$123 Find Cheap Flights from Ontario 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 from Ontario to Ontario departing on 6/10. 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 in flight searches from Ontario to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Ontario, as well as popular online travel agencies
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Flight Deals

Book Cheap Ontario to Ontario Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario 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 Ontario to Ontario

Wed, Jun 3 - Mon, Jun 8
Multiple Airlines Logo
1:39 pm - 6:55 am
ONT
-
YYZ
14h 16m
2 stops
Multiple Airlines Logo
9:45 am - 3:09 pm
YYZ
-
ONT
8h 24m
1 stop
$294Multiple Airlines
Wed, Jun 3 - Tue, Jun 9
Multiple Airlines Logo
1:39 pm - 6:55 am
ONT
-
YYZ
14h 16m
2 stops
Multiple Airlines Logo
9:55 am - 7:48 pm
YYZ
-
ONT
12h 53m
1 stop
$297Multiple Airlines
Wed, Jun 3 - Fri, Jun 5
Multiple Airlines Logo
1:39 pm - 6:55 am
ONT
-
YYZ
14h 16m
2 stops
Multiple Airlines Logo
1:45 pm - 7:32 pm
YYZ
-
ONT
8h 47m
1 stop
$300Multiple Airlines
Tue, May 5 - Tue, May 12
American Airlines Logo
4:52 pm - 1:52 pm
ONT
-
YUL
18h 00m
2 stops
American Airlines Logo
7:45 am - 6:24 pm
YUL
-
ONT
13h 39m
2 stops
$465American Airlines
Sat, Aug 1 - Sat, Aug 8
United Airlines Logo
6:30 am - 4:41 pm
ONT
-
YTZ
7h 11m
1 stop
United Airlines Logo
12:15 pm - 10:51 pm
YTZ
-
ONT
13h 36m
1 stop
$515United Airlines
Tue, Jun 2 - Thu, Jun 4
Air Canada Logo
5:00 am - 10:06 am
ONT
-
YTZ
26h 06m
2 stops
Air Canada Logo
7:20 pm - 5:28 pm
YTZ
-
ONT
25h 08m
2 stops
$517Air Canada
Tue, Jun 2 - Thu, Jun 4
Air Canada Logo
5:00 am - 10:06 am
ONT
-
YTZ
26h 06m
2 stops
Air Canada Logo
7:20 pm - 5:28 pm
YTZ
-
ONT
25h 08m
2 stops
$518Air Canada
Wed, Apr 22 - Tue, Apr 28
American Airlines Logo
11:59 pm - 2:44 pm
ONT
-
YUL
11h 45m
1 stop
American Airlines Logo
7:45 am - 6:24 pm
YUL
-
ONT
13h 39m
2 stops
$521American Airlines
Tue, Jun 2 - Thu, Jun 4
United Airlines Logo
5:45 am - 10:06 am
ONT
-
YTZ
25h 21m
2 stops
United Airlines Logo
7:20 pm - 5:28 pm
YTZ
-
ONT
25h 08m
2 stops
$539United Airlines
Thu, Apr 23 - Tue, Apr 28
Delta Logo
12:49 pm - 11:51 pm
ONT
-
YUL
8h 02m
1 stop
Delta Logo
9:30 am - 9:00 pm
YUL
-
ONT
14h 30m
2 stops
$561Delta
Booking Insights

KAYAK's insights & trends for Ontario to Ontario flights

Get data-powered insights and trends into flights from Ontario to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Ontario to Region of Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Region of Ontario departing in June.

What is the cheapest month to fly from Ontario to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario 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 from Ontario to Ontario is April, when tickets cost $317 (return) on average. On the other hand, the most expensive months are January and February, when the average cost of round-trip tickets is $1,373 and $1,172 respectively.

Good to know

Low seasonJanuary
Cheapest flight$123
Best time to beat the crowds but there is an average 68% increase in price.
Most popular time to fly and prices are also 62% lower on average.
Flight from Ontario to Toronto

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from Ontario 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 from Ontario to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario 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 from Ontario 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 from Ontario 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 from Ontario 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 from Ontario to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Ontario to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario 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 9548 reviews
7.7Boarding
7.1Entertainment
8.1Crew
7.3Comfort
6.6Food
Airline reviews

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

6.0 GoodLawrence, Apr 2026
SFO - IAH
Read more United Airlines reviews

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

It was perfect! I've never flown with United before, but I definitely will in the future

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

The business class seat is exceptional. I wish the food is more palatable.

the entire flight felt off. The crew seemed uninterested and disengaged. The food service was really bad - overcooked, bland, weird food service. They actually woke us up to serve chicken wraps in the middle of the night, after dinner and before breakfast. Made no sense. Ultimately, I was glad they did though, because the breakfast had been held for so long it was inedible. Eggs, potatoes, sausage - all disgusting. We were asked to "honor" the lavatories for premium customers and stay in our own cabin: this was also strange. So people in economy didn't pay enough to use the closest toilet to them??? It's a toilet. All in all, not the experience I have come to expect from United Airlines. The return flight from Paris to SFO was better, btw.

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

Business class seats felt very cramped compared to other airlines.

OK, we were delayed and had to de plane and reboard.

The 777’s economy seat’s legroom was more tolerable than expected. I appreciate the reclining mechanism which slides the seat forward to minimize cannibalizing the space behind. The food was terrible: very salty.

Good boarding but extremely cold temperature in both flights (60 F!).

Very rude gate attendants in San Francisco who didn’t let me bring my little carry on (smaller than usual size) and after boarding I realized that there still were a lot of overhead compartment space (like a full section available in some spots). That made me lose 30 minutes at my destination at 1am and it could have broken something fragile that I had in it

I want to thank Carlos at the Miami AC desk - he was amazing and went over and above to help us out. Thank you Carlos and all the best to you!!! You made our faith in AC feel great! Sincerely, David Cubitt

Flight was canceled due to mechanical issues. After a considerable wait in the queue, Air Canada customer service was very helpful to get us on another flight. I am disappointed to report our rescheduled flight is for three days from now. Three days of extra expenses and inconvenience is unacceptable.

The flight left late and I didn’t get a glass of bubbly upon boarding (which I’m used to when booking business class on other flights), but otherwise it was a pleasant flight with lovely, helpful crew members and I enjoyed my meal.

Flight was canceled for a reason they knew hours before but did not mention. Next the gate chnage from 37 to 38 at least 10 times. Ridiculous.

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

I liked a lot , the flight attendant so nice ,the seat very comfortable I enjoyed the flight , I will do it again with Air Canada,

The crew was really nice. The plane seats were kinda small even for a 5’6” / 158 lbs person.

Re luggage I carried a backpack only. I did not check any bags in. However there were other passengers with carry on luggage going in the plane. My question is why are others allowed to have a carry on luggage inside the plane? Shouldn’t they have dropped it off at the gate? I’m asking because I could have brought the same thing instead of a backpack only. Please clarify for future reference. Thank you.

Everything you need to know for your flight from Ontario to Ontario

Information on your arrival and departure airports