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Cheap flights from the United Kingdom to Ontario from C$ 421

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 26/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYZ
15 Jul — 22 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Ontario
Explore the most affordable flight options available from United Kingdom to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 June 2026.

Tue 30/69:40 a.m.
LGW
-
YTZ
1 stop11h 53m
Air Transat
Thu 16/76:55 p.m.
YTZ
-
LGW
1 stop9h 55m
Air Transat
Deal found 10/6C$ 789
Fri 26/69:25 p.m.
LHR
-
YYZ
1 stop26h 45m
Icelandair
Tue 20/108:45 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Deal found 13/6C$ 789
Thu 25/69:40 p.m.
LTN
-
YYZ
1 stop20h 40m
Multiple Airlines
Fri 3/711:55 p.m.
YYZ
-
LTN
1 stop19h 35m
Multiple Airlines
Deal found 12/6C$ 789
Fri 26/61:05 p.m.
STN
-
YYZ
2 stops29h 55m
Multiple Airlines
Fri 10/77:15 p.m.
YYZ
-
STN
1 stop22h 40m
Multiple Airlines
Deal found 10/6C$ 789
Tue 23/612:40 p.m.
LGW
-
YYZ
Nonstop8h 00m
Air Transat
Sat 11/711:15 p.m.
YYZ
-
LGW
1 stop29h 35m
Air Transat
Deal found 10/6C$ 789
Fri 3/79:40 a.m.
LGW
-
YTZ
1 stop17h 13m
Air Transat
Sat 11/710:55 a.m.
YTZ
-
LGW
1 stop17h 55m
Air Transat
Deal found 11/6C$ 790
Fri 28/86:00 a.m.
LHR
-
YYZ
1 stop11h 50m
Air Canada
Fri 11/97:00 a.m.
YYZ
-
LHR
1 stop18h 30m
Air Canada
Deal found 15/6C$ 790
Tue 18/87:50 p.m.
LTN
-
YYZ
1 stop22h 30m
Multiple Airlines
Fri 28/811:05 p.m.
YYZ
-
LTN
1 stop9h 55m
Multiple Airlines
Deal found 12/6C$ 790
Thu 16/76:05 a.m.
STN
-
YYZ
1 stop12h 35m
Multiple Airlines
Tue 28/79:55 p.m.
YYZ
-
STN
1 stop10h 20m
Multiple Airlines
Deal found 10/6C$ 790
Wed 1/710:00 p.m.
LGW
-
YYZ
2 stops22h 00m
Multiple Airlines
Sun 19/76:15 p.m.
YYZ
-
LGW
2 stops12h 45m
Multiple Airlines
Deal found 10/6C$ 790
Thu 25/62:05 p.m.
LHR
-
YTZ
1 stop22h 46m
Air Canada
Fri 3/710:50 a.m.
YTZ
-
LHR
1 stop14h 40m
Air Canada
Deal found 11/6C$ 790
Fri 3/79:40 a.m.
LGW
-
YTZ
1 stop17h 13m
Air Transat
Sun 12/74:55 p.m.
YTZ
-
LGW
1 stop10h 00m
Air Transat
Deal found 12/6C$ 792

Find flight deals from United Kingdom to Ontario

Keep the following information in mind while searching for United Kingdom to Ontario flight deals. Data was last updated 15 June 2026.

Round-trip from

C$ 789

One-way from

C$ 421

Popular in

August

Cheapest in

February

Average price

C$ 867

Good round-trip deal

C$ 607 or less

Good one-way deal

C$ 384 or less
Icelandair
  • Icelandair
  • 26/6-20/10
  • 2 total stops
  • 36h 55m total
  • United Kingdom to Ontario
Search Deals
26/6
  • 26/6
  • 2 total stops
  • 23h 10m total
  • United Kingdom to Ontario
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 105 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 26 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 United Kingdom to Ontario.
Search Deals
Price to beat on a one-way flight from United Kingdom to Ontario.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from United Kingdom to Ontario 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 15 June 2026.
Use the filters below to find and compare flights from the United Kingdom to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonToronto

LGW - YTZ

LGWYTZ

London Gatwick

Fri 10/7

9:40 a.m.-6:58 p.m.

1 stop14h 18m

Toronto Island

Mon 20/7

6:55 p.m.-9:50 a.m.

1 stop9h 55m

C$ 810

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Tue 25/8

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

Nonstop8h 00m

Toronto Pearson Intl

Sun 6/9

10:45 p.m.-10:45 a.m.

Nonstop7h 00m

C$ 815

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Wed 1/7

9:40 a.m.-12:45 p.m.

Nonstop8h 05m

Toronto Pearson Intl

Tue 21/7

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

1 stop29h 35m

C$ 825

LondonToronto

LGW - YTZ

LGWYTZ

London Gatwick

Tue 7/7

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

1 stop11h 53m

Toronto Island

Mon 20/7

6:55 p.m.-9:50 a.m.

1 stop9h 55m

C$ 826

LondonToronto

LTN - YYZ

LTNYYZ

London Luton

Tue 29/9

9:40 a.m.-5:10 p.m.

1 stop12h 30m

Toronto Pearson Intl

Wed 14/10

11:45 p.m.-7:30 p.m.

1 stop14h 45m

C$ 835

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 4/9

8:30 a.m.-11:15 a.m.

Nonstop7h 45m

Toronto Pearson Intl

Mon 14/9

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

Nonstop7h 00m

C$ 838

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Tue 13/10

12:10 p.m.-2:00 p.m.

2 stops30h 50m

Toronto Pearson Intl

Mon 19/10

5:45 p.m.-3:35 p.m.

1 stop16h 50m

C$ 857

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 10/7

7:30 a.m.-10:23 p.m.

2 stops19h 53m

Toronto Pearson Intl

Fri 24/7

12:05 p.m.-6:55 a.m.

2 stops13h 50m

C$ 866

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 15/10

7:30 a.m.-7:00 p.m.

2 stops16h 30m

Toronto Pearson Intl

Wed 18/11

4:35 p.m.-10:50 a.m.

2 stops13h 15m

C$ 866

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 27/8

6:50 a.m.-10:06 p.m.

2 stops20h 16m

Montreal Pierre Elliott Trudeau Intl

Tue 1/9

1:10 p.m.-9:20 a.m.

1 stop15h 10m

C$ 866

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/6

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

Have a flexible travel schedule? Discover the best time to fly to Ontario from United Kingdom 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 the United Kingdom to Ontario

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

Currently, February is the cheapest month in which you can book a flight from United Kingdom to Region of Ontario (average of C$ 800). Flying from United Kingdom to Region of Ontario in August is currently the most expensive (average of C$ 1,141). 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 GB to ON?

Find hourly flight availability from United Kingdom to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 June 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Region of Ontario as you normally would.

Weekly flight availability from United Kingdom to Region of Ontario

Explore weekly flight availability from United Kingdom to Ontario. 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 15 June 2026.

The most flights from GB0 to CAON are scheduled on a Tuesday (39 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (21 on average).

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

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from United Kingdom to Region of Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 15 June 2026.
Read reviews from past customers who have flown Air Transat,Virgin Atlantic, andAir Canada from the United Kingdom to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.8
Good
555 reviews
Check prices

Boarding

7.9

Comfort

7.3

Entertainment

7.1

Food

6.8

Overall

7.8

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Transat
7.8
Good
555 reviews
Air Transat
7.8
Good
555 reviews
Check prices

Boarding

7.9

Comfort

7.3

Entertainment

7.1

Food

6.8

Overall

7.8

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Virgin Atlantic
7.5
Good
690 reviews
Air Transat
7.8
Good
555 reviews
Check prices

Boarding

7.9

Comfort

7.3

Entertainment

7.1

Food

6.8

Overall

7.8

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Canada
7.1
Good
11,194 reviews
Air Transat
7.8
Good
555 reviews
Check prices

Boarding

7.9

Comfort

7.3

Entertainment

7.1

Food

6.8

Overall

7.8

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Lufthansa
6.8
Okay
8,061 reviews
Air Transat
7.8
Good
555 reviews
Check prices

Boarding

7.9

Comfort

7.3

Entertainment

7.1

Food

6.8

Overall

7.8

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
British Airways
6.7
Okay
8,050 reviews
Air Transat
7.8
Good
555 reviews
Check prices

Boarding

7.9

Comfort

7.3

Entertainment

7.1

Food

6.8

Overall

7.8

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Ontario. 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 United Kingdom to Region of Ontario?

    Departing from United Kingdom to Region of Ontario will take you 7h 45m. The distance from United Kingdom to Region of Ontario is about 5702 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    One-way options have recently been found by users for as low as C$ 293 on Aer Lingus. Other airlines that offer cheap prices include WestJet from C$ 325 and KLM from C$ 330 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from United Kingdom to Ontario 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 United Kingdom to Region of Ontario?

    Currently, February is the cheapest month in which you can book a flight from United Kingdom to Region of Ontario (average of C$ 800). Flying from United Kingdom to Region of Ontario in August is currently the most expensive (average of C$ 1,141). 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

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Alternative routes for United Kingdom to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from United Kingdom to Ontario

Discover the top 10 airlines that operate flights from United Kingdom to Ontario. 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 15 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 524AverageC$ 1,181FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapestC$ 568AverageC$ 1,098FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air TransatCheapestC$ 593AverageC$ 1,051FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Virgin AtlanticCheapestC$ 618AverageC$ 1,059FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapestC$ 620AverageC$ 733FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapestC$ 634AverageC$ 881FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapestC$ 653AverageC$ 1,028FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapestC$ 665AverageC$ 1,100FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 666AverageC$ 1,043FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 705AverageC$ 1,101FlexibilityNo cancel feeOn-time60%
Search WestJet 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 United Kingdom to Ontario?

When you search for this flight from United Kingdom to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from United Kingdom to Ontario by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes, we can. To see specific flights from United Kingdom to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for United Kingdom to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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