$149 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 5/19. 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

Fri, Jun 5 - Tue, Jun 9
United Airlines Logo
2:20 pm - 8:42 pm
YVR
-
ONT
6h 22m
1 stop
United Airlines Logo
1:50 pm - 11:22 pm
ONT
-
YVR
9h 32m
1 stop
$257United Airlines
Thu, Aug 13 - Mon, Aug 17
United Airlines Logo
7:00 am - 12:12 pm
YVR
-
ONT
5h 12m
1 stop
United Airlines Logo
1:44 pm - 8:59 pm
ONT
-
YVR
7h 15m
1 stop
$265United Airlines
Wed, Jul 29 - Tue, Aug 4
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
$266Delta
Wed, May 13 - Sun, May 24
WestJet Logo
11:45 am - 10:34 pm
YVR
-
ONT
10h 49m
2 stops
WestJet Logo
6:45 am - 3:55 pm
ONT
-
YVR
9h 10m
2 stops
$287WestJet
Wed, May 13 - Sun, May 24
WestJet Logo
6:20 am - 5:10 pm
YVR
-
ONT
10h 50m
1 stop
WestJet Logo
6:45 am - 5:40 pm
ONT
-
YVR
10h 55m
2 stops
$289WestJet
Sun, Oct 4 - Sat, Oct 17
Delta Logo
6:50 am - 4:14 pm
YVR
-
ONT
9h 24m
1 stop
Delta Logo
5:05 pm - 10:37 pm
ONT
-
YVR
5h 32m
1 stop
$303Delta
Thu, Jun 11 - Mon, Jun 22
Multiple Airlines Logo
3:50 pm - 3:08 pm
YYZ
-
ONT
26h 18m
2 stops
Multiple Airlines Logo
3:34 pm - 8:09 pm
ONT
-
YYZ
25h 35m
1 stop
$318Multiple Airlines
Wed, Jun 10 - Mon, Jun 22
Multiple Airlines Logo
9:00 am - 3:08 pm
YYZ
-
ONT
33h 08m
2 stops
Multiple Airlines Logo
3:34 pm - 8:09 pm
ONT
-
YYZ
25h 35m
1 stop
$319Multiple Airlines
Sat, Jun 6 - Wed, Aug 5
Air Canada Logo
6:00 am - 10:50 pm
YEG
-
ONT
17h 50m
2 stops
Air Canada Logo
6:00 am - 1:03 am
ONT
-
YEG
18h 03m
2 stops
$357Air Canada
Fri, Jun 19 - Tue, Jun 23
Air Canada Logo
5:25 am - 10:37 pm
YLW
-
ONT
17h 12m
2 stops
Air Canada Logo
1:50 pm - 11:29 pm
ONT
-
YLW
9h 39m
2 stops
$410Air Canada
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 $257 return. The most popular connection is from Seattle to Ontario and KAYAK users have found round-trip deals for as low as $144 in the last 3 days.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$149
Best time to beat the crowds but there is an average 34% increase in price.
Most popular time to fly and prices are also 24% 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 $257 return. The most popular connection is from Seattle to Ontario and KAYAK users have found round-trip deals for as low as $144 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 964 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 airline 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.
7.4
United AirlinesOverall score based on 9680 reviews
7.7Boarding
7.1Entertainment
8.1Crew
7.3Comfort
6.6Food
Airline reviews

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.

6.0 GoodAnonymous, Apr 2026
HND - SFO
Read more United Airlines reviews

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.

Dinner was good, but the breakfast served in the morning was horrible.

Packed in plane small uncomfortable seats elbow to elbow nobody wants to be in that situation for the money they paid

Checking in united could not figure out my star alliance gold. Baggage did not get marked priority and didn't receive boarding passes. When got to SFO lounge personal fixed everything Immediately

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

Ontario (ONT)