YXU

C$ 163 Find Cheap Flights from Ontario to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 5/6. 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

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Cheap Flights from Ontario to London

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

Fri, 5 Jun - Fri, 12 Jun
Multiple Airlines Logo
8:00 a.m. - 1:50 p.m.
YYZ
-
YXU
5h 50m
1 stop
Multiple Airlines Logo
2:40 p.m. - 8:40 p.m.
YXU
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YYZ
6h 00m
1 stop
C$ 422Multiple Airlines
Mon, 8 Jun - Sun, 14 Jun
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5:45 p.m. - 1:50 p.m.
YYZ
-
YXU
20h 05m
1 stop
Multiple Airlines Logo
2:40 p.m. - 9:35 p.m.
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YYZ
6h 55m
1 stop
C$ 440Multiple Airlines
Thu, 4 Jun - Sun, 7 Jun
WestJet Logo
12:25 p.m. - 1:50 p.m.
YOW
-
YXU
25h 25m
1 stop
WestJet Logo
2:40 p.m. - 12:20 a.m.
YXU
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YOW
9h 40m
2 stops
C$ 448WestJet
Thu, 4 Jun - Sun, 7 Jun
WestJet Logo
12:25 p.m. - 1:50 p.m.
YOW
-
YXU
25h 25m
1 stop
WestJet Logo
2:40 p.m. - 12:20 a.m.
YXU
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YOW
9h 40m
2 stops
C$ 451WestJet
Thu, 4 Jun - Sun, 7 Jun
WestJet Logo
6:55 a.m. - 1:50 p.m.
YOW
-
YXU
30h 55m
2 stops
WestJet Logo
2:40 p.m. - 12:20 a.m.
YXU
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YOW
9h 40m
2 stops
C$ 459WestJet
Fri, 5 Jun - Fri, 12 Jun
Air Canada Logo
7:55 a.m. - 8:43 a.m.
YYZ
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YXU
0h 48mdirect
Air Canada Logo
3:30 p.m. - 4:18 p.m.
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-
YYZ
0h 48mdirect
C$ 515Air Canada
Wed, 3 Jun - Wed, 10 Jun
Air Canada Logo
7:55 a.m. - 8:43 a.m.
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YXU
0h 48mdirect
Air Canada Logo
5:10 a.m. - 5:58 a.m.
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YYZ
0h 48mdirect
C$ 517Air Canada
Mon, 8 Jun - Mon, 22 Jun
Air Canada Logo
2:10 p.m. - 2:58 p.m.
YYZ
-
YXU
0h 48mdirect
Air Canada Logo
10:05 a.m. - 10:49 a.m.
YXU
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YYZ
0h 44mdirect
C$ 533Air Canada
Mon, 1 Jun - Thu, 4 Jun
Air Canada Logo
4:45 p.m. - 5:33 p.m.
YYZ
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YXU
0h 48mdirect
Air Canada Logo
6:10 p.m. - 6:58 p.m.
YXU
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YYZ
0h 48mdirect
C$ 537Air Canada
Sat, 6 Jun - Fri, 12 Jun
Multiple Airlines Logo
9:15 a.m. - 1:50 p.m.
YTZ
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YXU
28h 35m
3 stops
Multiple Airlines Logo
2:40 p.m. - 4:33 p.m.
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YTZ
25h 53m
3 stops
C$ 798Multiple Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flightC$ 163
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (4% more expensive on average)
Flight from Toronto Pearson Airport to London

FAQs for booking flights from Ontario to London

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

    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 London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from 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 London?

    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 London with an airline and back to Ontario with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to London?

    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 London from 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 London

 
Need help choosing which airline to fly with from Ontario to London? 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.
7.2
WestJetOverall score based on 3332 reviews
6.1Entertainment
7.4Boarding
7.0Comfort
6.2Food
7.9Crew
Airline reviews

I didn’t have any food but my Prosecco hit the spot. We left on time and the crew was friendly.

10.0 ExcellentKimberley, Apr 2026
YYC - YOW
Read more WestJet reviews

I didn’t have any food but my Prosecco hit the spot. We left on time and the crew was friendly.

The flight didn’t happen because they apparently lost my check in and wouldn’t let me board.

I wasn’t able to book or pay for a seat and they forgot to check me in for my third flight so I spent 24 hours in Toronto waiting for another one.

Took 3 hours to check in and drop off our suitcases. Half of the passengers were still in line by boarding time. The computer systems and staff were very slow. Staff were also disorganized and kept allowing later flights to skip lines. Suitcases were piling on that several other passengers didn't get their suitcases. Then, we were sitting in the plane for 2 hours and were told that the flight was overbooked. We missed our connecting flight and had to fly the following day but with a stop over. Good thing ONE WestJet customer rep was pleasant and actually knew how to do her job when we wanted to rebook to a direct flight. Thank you to Kim at Toronto airport. Terrible experience at PUJ. Won't go back to Dominican Republic.

I like the wider seats, Plus lots of legroom, Lacking entertainment, no tv or screen to play with

There is no snack and nit much that would be considered gluten free in yiur food selections. One of your snacks should be a gluten free cookie or small bar etc. maybe it was me but I didn’t see any free movies just internet connection and YouTube .

The keg from Edmonton to Toronto My wife found it very cold. Other than that great flight.

No dogs! Can we have no dogs in the cabin? Why was there a yappy little dog behind me? Lucky I had ear plugs. Sorry for others without

Good value, minor delay due to waiting for inbound plane but they gave accurate information about wait time. Able to switch to a seat by my husband thanks to a kind flight attendant

Arrival at Comox from, London,ON 6 hours later... No bueano

Complimentary food options could be better. There should be a little wait between people boarding with children under 6 and the rest of the boarding. There isn’t enough time to get yourself situated before take off.

I was tired enough to fall asleep soon after takeoff and slept until "we are starting our descent to Toronto" announcement. That's not bad at all.

Very tight seats - no legroom at all, very tight to the person in front of you. If you have basic fare, you are loading zone 6 regardless of where you are sitting in the plane - meaning even as a middle aisle person at the front of the plane, I had to get people to get up and let me in as they had boarded earlier. Having to pay for a carry on is criminal. I am a frequent flyer, and air Canada has now joined the list of other terrible North American Airlines.

The crew was amazing! I was a bit surprised and disappointed that there was not wifi available for personal use. The only thing I would change would be the seat cushions. They are not comfortable at all for long flights.

Boarding went smoothly and on time. No entertainment system and only a cookie for breakfast.

This was my second leg of my trip and was delayed so was worried about my connection in Montreal. Still hungry so on boarding I asked a flight attendant if I could use my $14.00 voucher on the plane for food as I was starving. She said she would check and let me know but she never came back. So no food again as none was offered. Had to get my bags and check them again and that was ok but don’t understand why I had to go through security and because of them almost missed my flight. No food offered nor possibility to purchase food so still hungry and just watched a movie and hoped I could get food when I landed. Was able to use the $14.00 voucher to buy something and had my family bring food as I was now starving. I’ve been travelling on AC for years and this was my worst experience ever. After our flight got cancelled in SXM and was told the staff there didn’t work for AC so couldn’t do much to help us was not a good experience

Delayed by 5+ hours and they give a voucher for only $20 CAD which isn’t even redeemable at any place with edible food. Then took almost an hour to clean craft after it landed. And nonsensical boarding delayed even further. We didn’t leave until 1:30am….

Crowded and tight fit on Rouge. Entertainment requires your own mobile device. Small bag of pretzels is only food for 3.5 hour flight.

Other than flights being cancelled and 3.5 hours late causing missed connections it was ok.

The plane was almost an hour delayed and then once we were on board, they said that captain didn’t have enough hours left in his day to fly us so they had to find another captain. Surely that could’ve been figured out out in advance. Incredibly frustrating because I missed my connection in Toronto, and it has a result missed the first day of my conference in Charlotte, North Carolina.

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