£259 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 30/1. 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£462
Edinburgh
Edinburgh2 stops£456
Birmingham
Birmingham2 stops£475
Belfast
Belfast2 stops£627
Newcastle upon Tyne
Newcastle upon Tyne2 stops£532
London
London1 stop£462
Edinburgh
Edinburgh2 stops£456
Birmingham
Birmingham2 stops£475
Belfast
Belfast2 stops£627
Newcastle upon Tyne
Newcastle upon Tyne2 stops£532

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

Fri, 20 Feb - Thu, 26 Feb
British Airways Logo
17:06 - 18:00
ONT
-
GLA
16h 54m2 stops
British Airways Logo
20:20 - 22:04
GLA
-
ONT
33h 44m2 stops
£454British Airways
Fri, 13 Feb - Sat, 21 Feb
British Airways Logo
17:06 - 18:25
ONT
-
EDI
17h 19m2 stops
British Airways Logo
16:10 - 22:04
EDI
-
ONT
37h 54m2 stops
£456British Airways
Thu, 22 Jan - Thu, 29 Jan
British Airways Logo
15:09 - 16:30
ONT
-
MAN
17h 21m2 stops
British Airways Logo
11:40 - 22:48
MAN
-
ONT
19h 08m2 stops
£461British Airways
Sat, 7 Feb - Sat, 21 Feb
Virgin Atlantic Logo
12:41 - 11:40
ONT
-
LHR
14h 59m1 stop
Virgin Atlantic Logo
10:45 - 21:44
LHR
-
ONT
18h 59m1 stop
£462Virgin Atlantic
Mon, 12 Jan - Wed, 21 Jan
United Airlines Logo
06:00 - 07:55
ONT
-
EDI
17h 55m2 stops
United Airlines Logo
09:25 - 21:58
EDI
-
ONT
20h 33m2 stops
£464United Airlines
Wed, 31 Dec - Thu, 15 Jan
American Airlines Logo
12:45 - 16:20
ONT
-
MAN
19h 35m2 stops
American Airlines Logo
09:45 - 22:13
MAN
-
ONT
20h 28m2 stops
£465American Airlines
Fri, 13 Feb - Mon, 23 Feb
British Airways Logo
17:06 - 20:25
ONT
-
GLA
19h 19m2 stops
British Airways Logo
07:35 - 22:49
GLA
-
ONT
23h 14m2 stops
£465British Airways
Sun, 11 Jan - Tue, 20 Jan
Multiple Airlines Logo
13:46 - 14:25
ONT
-
EDI
16h 39m2 stops
Multiple Airlines Logo
06:50 - 22:48
EDI
-
ONT
23h 58m2 stops
£467Multiple Airlines
Tue, 20 Jan - Tue, 27 Jan
Multiple Airlines Logo
05:05 - 11:50
ONT
-
LHR
22h 45m2 stops
Multiple Airlines Logo
09:30 - 21:58
LHR
-
ONT
20h 28m2 stops
£472Multiple Airlines
Fri, 30 Jan - Tue, 3 Feb
United Airlines Logo
13:53 - 12:00
ONT
-
LHR
14h 07m1 stop
United Airlines Logo
07:30 - 21:59
LHR
-
ONT
22h 29m2 stops
£478United Airlines
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 February, when tickets cost £491 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is £788 and £704 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 the flight from Ontario to the United Kingdom, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Find deals

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

Low seasonJanuary
Cheapest flight£189
Best time to beat the crowds but there is an average 1% increase in price.
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 £531 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 £647.

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

Information on your arrival and departure airports

Ontario (ONT)