$119 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 12/14. 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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Everything you should know

Cheapest round-trip
$181
Overall average: $466
Multiple Airlines
Wed 12/10Wed 12/17
YVR - ONT • 1 stop
Cheapest one-way
$119
Typical prices: $291-$462
Multiple Airlines
Sun 12/14
YVR - ONT • 1 stop
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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

Wed, Dec 10 - Wed, Dec 17
Multiple Airlines Logo
9:30 am - 9:17 pmYVR-ONT
11h 47m1 stop
Multiple Airlines Logo
6:15 am - 10:20 pmONT-YVR
16h 05m1 stop
$181Multiple Airlines
Find Deal
Tue, Dec 9 - Tue, Dec 16
Multiple Airlines Logo
7:00 am - 9:17 pmYVR-ONT
38h 17m2 stops
Multiple Airlines Logo
6:15 am - 10:20 pmONT-YVR
16h 05m1 stop
$215Multiple Airlines
Find Deal
Tue, Jan 20 - Tue, Jan 27
Alaska Airlines Logo
4:07 pm - 3:08 pmYLW-ONT
23h 01m1 stop
Alaska Airlines Logo
4:03 pm - 9:14 pmONT-YLW
5h 11m1 stop
$325Alaska Airlines
Find Deal
Tue, Mar 3 - Tue, Mar 10
Alaska Airlines Logo
8:00 am - 3:08 pmYLW-ONT
7h 08m1 stop
Alaska Airlines Logo
4:02 pm - 9:12 pmONT-YLW
5h 10m1 stop
$327Alaska Airlines
Find Deal
Tue, May 5 - Sat, May 9
United Airlines Logo
3:22 pm - 11:06 pmYYC-ONT
8h 44m1 stop
United Airlines Logo
6:53 pm - 12:03 pmONT-YYC
16h 10m1 stop
$381United Airlines
Find Deal
Wed, Apr 15 - Wed, Apr 22
United Airlines Logo
6:00 am - 5:47 pmYEG-ONT
12h 47m2 stops
United Airlines Logo
5:10 am - 10:19 pmONT-YEG
16h 09m1 stop
$403United Airlines
Find Deal
Tue, Jan 20 - Fri, Jan 23
Delta Logo
6:35 am - 10:29 pmYWG-ONT
17h 54m2 stops
Delta Logo
7:30 am - 11:38 pmONT-YWG
14h 08m2 stops
$479Delta
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Wed, Jan 21 - Fri, Jan 23
Delta Logo
6:35 am - 10:29 pmYWG-ONT
17h 54m2 stops
Delta Logo
7:30 am - 11:38 pmONT-YWG
14h 08m2 stops
$505Delta
Find Deal
Tue, Jan 20 - Sat, Jan 24
Air Canada Logo
6:00 am - 8:58 pmYWG-ONT
16h 58m2 stops
Air Canada Logo
1:53 pm - 12:59 pmONT-YWG
21h 06m2 stops
$534Air Canada
Find Deal
Thu, Jan 8 - Wed, Jan 14
Air Canada Logo
6:00 am - 5:43 pmYWG-ONT
13h 43m2 stops
Air Canada Logo
6:00 am - 9:04 pmONT-YWG
13h 04m2 stops
$546Air Canada
Find Deal
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$119
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 23% 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.

  • What is the cheapest day to fly to Ontario?

    Based on KAYAK data, the cheapest day to fly to Ontario is Friday where tickets can be as cheap as $330. On the other hand, the most expensive day to fly is Sunday, where prices are $593 on average.

  • 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.

  • What is the cheapest time of day to fly to Ontario?

    The cheapest time of day to fly to Ontario is generally at night, when flights cost $258 on average. The most expensive time of day to fly to Ontario is generally in the evening, which is peak travel time and where the average cost of a ticket is $451.

  • How many direct flights to Ontario are there each week?

    Each week there are around 756 direct flights from within Canada to Ontario. The most common day for departures is Monday, 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 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 8009 reviews
7.9Entertainment
8.5Crew
7.9Comfort
8.1Boarding
7.3Food
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

The crew took good care of us. The flight from ATL to SFO is a longer one, and there were multiple beverage offerings. I like the 757's that Delta uses. Good airplane that is comfortable. I do wish Delta would separate Priority boarding from the better seats. I would gladly take a smaller seat in an open row than be jammed into Comfort just to get priority boarding, just to make sure I don't have to check a bag.

The crew was not very visible. This might be a good thing for people who wanted to sleep but seemed odd when compared to the Atlantic crossing where they are more present in the cabin. The Food (beef) was not good. Tough and tasteless. Would love to see more choices on a long flight like that.

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

The flight crew was friendly. I tried to adjust my seat online ahead of time but no option existed without additional fees. My friend asked at the gate about a seat change and was able to make it happen. That was great! The flight crew moved a very tall gentleman and his companion which allowed us to have more space which was nice. Overall, good experience. Appreciated the blanket and pillow.

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

Food was surprisingly good but the WiFi was not great

My flight was extremely cold. I had a jacket and a cover was left in each seat. The cover was extremely thin and I have a disability, fibromyalgia and arthrithis and AC air is the worst. I closed my vent and my husbands vent and it still was frigid. I asked the attendant if I could get another cover and she quickly almost dismissively and totally unconcerned stating, (I quote) (one per chair) and walked off so quickly that I didn't get a chance to explain to her that I literally have adisability. I didnt want to make a seen so I set on that flight for over 5 hours in pain, joints locking up and extremely uncomfortable. When my fibromyalgia flares up my joints not only ache but they will lock up also and it takes me days to get back to my regular self even though I take medication for it. I felt like it would not have hurt anyone at all for her to just give me an extra cover because I'm sure they have all types of medical issues in people that fly every day.

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

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

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

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

Check in was quick and easy during early hours. Flight was on time, and customer services was a plus.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario