$127 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 5/25. 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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 24% 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.

Flight Deals
Booking Insights
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

Tue, May 26 - Tue, Jun 2
Multiple Airlines Logo
6:00 am - 10:45 pm
ONT
-
YYZ
13h 45m
2 stops
Multiple Airlines Logo
9:55 am - 3:44 pm
YYZ
-
ONT
8h 49m
1 stop
$315Multiple Airlines
Wed, Jun 10 - Wed, Jun 17
Multiple Airlines Logo
1:33 pm - 5:45 am
ONT
-
YYZ
13h 12m
2 stops
Multiple Airlines Logo
9:55 am - 3:08 pm
YYZ
-
ONT
8h 13m
1 stop
$319Multiple Airlines
Mon, Jun 1 - Fri, Jun 5
United Airlines Logo
6:30 pm - 6:42 pm
ONT
-
YTZ
21h 12m
2 stops
United Airlines Logo
12:15 pm - 10:46 pm
YTZ
-
ONT
13h 31m
1 stop
$532United Airlines
Mon, Jun 1 - Fri, Jun 5
United Airlines Logo
5:00 am - 10:06 am
ONT
-
YTZ
26h 06m
2 stops
United Airlines Logo
7:20 pm - 9:55 pm
YTZ
-
ONT
29h 35m
2 stops
$537United Airlines
Mon, May 11 - Tue, May 19
Air Canada Logo
5:00 am - 7:52 pm
ONT
-
YTZ
11h 52m
2 stops
Air Canada Logo
10:45 am - 9:41 am
YTZ
-
ONT
25h 56m
2 stops
$575Air Canada
Sat, May 23 - Fri, May 29
Delta Logo
10:00 pm - 11:35 am
ONT
-
YUL
10h 35m
1 stop
Delta Logo
9:30 am - 9:48 pm
YUL
-
ONT
15h 18m
2 stops
$576Delta
Sat, May 23 - Fri, May 29
Delta Logo
6:00 am - 11:41 pm
ONT
-
YUL
14h 41m
2 stops
Delta Logo
9:30 am - 9:48 pm
YUL
-
ONT
15h 18m
2 stops
$581Delta
Tue, Jun 23 - Tue, Jun 30
American Airlines Logo
7:13 pm - 11:42 am
ONT
-
YUL
13h 29m
2 stops
American Airlines Logo
7:29 am - 6:21 pm
YUL
-
ONT
13h 52m
2 stops
$591American Airlines
Mon, May 11 - Wed, May 20
American Airlines Logo
11:59 pm - 1:52 pm
ONT
-
YUL
10h 53m
2 stops
American Airlines Logo
2:32 pm - 9:07 pm
YUL
-
ONT
9h 35m
1 stop
$597American Airlines
Mon, May 11 - Wed, May 20
Air Canada Logo
6:00 am - 8:41 pm
ONT
-
YUL
11h 41m
2 stops
Air Canada Logo
11:10 am - 8:36 pm
YUL
-
ONT
12h 26m
2 stops
$613Air Canada
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 May.

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 July, when tickets cost $122 (return) on average. On the other hand, the most expensive months are January and February, when the average cost of round-trip tickets is $1,005 and $636 respectively.

Good to know

Low seasonJanuary
Cheapest flight$127
Best time to beat the crowds but there is an average 75% increase in price.
Most popular time to fly and prices are also 60% 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 4 airlines serving 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.
7.9
DeltaOverall score based on 8465 reviews
8.5Crew
8.1Boarding
7.2Food
7.8Entertainment
7.9Comfort
Airline reviews

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!

10.0 ExcellentTeresa, Apr 2026
SMF - LAX
Read more Delta reviews

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!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I took seat 15A in anticipation of window seat, there is no window.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

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

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

Flight itself excellent, but delayed so missed connection & got to destination 2 hrs later

Due to cancellation of connecting flight (Lufthansa) I didn’t fly with United

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

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

Boarding gate at LAX was too crowded—two gates next to one another

On time departure and early arrival. Flight attendant very nice.

The business class layout of chairs was weired. You are sitting directly across stranger.,

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

Friendly crew is the only nice thing. Seats uncomfortable. Food and snacks horrible. Movies were the same as the first 10 hour flight two weeks before

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

We left at 1030 am pacific from LA and supposed to land at 7 pm Eastern in NY. They made a detour, stopped in Philadelphia and didn’t land till 1130 PM Eastern!!! Worst flight experience with no pilot communication with no explanation as to what was going on. Everyone was very frustrated to say the least.

I cancelled my ticket less than 24 hours deadline but I didn’t get refunded.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

shittiest airline in the hemisphere. To improve - start thinking you're flying people, not cattle

Easy boarding, inflight refreshments came on time and comfortable seat

It was good that our flight left early. It was a nice smooth flight and landing.

It was a problem because there was a delay where we sat before taking off from newark,then when landed in Toronto we sat on tarmac and they wouldn't let us out for a long period of time. When we finally were released to the airport in Toronto the attendant scanned our boarding pass that we were here for our connection to Brazil. We ran all the way to the gate and they said at the gate the door is shut so we can not let you on the plane. We explained that we were checked in by the attendant when we arrived at Toronto airport to go to Brazil and they should not have shut the door. We were ignored at the gate

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

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.

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

Information on your arrival and departure airports