£254 Find Cheap Flights from Ontario to the United Kingdom

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 the United Kingdom departing on 28/11. 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, 0 bags

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Cheap Flights from Ontario to the United Kingdom

Cheapest return prices found by our users on KAYAK in the last 72 hours
London
London1 stop£449
Edinburgh
Edinburgh2 stops£470
Birmingham
Birmingham2 stops£550
Belfast
Belfast2 stops£716
Newcastle upon Tyne
Newcastle upon Tyne2 stops£605
London
London1 stop£449
Edinburgh
Edinburgh2 stops£470
Birmingham
Birmingham2 stops£550
Belfast
Belfast2 stops£716
Newcastle upon Tyne
Newcastle upon Tyne2 stops£605

Book Cheap Ontario to the United Kingdom Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ontario to the United Kingdom 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 return flight deals from Ontario to the United Kingdom

Tue, 2 Dec - Tue, 16 Dec
Virgin Atlantic Logo
06:40 - 10:30ONT-LHR
19h 50m1 stop
Virgin Atlantic Logo
10:45 - 23:58LHR-ONT
21h 13m1 stop
£449Virgin Atlantic
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Mon, 5 Jan - Tue, 20 Jan
Virgin Atlantic Logo
07:30 - 12:50ONT-LHR
21h 20m1 stop
Virgin Atlantic Logo
10:45 - 23:58LHR-ONT
21h 13m1 stop
£454Virgin Atlantic
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Tue, 2 Dec - Tue, 9 Dec
Delta Logo
06:40 - 10:30ONT-LHR
19h 50m1 stop
Delta Logo
06:30 - 19:39LHR-ONT
21h 09m2 stops
£464Delta
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Tue, 25 Nov - Wed, 14 Jan
British Airways Logo
07:00 - 06:50ONT-LHR
15h 50m1 stop
British Airways Logo
15:00 - 22:49LHR-ONT
15h 49m1 stop
£467British Airways
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Thu, 27 Nov - Wed, 3 Dec
Delta Logo
06:00 - 10:30ONT-MAN
20h 30m2 stops
Delta Logo
13:30 - 11:13MAN-ONT
29h 43m2 stops
£469Delta
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Tue, 18 Nov - Fri, 5 Dec
British Airways Logo
12:46 - 10:00ONT-LHR
13h 14m1 stop
British Airways Logo
08:20 - 18:17LHR-ONT
17h 57m1 stop
£469British Airways
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Sun, 1 Feb - Thu, 12 Feb
United Airlines Logo
06:00 - 07:55ONT-EDI
17h 55m2 stops
United Airlines Logo
09:25 - 21:59EDI-ONT
20h 34m2 stops
£470United Airlines
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Tue, 2 Dec - Tue, 16 Dec
Multiple Airlines Logo
10:47 - 08:35ONT-LHR
13h 48m1 stop
Multiple Airlines Logo
11:45 - 19:39LHR-ONT
15h 54m1 stop
£470Multiple Airlines
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Sun, 9 Nov - Tue, 25 Nov
Multiple Airlines Logo
14:53 - 11:40ONT-LHR
12h 47m1 stop
Multiple Airlines Logo
10:05 - 18:22LHR-ONT
16h 17m1 stop
£471Multiple Airlines
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Tue, 18 Nov - Tue, 16 Dec
United Airlines Logo
07:00 - 10:20ONT-MAN
19h 20m2 stops
United Airlines Logo
06:10 - 22:49MAN-ONT
24h 39m3 stops
£484United Airlines
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Booking Insights

KAYAK's insights & trends for Ontario to the United Kingdom flights

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

What is the cheapest month to fly from Ontario to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to the United Kingdom, 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 the United Kingdom is October, when tickets cost £515 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is £807 and £703 respectively.

How far in advance should I book a flight from Ontario to the United Kingdom?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to the United Kingdom, 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 Ontario to the United Kingdom, you should book around 4 weeks before departure, which saves you about 12% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

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Good to know - Cheap tickets from Ontario to the United Kingdom

Low seasonNovember
Cheapest flight£254
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly and prices are also 15% lower on average.
Flight from Ontario to London Heathrow Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Ontario to the United Kingdom?

    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 the United Kingdom.

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Ontario to the United Kingdom 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 the United Kingdom?

    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 the United Kingdom 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 the United Kingdom?

    The cheapest time of day to fly to the United Kingdom is generally in the afternoon, when retur flights cost £539 on average. Morning departures are around 12% more expensive than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the morning, which is peak travel time and where the average cost of a ticket is £657.

Everything you need to know for your flight from Ontario to the United Kingdom

Information on your arrival and departure airports

Ontario (ONT)

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