C$ 217 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 7/9. 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

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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Flights 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$ 517
Thunder Bay
Thunder Bay1 stopC$ 672
Sudbury
Sudbury1 stopC$ 979
Timmins
Timmins3 stopsC$ 1,137
Ottawa
Ottawa1 stopC$ 517
Thunder Bay
Thunder Bay1 stopC$ 672
Sudbury
Sudbury1 stopC$ 979
Timmins
Timmins3 stopsC$ 1,137

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

Mon, 15 Sep - Fri, 19 Sep
Air Canada Logo
9:55 a.m. - 10:38 a.m.YXU-YYZ
0h 43mdirect
Air Canada Logo
8:40 p.m. - 9:27 p.m.YYZ-YXU
0h 47mdirect
C$ 507Air Canada
Find Deal
Fri, 3 Oct - Sun, 5 Oct
Air Canada Logo
6:15 a.m. - 9:14 a.m.YXU-YOW
2h 59m1 stop
Air Canada Logo
5:55 p.m. - 9:27 p.m.YOW-YXU
3h 32m1 stop
C$ 517Air Canada
Find Deal
Thu, 18 Sep - Sun, 21 Sep
Air Canada Logo
6:15 a.m. - 12:20 p.m.YXU-YUL
6h 05m1 stop
Air Canada Logo
6:00 a.m. - 9:17 a.m.YUL-YXU
3h 17m1 stop
C$ 523Air Canada
Find Deal
Mon, 15 Sep - Fri, 19 Sep
WestJet Logo
6:00 a.m. - 3:52 p.m.YXU-YYZ
9h 52m1 stop
WestJet Logo
8:00 p.m. - 5:12 a.m.YYZ-YXU
9h 12m1 stop
C$ 538WestJet
Find Deal
Thu, 2 Oct - Fri, 3 Oct
Air Canada Logo
9:55 a.m. - 2:20 p.m.YXU-YUL
4h 25m1 stop
Air Canada Logo
6:00 a.m. - 9:17 a.m.YUL-YXU
3h 17m1 stop
C$ 540Air Canada
Find Deal
Fri, 3 Oct - Sun, 5 Oct
WestJet Logo
6:00 a.m. - 2:46 p.m.YXU-YOW
8h 46m1 stop
WestJet Logo
7:15 p.m. - 5:12 a.m.YOW-YXU
9h 57m1 stop
C$ 564WestJet
Find Deal
Mon, 15 Sep - Fri, 19 Sep
 Logo
6:15 a.m. - 7:02 a.m.YXU-YYZ
0h 47mdirect
 Logo
8:00 p.m. - 5:12 a.m.YYZ-YXU
9h 12m1 stop
C$ 581
Find Deal
Thu, 7 Aug - Fri, 15 Aug
Air Canada Logo
5:45 p.m. - 6:34 p.m.YXU-YYZ
0h 49mdirect
Air Canada Logo
8:40 p.m. - 9:27 p.m.YYZ-YXU
0h 47mdirect
C$ 597Air Canada
Find Deal
Sun, 17 Aug - Sun, 24 Aug
Air Canada Logo
5:45 p.m. - 6:34 p.m.YXU-YYZ
0h 49mdirect
Air Canada Logo
8:30 a.m. - 9:17 a.m.YYZ-YXU
0h 47mdirect
C$ 608Air Canada
Find Deal
Sat, 16 Aug - Sat, 23 Aug
WestJet Logo
8:00 p.m. - 6:52 a.m.YXU-YYZ
10h 52m1 stop
WestJet Logo
8:00 p.m. - 5:14 a.m.YYZ-YXU
9h 14m1 stop
C$ 616WestJet
Find Deal
Useful Info

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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London to Ontario.

The cheapest ticket to Ontario from London found in the last 72 hours was to Toronto, at C$ 488 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$ 488.

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.

No, with an average price for the route of C$ 562, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London 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 London to Ontario is August, when tickets cost C$ 506 (return) on average. On the other hand, the most expensive months are November and March, when the average cost of round-trip tickets is C$ 854 and C$ 782 respectively.

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 Friday and avoiding Mondays for the best deals.


Good to know

Low seasonApril
High seasonSeptember
Cheapest flightC$ 217
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly (5% more expensive 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.

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

    The cheapest time of day to fly to Ontario is generally in the morning, when round-trip flights cost C$ 554 on average. Morning departures are around 14% cheaper than evening flights, on average. The most expensive time of day to fly to Ontario is generally at night, which is peak travel time and where the average cost of a ticket is C$ 778.

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$ 334 one-way - C$ 612 round-trip

Reviews of the top airlines 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.
7.2
WestJetOverall score based on 2917 reviews
7.1Comfort
7.4Boarding
6.1Entertainment
7.9Crew
6.2Food
Airline reviews

The seats very Uncomfortable, no meal and no entertainment for a 4Hours flight. Smooth Flight, Great Take off and landing. Superb crew!

10.0 ExcellentStanley, Jul 2025YYC - YXU
Read more WestJet reviews

The seats very Uncomfortable, no meal and no entertainment for a 4Hours flight. Smooth Flight, Great Take off and landing. Superb crew!

Generally good. However. The flight left 30 mins behind schedule with no reason given.

Flight delayed, missed my pick-up had to Uber, plus missed dinner and medication, so sad!

The flight attendants were super! They created a cosy and warm flight atmosphere!

West Jet flight was cancelled and I was not notified. I found out when I tried to check in on-line. Spent 4 hours on the phone with West Jet and Just Fly trying to figure what happened.

Not the greatest experience everything was pretty mediocre. My seat was by the washroom in the aisle and was not located well as everyone past each other people were right in my seat and space.

The small prop plane was crowded and the overhead luggage storage is a smaller than on the jets. Other than that, the crew was good, the flight was on time and the landing was smooth.

It was good, flight was on time, boarding was smooth and done in zones, food was good too but there was no form of entertainment. Luggage’s were intact. So an overall good flight

We never had an experience they canceled the flight and they did not offer us an alternative flight. I had to book one on my own expense. They offered us food voucher and we could not use them at the airport it kept saying not attached to an existing flight. The people at the counter were rude and cold and they did not care about our situation

Flight was delayed 3 times. Then cancelled due to pilot being timed out. They refused hotel vouchers. Gate attendants were very rude and could not help you at all.

At 6'2" the seat space was very cramped for economy. Otherwise good.

No issues other than paying twice for my seat selection.

Everything was great, clean plane and washrooms. Flight was on time, excellent boarding process

The app was great, service was wonderful, everything was quick and easy

Horrible. Multiple delays for every reason imaginable. Missed connection which led to missing work. How does a plane make a detour to refuel. Do the fueling then have to refuel a second time at the exact same spot? Mind blowing.

I had a great experience at YUL Air Canada. The service was top drawer as I needed help to board.

There was no food other than pretzels or a single cookie for a 4.5 hour flight. The in-flight entertainment system was not available on the back of the seat - instead I had to use my cell phone and the plane's wifi - which drained my battery even though my phone was plugged into the seat ahead of me and should have been charging - it did not. Very irritating.

Like- beer/wine for free Dis-like- all other aspects- customer service was horrible the entire trip. No help from Air Canada after they changed flight 6+ hours later. Also they put us on standby for no reason. Then almost 2 hours to get our bags after we arrived back at airport

This was actually a bus ride to the KW airport. It was smooth and comfortable and on time.

The plane in use lacked an entertainment system (perhaps because it was still being updated?). It was an overnight flight so it wasn't terrible but still. The actual seat was adequate but not great. As an economy flyer, food review is largely irrelevant. I am unhappy with this race to the bottom for services provided especially as it applies to baggage restrictions.

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

Information on your arrival and departure airports

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