$135 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 4/7. 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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$214
Overall average: $367
Multiple Airlines
Thu 3/5Thu 3/12
YVR - ONT • 1 stop
Cheapest one-way
$135
Typical prices: $177-$345
United Airlines
Tue 4/7
YVR - ONT • 1 stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
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

Thu, Mar 5 - Thu, Mar 12
Multiple Airlines Logo
5:30 pm - 8:06 am
YVR
-
ONT
14h 36m
1 stop
Multiple Airlines Logo
2:06 pm - 10:20 pm
ONT
-
YVR
8h 14m
1 stop
$214Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
Multiple Airlines Logo
7:10 am - 9:34 pm
YVR
-
ONT
14h 24m
2 stops
Multiple Airlines Logo
10:03 pm - 10:20 pm
ONT
-
YVR
24h 17m
1 stop
$217Multiple Airlines
Fri, Feb 6 - Mon, Feb 9
Multiple Airlines Logo
5:45 pm - 11:56 pm
YVR
-
ONT
6h 11m
1 stop
Multiple Airlines Logo
1:05 pm - 10:20 pm
ONT
-
YVR
9h 15m
1 stop
$218Multiple Airlines
Tue, Mar 3 - Tue, Mar 17
United Airlines Logo
12:25 pm - 5:41 pm
YVR
-
ONT
5h 16m
1 stop
United Airlines Logo
1:50 pm - 11:06 pm
ONT
-
YVR
9h 16m
1 stop
$224United Airlines
Wed, Feb 18 - Wed, Feb 25
United Airlines Logo
7:00 am - 12:48 pm
YVR
-
ONT
5h 48m
1 stop
United Airlines Logo
1:50 pm - 9:18 pm
ONT
-
YVR
7h 28m
1 stop
$231United Airlines
Wed, Apr 8 - Tue, Apr 14
Delta Logo
6:20 am - 11:18 am
YVR
-
ONT
4h 58m
1 stop
Delta Logo
5:05 pm - 10:31 pm
ONT
-
YVR
5h 26m
1 stop
$232Delta
Sat, Feb 7 - Tue, Feb 10
Alaska Airlines Logo
7:55 am - 3:08 pm
YVR
-
ONT
7h 13m
1 stop
Alaska Airlines Logo
11:53 am - 6:45 pm
ONT
-
YVR
6h 52m
1 stop
$240Alaska Airlines
Sat, Feb 28 - Sat, Mar 7
Lufthansa Logo
7:00 am - 5:41 pm
YVR
-
ONT
10h 41m
1 stop
Lufthansa Logo
5:15 am - 6:03 pm
ONT
-
YVR
12h 48m
1 stop
$244Lufthansa
Sat, Feb 28 - Wed, Mar 4
Alaska Airlines Logo
6:09 am - 11:08 am
YYJ
-
ONT
4h 59m
1 stop
Alaska Airlines Logo
6:14 am - 10:44 am
ONT
-
YYJ
4h 30m
1 stop
$314Alaska Airlines
Tue, Feb 17 - Tue, Feb 24
Delta Logo
7:40 am - 4:02 pm
YYC
-
ONT
9h 22m
1 stop
Delta Logo
1:10 pm - 11:05 pm
ONT
-
YYC
8h 55m
1 stop
$372Delta
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 are the most popular airlines flying to Ontario?

The most popular airline among KAYAK users flying to Ontario is Air Canada, followed by WestJet and Porter Airlines.

Good to know

Low seasonSeptember
Cheapest flight$135
Best time to beat the crowds but there is an average 21% increase in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Vancouver to Ontario

FAQs - booking Ontario flights

  • 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 639 direct flights from within Canada to Ontario. The most common day for departures is Friday, 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 9176 reviews
7.7Boarding
7.1Entertainment
8.1Crew
7.3Comfort
6.6Food
Airline reviews

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

6.0 GoodMichael, Jan 2026
PDX - SFO
Read more United Airlines reviews

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Both flights delayed. 2nd flight over 3 hours late mechanical issues

Flight was delayed 45 minutes because originating flight was coming from Newark. No complimentary snacks were offered on this 5+ hour flight. No screens for the flight, but movies offered if you had already downloaded the United app (which I hadn't on my ipad). No USB ports, only a flimsy plug-in port near the bottom of the seat that was hard to see and kept coming unplugged.

It was good but only meal served is very less. Meantime good to add rice and chicken in one of meal

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

On the way my flight entertainment wouldn’t work the screen went black and no matter how many times I tried to turn it on it wouldn’t. Food was surprisingly good but the tray tables were tiny so you couldn’t get anything else on the table. The seats hardly go back and are not overly comfortable. Wouldn’t fly United again.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Flight was late - I was downgraded from first class to coach

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario