops
$380Multiple Airlines
Wed, Jul 29 - Tue, Aug 4
Alaska Airlines Logo
6:00 am - 1:09 pm
YYC
-
ONT
8h 09m
1 stop
Alaska Airlines Logo
2:05 pm - 11:15 pm
ONT
-
YYC
8h 10m
1 stop
$386Alaska Airlines
Tue, Jun 9 - Tue, Jun 16
Multiple Airlines Logo
9:45 am - 12:48 pm
YYZ
-
ONT
30h 03m
1 stop
Multiple Airlines Logo
3:34 pm - 1:05 am
ONT
-
YYZ
30h 31m
2 stops
$406Multiple Airlines
Wed, Jun 10 - Wed, Jun 17
American Airlines Logo
4:11 pm - 9:31 am
YQB
-
ONT
20h 20m
2 stops
American Airlines Logo
2:18 pm - 1:16 pm
ONT
-
YQB
19h 58m
2 stops
$605American 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 72 hours.

In the last 3 days, the cheapest flight deal to Ontario was found on the route from Vancouver, at $264 return. The most popular connection is from Seattle to Ontario and KAYAK users have found round-trip deals for as low as $148 in the last 3 days.

Good to know

Low seasonFebruary
Cheapest flight$152
Best time to beat the crowds but there is an average 32% increase in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Vancouver to Ontario

FAQs - booking Ontario flights

  • What is the cheapest flight to Ontario?

    In the last 3 days, the cheapest flight deal to Ontario was found on the route from Vancouver, at $264 return. The most popular connection is from Seattle to Ontario and KAYAK users have found round-trip deals for as low as $148 in the last 3 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 1,282 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 airlines flying 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.
7.9
DeltaOverall score based on 8447 reviews
8.5Crew
7.2Food
8.1Boarding
7.8Entertainment
7.8Comfort
Airline reviews

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.

10.0 ExcellentDavid, Apr 2026
DTW - SFO
Read more Delta reviews

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).

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

Arlene was a great flight attendant. I also liked how one of the other flight attendants gave us a heads up about snacks and asked everyone to remove their headphones when it was their turn to order. Good idea.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

No complaints other than luggage carousel was incorrectly guiding passengers to the wrong carousel on the screen.

Seats were not super comfortable and food was not good at all. If I had a chance I would definitely fly a different airline. Of course they are better than any budget airline, but not by much.

Flew steerage class. Short on leg room unless you pay more. No window unless you pay more. Etc. United is trying to squeeze every cent from you. It doesn’t make for any loyalty.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Outstanding service, great food, friendly & efficient crew, safe & comfortable flight

Staff were not attentive, wifi did not work, cut my head in the bathroom due to the position of the soap on the sink, had blood running down my face, told staff, they had no expression no sympathy, didn't even say "sorry", they said "oh we will have a look at that" about 10 mins later the purser brought me a bandaid, still no sorry.... Shocking

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight was delayed from take off because only one runway was operational in San Francisco.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario