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Cheap flights from Ontario to the United Kingdom from C$ 248

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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LHR
28 Aug — 4 Sep1
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 29 July 2026.

Sun 22/1110:20 p.m.
YYZ
-
EDI
1 stop9h 55m
British Airways
Thu 3/128:35 a.m.
EDI
-
YYZ
1 stop12h 15m
British Airways
Deal found 28/7C$ 633
Thu 17/94:15 p.m.
YYZ
-
EDI
1 stop10h 50m
Multiple Airlines
Tue 22/91:50 p.m.
EDI
-
YYZ
3 stops32h 25m
Multiple Airlines
Deal found 24/7C$ 638
Thu 1/109:35 p.m.
YYZ
-
EDI
1 stop12h 30m
Multiple Airlines
Tue 13/106:15 a.m.
EDI
-
YYZ
2 stops15h 55m
Multiple Airlines
Deal found 27/7C$ 639
Thu 1/109:35 p.m.
YYZ
-
EDI
1 stop16h 55m
Multiple Airlines
Fri 16/107:35 a.m.
EDI
-
YYZ
1 stop10h 45m
Multiple Airlines
Deal found 27/7C$ 645
Mon 10/86:15 p.m.
YYZ
-
EDI
1 stop8h 50m
Multiple Airlines
Tue 18/810:00 p.m.
EDI
-
YYZ
2 stops24h 15m
Multiple Airlines
Deal found 28/7C$ 649
Thu 1/109:35 p.m.
YYZ
-
EDI
1 stop16h 55m
Multiple Airlines
Fri 23/107:35 a.m.
EDI
-
YYZ
1 stop10h 45m
Multiple Airlines
Deal found 26/7C$ 653
Wed 14/106:20 p.m.
YYZ
-
EDI
2 stops20h 30m
Multiple Airlines
Mon 19/109:25 p.m.
EDI
-
YYZ
2 stops24h 45m
Multiple Airlines
Deal found 27/7C$ 655
Sat 3/109:35 p.m.
YYZ
-
EDI
1 stop10h 30m
Multiple Airlines
Fri 16/107:35 a.m.
EDI
-
YYZ
1 stop10h 45m
Multiple Airlines
Deal found 27/7C$ 656
Sat 10/109:35 p.m.
YYZ
-
EDI
1 stop14h 05m
Multiple Airlines
Fri 16/107:35 a.m.
EDI
-
YYZ
1 stop10h 45m
Multiple Airlines
Deal found 27/7C$ 660
Wed 30/910:15 p.m.
YYZ
-
EDI
Nonstop6h 55m
WestJet
Thu 22/1011:30 a.m.
EDI
-
YYZ
Nonstop7h 40m
WestJet
Deal found 28/7C$ 666
Thu 8/104:15 p.m.
YUL
-
LGW
1 stop10h 40m
Porter Airlines
Wed 14/1012:40 p.m.
LGW
-
YUL
1 stop11h 52m
Porter Airlines
Deal found 24/7C$ 731
Wed 9/98:35 p.m.
YUL
-
LGW
1 stop30h 20m
Air Transat
Wed 16/911:35 a.m.
LGW
-
YUL
Nonstop7h 40m
Air Transat
Deal found 26/7C$ 732

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 29 July 2026.

Round-trip from

C$ 633

One-way from

C$ 248

Popular in

December

Cheapest in

February

Average price

C$ 1,160

Good round-trip deal

C$ 589 or less

Good one-way deal

C$ 242 or less
British Airways
  • British Airways
  • 22/11-3/12
  • 2 total stops
  • 22h 10m total
  • Ontario to United Kingdom
Search Deals
WestJet
  • WestJet
  • 17/9
  • 1 total stop
  • 10h 50m total
  • Ontario to United Kingdom
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 29 July 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

TorontoLondon

YTZ - LGW

YTZLGW

Toronto Island

Wed 9/9

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

1 stop11h 55m

London Gatwick

Wed 23/9

11:35 a.m.-10:21 a.m.

1 stop27h 46m

C$ 768

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 11/9

8:35 p.m.-7:55 a.m.

1 stop30h 20m

London Gatwick

Mon 14/9

11:35 a.m.-2:15 p.m.

Nonstop7h 40m

C$ 770

TorontoLondon

YTZ - LGW

YTZLGW

Toronto Island

Mon 7/9

8:45 p.m.-7:55 a.m.

1 stop30h 10m

London Gatwick

Fri 18/9

9:40 a.m.-4:30 p.m.

1 stop11h 50m

C$ 776

TorontoLondon

YTZ - LGW

YTZLGW

Toronto Island

Tue 29/9

10:00 a.m.-9:50 a.m.

1 stop18h 50m

London Gatwick

Wed 7/10

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

1 stop13h 36m

C$ 784

TorontoLondon

YTZ - LGW

YTZLGW

Toronto Island

Tue 15/9

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

1 stop11h 55m

London Gatwick

Wed 7/10

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

1 stop13h 36m

C$ 786

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Thu 15/10

10:05 p.m.-9:50 a.m.

Nonstop6h 45m

London Gatwick

Thu 29/10

11:40 a.m.-7:15 p.m.

1 stop11h 35m

C$ 793

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Mon 28/9

11:15 p.m.-9:50 a.m.

1 stop29h 35m

London Gatwick

Wed 7/10

12:40 p.m.-3:40 p.m.

Nonstop8h 00m

C$ 793

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Wed 7/10

9:30 p.m.-11:40 p.m.

1 stop21h 10m

London Gatwick

Mon 19/10

5:10 p.m.-2:40 p.m.

1 stop26h 30m

C$ 804

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Mon 21/9

11:15 p.m.-9:50 a.m.

1 stop29h 35m

London Gatwick

Wed 23/9

12:40 p.m.-3:40 p.m.

Nonstop8h 00m

C$ 813

TorontoLondon

YYZ - STN

YYZSTN

Toronto Pearson Intl

Thu 10/9

11:45 p.m.-7:20 p.m.

1 stop14h 35m

London Stansted

Wed 16/9

8:10 p.m.-5:10 p.m.

1 stop26h 00m

C$ 862

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/7

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, February is the cheapest month in which you can book a flight from Region of Ontario to United Kingdom (average of C$ 848). Flying from Region of Ontario to United Kingdom in December is currently the most expensive (average of C$ 1,280). 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 29 July 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 29 July 2026.

The most flights from CAON to GB0 are scheduled on a Monday (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 44 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 7h 20m. Fly via Porter Airlines, Air Transat, or Lufthansa to get the fastest option. The distance between Region of Ontario and United Kingdom is about 5702 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$ 199 on WestJet. Other airlines that offer cheap prices include Virgin Atlantic from C$ 292 and TAP AIR PORTUGAL from C$ 309 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, February is the cheapest month in which you can book a flight from Region of Ontario to United Kingdom (average of C$ 848). Flying from Region of Ontario to United Kingdom in December is currently the most expensive (average of C$ 1,280). 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
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Pearson Intl to Leonardo da Vinci/Fiumicino flights
Pearson Intl to Charles de Gaulle flights
Pearson Intl to Lisbon flights
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Pierre Elliott Trudeau Intl to Orly flights
Vancouver Intl to Gatwick flights
Pearson Intl to London City flights
Vancouver Intl to Charles de Gaulle flights
Pearson Intl to Stansted flights
Pearson Intl to Athens flights
Pierre Elliott Trudeau Intl to Lisbon flights
Toronto Island to Heathrow flights
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Vancouver Intl to Frankfurt flights
Pierre Elliott Trudeau Intl to Leonardo da Vinci/Fiumicino flights
Pierre Elliott Trudeau Intl to Heathrow flights
Pearson Intl to Madrid flights
Pierre Elliott Trudeau Intl to Istanbul flights
Pierre Elliott Trudeau Intl to Beauvais-Tille flights
Pearson Intl to Amsterdam flights
Pearson Intl to Frankfurt flights
Vancouver Intl to Stansted flights
Pearson Intl to Luton flights
Pierre Elliott Trudeau Intl to Barcelona-El Prat flights
Pearson Intl to Barcelona-El Prat flights
Toronto Island to Gatwick flights
Pearson Intl to Orly flights
Vancouver Intl to London City flights
Toronto Island to Leonardo da Vinci/Fiumicino flights
Vancouver Intl to Istanbul flights
Vancouver Intl to Leonardo da Vinci/Fiumicino flights
Vancouver Intl to Dublin flights
Toronto Island to Charles de Gaulle flights
Calgary to Heathrow flights
Pearson Intl to Sabiha Gokcen flights
Toronto Island to Lisbon flights
Vancouver Intl to Orly flights
Pearson Intl to Edinburgh flights
Québec City to Charles de Gaulle flights
Pearson Intl to Frederic Chopin flights
Toronto Island to Istanbul flights
Abbotsford to Heathrow flights
Pearson Intl to Zurich flights
Pierre Elliott Trudeau Intl to Málaga flights
Pierre Elliott Trudeau Intl to Amsterdam 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 29 July 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 121AverageC$ 980FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 577AverageC$ 1,058FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 602AverageC$ 1,164FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapestC$ 607AverageC$ 1,061FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
TAP AIR PORTUGALCheapestC$ 613AverageC$ 860FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapestC$ 649AverageC$ 875FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air TransatCheapestC$ 651AverageC$ 1,173FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
IberiaCheapestC$ 717AverageC$ 1,000FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapestC$ 737AverageC$ 1,164FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapestC$ 747AverageC$ 1,073FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus 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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