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Cheap flights from Ontario to the United Kingdom from C$ 254

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LHR
13 Jul — 20 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to United Kingdom

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to United Kingdom
Explore the most affordable flight options available from Ontario to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2026.

Sun 19/77:35 a.m.
YYZ
-
EDI
2 stops31h 15m
Multiple Airlines
Fri 24/711:55 p.m.
EDI
-
YYZ
2 stops26h 50m
Multiple Airlines
Deal found 12/6C$ 658
Sun 2/810:15 p.m.
YYZ
-
EDI
Nonstop6h 55m
Multiple Airlines
Sat 29/810:00 p.m.
EDI
-
YYZ
1 stop20h 20m
Multiple Airlines
Deal found 9/6C$ 660
Tue 18/810:15 p.m.
YYZ
-
EDI
Nonstop6h 55m
WestJet
Mon 24/811:30 a.m.
EDI
-
YYZ
Nonstop7h 40m
WestJet
Deal found 12/6C$ 661
Wed 29/710:15 p.m.
YYZ
-
EDI
Nonstop6h 55m
Multiple Airlines
Wed 12/89:20 a.m.
EDI
-
YYZ
1 stop33h 00m
Multiple Airlines
Deal found 11/6C$ 663
Thu 23/710:15 p.m.
YYZ
-
EDI
Nonstop6h 55m
Multiple Airlines
Thu 30/79:25 p.m.
EDI
-
YYZ
2 stops45h 35m
Multiple Airlines
Deal found 10/6C$ 664
Mon 17/810:15 p.m.
YYZ
-
EDI
Nonstop6h 55m
WestJet
Fri 28/811:30 a.m.
EDI
-
YYZ
Nonstop7h 40m
WestJet
Deal found 9/6C$ 665
Wed 29/710:15 p.m.
YYZ
-
EDI
Nonstop6h 55m
WestJet
Wed 12/811:30 a.m.
EDI
-
YYZ
Nonstop7h 40m
WestJet
Deal found 11/6C$ 667
Sun 26/710:15 p.m.
YYZ
-
EDI
Nonstop6h 55m
Multiple Airlines
Tue 11/88:15 p.m.
EDI
-
YYZ
2 stops30h 30m
Multiple Airlines
Deal found 12/6C$ 668
Wed 22/710:15 p.m.
YYZ
-
EDI
Nonstop6h 55m
Multiple Airlines
Tue 11/88:15 p.m.
EDI
-
YYZ
2 stops30h 30m
Multiple Airlines
Deal found 12/6C$ 670
Mon 3/87:35 a.m.
YYZ
-
EDI
1 stop19h 30m
WestJet
Fri 4/911:30 a.m.
EDI
-
YYZ
Nonstop7h 40m
WestJet
Deal found 9/6C$ 671
Thu 20/811:00 a.m.
YYZ
-
EDI
1 stop16h 05m
WestJet
Sun 23/89:25 a.m.
EDI
-
YYZ
1 stop29h 35m
WestJet
Deal found 12/6C$ 672
Mon 20/710:15 p.m.
YYZ
-
EDI
Nonstop6h 55m
WestJet
Tue 28/711:30 a.m.
EDI
-
YYZ
Nonstop7h 40m
WestJet
Deal found 11/6C$ 675

Find flight deals from Ontario to United Kingdom

Keep the following information in mind while searching for Ontario to United Kingdom flight deals. Data was last updated 13 June 2026.

Round-trip from

C$ 658

One-way from

C$ 254

Popular in

July

Cheapest in

February

Average price

C$ 1,002

Good round-trip deal

C$ 566 or less

Good one-way deal

C$ 208 or less
19/7-24/7
  • 19/7-24/7
  • 4 total stops
  • 58h 05m total
  • Ontario to United Kingdom
Search Deals
WestJet
  • WestJet
  • 23/8
  • Nonstop
  • 6h 55m total
  • Ontario to United Kingdom
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 228 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Ontario to United Kingdom.
Search Deals
Price to beat on a one-way flight from Ontario to United Kingdom.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 13 June 2026.
Use the filters below to find and compare flights from Ontario to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

10:10 p.m.-10:00 a.m.

Nonstop6h 50m

London Heathrow

Sun 13/9

12:40 p.m.-6:18 p.m.

1 stop10h 38m

C$ 801

TorontoLondon

YYZ - LTN

YYZLTN

Toronto Pearson Intl

Wed 22/7

7:15 p.m.-10:35 a.m.

1 stop10h 20m

London Luton

Sun 2/8

6:05 p.m.-11:00 a.m.

1 stop21h 55m

C$ 809

TorontoLondon

YTZ - LGW

YTZLGW

Toronto Island

Tue 22/9

4:55 p.m.-7:55 a.m.

1 stop10h 00m

London Gatwick

Fri 16/10

9:40 a.m.-4:33 p.m.

1 stop11h 53m

C$ 811

TorontoLondon

YYZ - LTN

YYZLTN

Toronto Pearson Intl

Wed 22/7

7:15 p.m.-10:35 a.m.

1 stop10h 20m

London Luton

Wed 5/8

7:50 p.m.-11:00 a.m.

1 stop20h 10m

C$ 811

TorontoLondon

YTZ - LGW

YTZLGW

Toronto Island

Wed 16/9

8:55 p.m.-9:50 a.m.

1 stop31h 55m

London Gatwick

Tue 22/9

9:40 a.m.-4:33 p.m.

1 stop11h 53m

C$ 815

TorontoLondon

YTZ - LGW

YTZLGW

Toronto Island

Tue 8/9

8:55 p.m.-9:50 a.m.

1 stop31h 55m

London Gatwick

Sun 20/9

11:35 a.m.-8:15 p.m.

1 stop13h 40m

C$ 819

TorontoLondon

YYZ - LTN

YYZLTN

Toronto Pearson Intl

Sat 22/8

10:15 p.m.-10:30 p.m.

1 stop19h 15m

London Luton

Sun 6/9

9:00 a.m.-3:50 p.m.

1 stop11h 50m

C$ 826

TorontoLondon

YYZ - LTN

YYZLTN

Toronto Pearson Intl

Sat 29/8

7:15 p.m.-10:20 a.m.

1 stop10h 05m

London Luton

Sun 13/9

1:55 p.m.-11:00 a.m.

1 stop26h 05m

C$ 828

TorontoLondon

YTZ - LGW

YTZLGW

Toronto Island

Tue 15/9

4:55 p.m.-7:55 a.m.

1 stop10h 00m

London Gatwick

Tue 22/9

9:40 a.m.-4:33 p.m.

1 stop11h 53m

C$ 830

TorontoLondon

YTZ - LGW

YTZLGW

Toronto Island

Tue 28/7

4:55 p.m.-9:50 a.m.

1 stop11h 55m

London Gatwick

Tue 4/8

11:35 a.m.-10:20 p.m.

1 stop15h 45m

C$ 843

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Ontario to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Region of Ontario to United Kingdom?

Currently, January is the cheapest month in which you can book a flight from Region of Ontario to United Kingdom (average of C$ 857). Flying from Region of Ontario to United Kingdom in December is currently the most expensive (average of C$ 1,328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ON to GB?

Find hourly flight availability from Ontario to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2026.

When flying from Region of Ontario to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Region of Ontario to United Kingdom

Explore weekly flight availability from Ontario to United Kingdom. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 13 June 2026.

The most flights from CAON to GB0 are scheduled on a Friday (46 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (29 on average).

How far ahead should I book a flight from Region of Ontario to United Kingdom?

The best time to book flights from Region of Ontario to United Kingdom is 81 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

Find useful and relevant information for your journey from Ontario to United Kingdom. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Region of Ontario to United Kingdom?

    There are many flights that can get you from Region of Ontario to United Kingdom in 6h 50m. Fly via Lufthansa, Air Transat, or Porter Airlines to get the fastest option. The distance between Region of Ontario and United Kingdom is about 5213 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Region of Ontario to United Kingdom one-way?

    One-way options have recently been found by users for as low as C$ 62 on WestJet. Other airlines that offer cheap prices include TAP AIR PORTUGAL from C$ 306 and Air Transat from C$ 320 one-way.

  • Can I find deals for flights from Ontario to United Kingdom that include hotel bookings?

    Yes. In addition to deals on Ontario to United Kingdom flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to United Kingdom?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to United Kingdom.

  • Can I find deals for business class flights from Ontario to United Kingdom?

    Yes. Cheapflights offers flight deals from Ontario to United Kingdom by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Region of Ontario to United Kingdom?

    Currently, January is the cheapest month in which you can book a flight from Region of Ontario to United Kingdom (average of C$ 857). Flying from Region of Ontario to United Kingdom in December is currently the most expensive (average of C$ 1,328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Charles de Gaulle flights
Pearson Intl to Heathrow flights
Pearson Intl to Istanbul flights
Vancouver Intl to Heathrow flights
Pearson Intl to Gatwick flights
Pearson Intl to Leonardo da Vinci/Fiumicino flights
Pierre Elliott Trudeau Intl to Orly flights
Pierre Elliott Trudeau Intl to Leonardo da Vinci/Fiumicino flights
Pearson Intl to Charles de Gaulle flights
Pearson Intl to Lisbon flights
Pierre Elliott Trudeau Intl to Lisbon flights
Pearson Intl to Athens flights
Vancouver Intl to Gatwick flights
Pierre Elliott Trudeau Intl to Athens flights
Pearson Intl to Stansted flights
Pearson Intl to Dublin flights
Pierre Elliott Trudeau Intl to Istanbul flights
Pierre Elliott Trudeau Intl to Heathrow flights
Pearson Intl to London City flights
Toronto Island to Heathrow flights
Pierre Elliott Trudeau Intl to Barcelona-El Prat flights
Vancouver Intl to London City flights
Pearson Intl to Luton flights
Toronto Island to Gatwick flights
Pearson Intl to Barcelona-El Prat flights
Vancouver Intl to Stansted flights
Vancouver Intl to Charles de Gaulle flights
Vancouver Intl to Frankfurt flights
Québec City to Charles de Gaulle flights
Pearson Intl to Sabiha Gokcen flights
Pierre Elliott Trudeau Intl to Beauvais-Tille flights
Pearson Intl to Frankfurt flights
Pierre Elliott Trudeau Intl to Nice flights
Vancouver Intl to Istanbul flights
Pearson Intl to Orly flights
Pearson Intl to Frederic Chopin flights
Pierre Elliott Trudeau Intl to Gatwick flights
Toronto Island to Lisbon flights
Pearson Intl to Amsterdam flights
Vancouver Intl to Amsterdam flights
Pearson Intl to Edinburgh flights
Calgary to Heathrow flights
Pierre Elliott Trudeau Intl to Malpensa flights
Toronto Island to Istanbul flights
Pearson Intl to Madrid flights
Pearson Intl to Ponta Delgada flights
Abbotsford to Heathrow flights
Toronto Island to Charles de Gaulle flights
Toronto Island to Leonardo da Vinci/Fiumicino flights
Pierre Elliott Trudeau Intl to Vicenza flights

Top 10 airlines flying from Ontario to United Kingdom

Discover the top 10 airlines that operate flights from Ontario to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 13 June 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 114AverageC$ 826FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 537AverageC$ 1,134FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 599AverageC$ 1,168FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
TAP AIR PORTUGALCheapestC$ 607AverageC$ 852FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapestC$ 643AverageC$ 861FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air TransatCheapestC$ 655AverageC$ 1,123FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
British AirwaysCheapestC$ 735AverageC$ 1,152FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapestC$ 750AverageC$ 1,334FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapestC$ 761AverageC$ 1,096FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapestC$ 764AverageC$ 1,244FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to United Kingdom?

Deals for Ontario to United Kingdom flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ontario to United Kingdom?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to United Kingdom from Ontario.

Can Cheapflights find flights from Ontario to United Kingdom with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to United Kingdom, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ontario to United Kingdom become cheaper?

Yes, Cheapflights offers price alerts on Ontario to United Kingdom flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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