C$ 444 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 14/11. 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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Flight Deals

Best Ontario Flight Deals from London

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Toronto
Toronto1 stopC$ 659
Ottawa
Ottawa1 stopC$ 879
Toronto
Toronto1 stopC$ 659
Ottawa
Ottawa1 stopC$ 879

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

Wed, 26 Nov - Sun, 30 Nov
Icelandair Logo
11:55 a.m. - 6:15 p.m.LGW-YYZ
11h 20m1 stop
Icelandair Logo
7:40 p.m. - 10:55 a.m.YYZ-LGW
10h 15m1 stop
C$ 659Icelandair
Find Deal
Thu, 27 Nov - Tue, 2 Dec
Icelandair Logo
11:55 a.m. - 6:15 p.m.LGW-YYZ
11h 20m1 stop
Icelandair Logo
7:40 p.m. - 10:55 a.m.YYZ-LGW
10h 15m1 stop
C$ 660Icelandair
Find Deal
Wed, 11 Mar - Wed, 18 Mar
Multiple Airlines Logo
6:40 p.m. - 9:55 a.m.LGW-YTZ
43h 15m2 stops
Multiple Airlines Logo
10:30 a.m. - 5:50 p.m.YTZ-LGW
27h 20m2 stops
C$ 671Multiple Airlines
Find Deal
Mon, 19 Jan - Mon, 26 Jan
TAP AIR PORTUGAL Logo
10:40 a.m. - 9:15 p.m.LGW-YYZ
15h 35m1 stop
TAP AIR PORTUGAL Logo
10:45 p.m. - 3:45 p.m.YYZ-LGW
12h 00m1 stop
C$ 685TAP AIR PORTUGAL
Find Deal
Mon, 17 Nov - Mon, 24 Nov
Multiple Airlines Logo
6:40 p.m. - 11:55 a.m.LGW-YTZ
46h 15m2 stops
Multiple Airlines Logo
8:30 a.m. - 5:50 p.m.YTZ-LGW
28h 20m2 stops
C$ 687Multiple Airlines
Find Deal
Thu, 13 Nov - Tue, 18 Nov
Air Transat Logo
11:40 a.m. - 6:25 p.m.LGW-YUL
11h 45m1 stop
Air Transat Logo
2:30 p.m. - 9:45 a.m.YUL-LGW
14h 15m1 stop
C$ 705Air Transat
Find Deal
Wed, 5 Nov - Sat, 8 Nov
Air Transat Logo
11:40 a.m. - 6:25 p.m.LGW-YUL
11h 45m1 stop
Air Transat Logo
5:25 p.m. - 9:45 a.m.YUL-LGW
11h 20m1 stop
C$ 708Air Transat
Find Deal
Sun, 8 Mar - Sun, 15 Mar
TAP AIR PORTUGAL Logo
10:40 a.m. - 10:15 p.m.LGW-YYZ
15h 35m1 stop
TAP AIR PORTUGAL Logo
6:30 p.m. - 3:45 p.m.YYZ-LGW
17h 15m1 stop
C$ 709TAP AIR PORTUGAL
Find Deal
Wed, 5 Nov - Wed, 12 Nov
SWISS Logo
6:40 p.m. - 4:10 p.m.LGW-YYZ
26h 30m1 stop
SWISS Logo
8:30 p.m. - 5:50 p.m.YYZ-LGW
16h 20m1 stop
C$ 716SWISS
Find Deal
Mon, 19 Jan - Mon, 2 Feb
SWISS Logo
6:40 p.m. - 4:05 p.m.LGW-YYZ
26h 25m1 stop
SWISS Logo
8:25 p.m. - 5:50 p.m.YYZ-LGW
16h 25m1 stop
C$ 729SWISS
Find Deal
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 Gatwick Airport 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 Gatwick Airport found in the last 72 hours was to Toronto, at C$ 627 round-trip. The most popular route is from London Gatwick Airport (LGW) to Toronto Pearson Intl Airport (YYZ), and the cheapest round-trip airline ticket found on this route in the last 72 hours was C$ 627.

Can I save money by flying with a layover from London Gatwick Airport 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 1 stop layover the cheapest option at C$ 808 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Gatwick Airport 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 Gatwick Airport to Ontario is February, when tickets cost C$ 642 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of round-trip tickets is C$ 1,025 and C$ 1,000 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 Gatwick Airport to Ontario clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Ontario on a Wednesday and more expensive on a Monday. On your return trip to London, you should consider flying back on a Sunday, and avoid Thursdays for better deals.

How far in advance should I book a flight from London Gatwick Airport to Ontario?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Gatwick Airport to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from London Gatwick Airport to Ontario, you should book around 5 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flightC$ 444
Best time to beat the crowds (29% less expensive on average)
Most popular time to fly (46% more expensive on average)
Flight from London Gatwick Airport to Montreal

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 evening, when round-trip flights cost C$ 836 on average. Morning departures are around 3% more expensive than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is C$ 861.

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: Montreal C$ 442 one-way - C$ 625 round-trip; Toronto C$ 525 one-way - C$ 776 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.
7.7
Air TransatOverall score based on 459 reviews
7.3Comfort
8.4Crew
7.9Boarding
7.0Entertainment
6.7Food
Airline reviews

Great flight great seats will absolutely fly with you again

10.0 ExcellentPatricia M, Oct 2025YEG - YUL
Read more Air Transat reviews

Great flight great seats will absolutely fly with you again

Porter airlines was good. I didn't have the best experience when booking through airfare assist however, as I got no final confirmation from them that the flight was booked until I called them. Even then, the confirmation code they gave me was incorrect and couldn't be used for check in. On a positive note airfare assist was actually picked up the phone relatively quickly when calling

The flight crew were very good, polite, and professional. Unfortunately, the rest of the experience left much to be desired. The food was extremely bland—almost tasteless. We chose the non vegetarian .The lasagna was just plain pasta with a tiny garnish and no seasoning. It felt like eating starch only, The bigger issue was with luggage and space. We boarded with three tickets, and while the seats in front of us were nearly empty, all the overhead compartments had already been filled by passengers boarding to the back. This left us and many others with no overhead storage for our carry-ons. Our bags couldn’t fit well under the seats either, which meant we lost the little legroom we had. The result was a horrible, cramped experience—sore knees, no space to stretch, and no way to rest or sleep comfortably. According to the crew this was a rather normal thing. It is obviously normal that people board with handbag and carry on but they should be only allowed to use their overhead compartment and under their seat not the way it is managed that all the spaces in the front of the plane being occupied by the people sitting way back in the plane.

Nice complete meal included and great services. Plus the plane was very clean.

Everything was horrible. On the day of my departure, I was denied check-in and boarding because my reservation only showed one of my last names, while my passport contains both. This minor discrepancy could have been easily corrected, but I was informed that no adjustment could be made. As a result, I lost not only my outbound flight but also my return flight and had to purchase a new ticket at a significantly higher cost.

This has been the worst experience I’ve ever had. Basically, I lost my round-trip tickets because one of my last names was missing, and you didn’t allow me to correct it. I had to purchase a full ticket again. Once I get home, I will start legal proceedings against you.

The crew were polite and courteous. The Pilot did an excellent landing. It was very smooth and gentle. My only regret is that I was charged twice for my luggage . The attendant gave me no receipt . I didn't realize until I was about to board. How can this be resolved? Thank you.

Very smooth flights Toronto to Rome and return. Crews were great, food was fine but very narrow seats and limited leg room. Aisle seats on our return helped with a bit more space.

YUL AIRPORT is the worst. 1 Hr to Get out of the plane, 1 Hr To Cross the Border. 1Hr waiting to be pick up curbside. Trafic is ubeliveble.

It’s ok just the boarding point is far too far

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

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