C$ 171 Find Cheap Flights from London 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 London to Ontario departing on 14/6. 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

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 London 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 London to Ontario, as well as popular online travel agencies
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Flight Deals

Best Ontario Flight Deals from London

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Ottawa
Ottawa1 stopC$ 631
Thunder Bay
Thunder Bay1 stopC$ 511
Sudbury
Sudbury1 stopC$ 1,047
Ottawa
Ottawa1 stopC$ 631
Thunder Bay
Thunder Bay1 stopC$ 511
Sudbury
Sudbury1 stopC$ 1,047

Cheap Flights from London to Ontario

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

Tue, 19 May - Thu, 21 May
WestJet Logo
2:40 p.m. - 12:25 a.m.
YXU
-
YUL
9h 45m
2 stops
WestJet Logo
7:20 p.m. - 1:50 p.m.
YUL
-
YXU
18h 30m
2 stops
C$ 491WestJet
Tue, 2 Jun - Tue, 9 Jun
WestJet Logo
2:40 p.m. - 10:25 a.m.
YXU
-
YQT
19h 45m
1 stop
WestJet Logo
7:20 p.m. - 5:20 a.m.
YQT
-
YXU
10h 00m
2 stops
C$ 511WestJet
Thu, 21 May - Tue, 2 Jun
Air Canada Logo
6:10 p.m. - 6:58 p.m.
YXU
-
YYZ
0h 48mdirect
Air Canada Logo
10:55 a.m. - 11:43 a.m.
YYZ
-
YXU
0h 48mdirect
C$ 515Air Canada
Sat, 16 May - Sat, 23 May
Air Canada Logo
12:20 p.m. - 1:08 p.m.
YXU
-
YYZ
0h 48mdirect
Air Canada Logo
8:50 p.m. - 9:38 p.m.
YYZ
-
YXU
0h 48mdirect
C$ 533Air Canada
Mon, 8 Jun - Thu, 11 Jun
WestJet Logo
5:55 p.m. - 10:25 a.m.
YXU
-
YQT
16h 30m
2 stops
WestJet Logo
11:00 a.m. - 1:50 p.m.
YQT
-
YXU
26h 50m
1 stop
C$ 533WestJet
Sun, 21 Jun - Thu, 27 Aug
WestJet Logo
2:40 p.m. - 10:25 a.m.
YXU
-
YQT
19h 45m
1 stop
WestJet Logo
7:50 p.m. - 1:50 p.m.
YQT
-
YXU
18h 00m
2 stops
C$ 537WestJet
Mon, 8 Jun - Thu, 11 Jun
WestJet Logo
6:10 a.m. - 6:45 p.m.
YXU
-
YQT
12h 35m
2 stops
WestJet Logo
7:50 p.m. - 1:50 p.m.
YQT
-
YXU
18h 00m
2 stops
C$ 539WestJet
Fri, 5 Jun - Sat, 19 Sep
Air Canada Logo
5:10 a.m. - 5:58 a.m.
YXU
-
YYZ
0h 48mdirect
Air Canada Logo
2:05 p.m. - 2:55 p.m.
YYZ
-
YXU
0h 50mdirect
C$ 546Air Canada
Thu, 14 May - Sun, 17 May
Air Canada Logo
6:10 p.m. - 6:58 p.m.
YXU
-
YYZ
0h 48mdirect
Air Canada Logo
8:05 a.m. - 8:53 a.m.
YYZ
-
YXU
0h 48mdirect
C$ 553Air Canada
Sun, 31 May - Sun, 7 Jun
Multiple Airlines Logo
2:40 p.m. - 12:25 a.m.
YXU
-
YUL
9h 45m
2 stops
Multiple Airlines Logo
7:30 a.m. - 11:43 a.m.
YUL
-
YXU
4h 13m
1 stop
C$ 617Multiple Airlines
Booking Insights

KAYAK's insights & trends for London to Ontario flights

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

What is the cheapest London to Ontario flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ontario from London found in the last 72 hours was to Toronto, at C$ 478 round-trip. The most popular route is from London (YXU) to Toronto Pearson Intl Airport (YYZ), and the cheapest round-trip airline ticket found on this route in the last 72 hours was C$ 478.

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

The average price for all round-trip flights from London to Ontario depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ontario is generally in the morning, when round-trip flights cost C$ 795 on average. Morning departures are around 22% cheaper than evening flights, 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 C$ 1,024.

Can I save money by flying with a layover from London to Ontario?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at C$ 477 on average.

What’s the cheapest day of the week to fly from London to Ontario?

The average price of all round-trip flights from London to Ontario clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Ontario on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from London to Ontario. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

Good to know

Low seasonFebruary
Cheapest flightC$ 171
Best time to beat the crowds (31% less expensive on average)
Most popular time to fly and prices are also 10% lower on average.
Flight from London to Toronto

FAQs - booking Ontario flights

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to Ontario is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London 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 London 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 London 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 London to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Ontario

  • Looking for a cheap flight? 25% of our users found tickets from London to the following destinations at these prices or less: Toronto C$ 373 one-way - C$ 676 round-trip

Reviews of the top airline flying from London to Ontario

 
See real verified KAYAK customer reviews for airlines flying from London 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 London 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.
7.1
Air CanadaOverall score based on 10943 reviews
7.8Crew
7.1Comfort
6.3Food
7.3Boarding
6.8Entertainment
Airline reviews

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.

2.0 MediocreAnonymous, Apr 2026
YVR - YOW
Read more Air Canada reviews

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.

Flight from saskatoon to toronto was by far the worst flight ive ever been on and roughest landing ever.

Mechanical issue caused me to be stuck in Vancouver for 2 days

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

Information on your arrival and departure airports