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Cheap flights from the United Kingdom to Ontario from C$ 340

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYZ
16 Apr — 23 Apr1
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 17 March 2026.

Tue 21/43:40 p.m.
LGW
-
YYZ
1 stop32h 30m
Icelandair
Wed 20/58:45 p.m.
YYZ
-
LGW
1 stop10h 00m
Icelandair
Deal found 15/3C$ 631
Sun 12/43:40 p.m.
LGW
-
YYZ
1 stop32h 30m
Icelandair
Sun 19/48:45 p.m.
YYZ
-
LGW
1 stop12h 55m
Icelandair
Deal found 15/3C$ 633
Tue 14/43:40 p.m.
LGW
-
YYZ
1 stop32h 30m
Icelandair
Sun 19/48:45 p.m.
YYZ
-
LGW
1 stop12h 55m
Icelandair
Deal found 14/3C$ 634
Tue 14/43:40 p.m.
LGW
-
YYZ
1 stop32h 30m
Icelandair
Tue 21/48:45 p.m.
YYZ
-
LGW
1 stop12h 55m
Icelandair
Deal found 14/3C$ 635
Thu 30/43:40 p.m.
LGW
-
YYZ
1 stop11h 25m
Icelandair
Thu 7/511:10 p.m.
YYZ
-
LGW
1 stop10h 30m
Icelandair
Deal found 16/3C$ 637
Mon 13/43:40 p.m.
LGW
-
YYZ
1 stop11h 25m
Icelandair
Mon 20/411:10 p.m.
YYZ
-
LGW
1 stop10h 30m
Icelandair
Deal found 15/3C$ 638
Thu 30/41:00 p.m.
LGW
-
YYZ
1 stop14h 05m
Icelandair
Mon 4/511:10 p.m.
YYZ
-
LGW
1 stop10h 30m
Icelandair
Deal found 15/3C$ 639
Sun 26/49:25 p.m.
LHR
-
YYZ
1 stop26h 45m
Icelandair
Thu 7/58:45 p.m.
YYZ
-
LHR
1 stop18h 35m
Icelandair
Deal found 16/3C$ 641
Tue 5/59:25 p.m.
LHR
-
YYZ
1 stop29h 40m
Icelandair
Wed 13/58:45 p.m.
YYZ
-
LHR
1 stop18h 35m
Icelandair
Deal found 16/3C$ 644
Sat 25/43:40 p.m.
LGW
-
YYZ
1 stop11h 25m
Icelandair
Wed 29/48:45 p.m.
YYZ
-
LGW
1 stop10h 00m
Icelandair
Deal found 16/3C$ 644
Mon 21/98:30 a.m.
LHR
-
YYZ
Nonstop7h 45m
Air Canada
Tue 6/109:05 p.m.
YYZ
-
LHR
Nonstop7h 30m
Air Canada
Deal found 16/3C$ 645
Thu 2/73:40 p.m.
LGW
-
YYZ
1 stop11h 25m
Icelandair
Wed 8/711:10 p.m.
YYZ
-
LGW
1 stop10h 30m
Icelandair
Deal found 15/3C$ 645

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 17 March 2026.

Round-trip from

C$ 631

One-way from

C$ 340

Popular in

December

Cheapest in

September

Average price

C$ 804

Good round-trip deal

C$ 726 or less

Good one-way deal

C$ 514 or less
Icelandair
  • Icelandair
  • 21/4-20/5
  • 2 total stops
  • 42h 30m total
  • United Kingdom to Ontario
Search Deals
20/4
  • 20/4
  • 1 total stop
  • 11h 30m total
  • United Kingdom to Ontario
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 17 March 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

LHR - YYZ

LHRYYZ

London Heathrow

Thu 7/5

1:05 p.m.-7:10 p.m.

1 stop11h 05m

Toronto Pearson Intl

Mon 11/5

8:45 p.m.-8:20 p.m.

1 stop18h 35m

C$ 730

LondonToronto

LTN - YYZ

LTNYYZ

London Luton

Wed 3/6

6:10 p.m.-2:40 p.m.

1 stop25h 30m

Toronto Pearson Intl

Wed 10/6

9:30 p.m.-6:40 p.m.

1 stop16h 10m

C$ 802

LondonToronto

LTN - YYZ

LTNYYZ

London Luton

Wed 15/4

6:15 a.m.-11:50 a.m.

1 stop10h 35m

Toronto Pearson Intl

Wed 6/5

8:20 p.m.-9:15 p.m.

2 stops19h 55m

C$ 813

ManchesterToronto

MAN - YYZ

MANYYZ

Manchester

Thu 23/4

7:10 p.m.-3:40 p.m.

1 stop25h 30m

Toronto Pearson Intl

Mon 27/4

5:10 p.m.-6:30 p.m.

1 stop20h 20m

C$ 816

ManchesterToronto

MAN - YYZ

MANYYZ

Manchester

Mon 27/4

7:10 p.m.-3:40 p.m.

1 stop25h 30m

Toronto Pearson Intl

Sun 10/5

5:10 p.m.-8:55 a.m.

1 stop10h 45m

C$ 820

LondonToronto

LGW - YTZ

LGWYTZ

London Gatwick

Wed 13/5

11:35 a.m.-5:25 p.m.

1 stop10h 50m

Toronto Island

Tue 8/9

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

1 stop9h 55m

C$ 832

LondonToronto

LGW - YTZ

LGWYTZ

London Gatwick

Fri 11/9

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

1 stop11h 53m

Toronto Island

Tue 22/9

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

1 stop10h 00m

C$ 838

LondonToronto

LGW - YTZ

LGWYTZ

London Gatwick

Sun 30/8

1:05 p.m.-8:15 p.m.

1 stop12h 10m

Toronto Island

Sun 13/9

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

1 stop9h 55m

C$ 846

LondonToronto

LGW - YTZ

LGWYTZ

London Gatwick

Wed 13/5

11:35 a.m.-5:25 p.m.

1 stop10h 50m

Toronto Island

Wed 20/5

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

1 stop31h 55m

C$ 867

LondonToronto

LTN - YYZ

LTNYYZ

London Luton

Tue 5/5

6:00 a.m.-5:10 p.m.

1 stop16h 10m

Toronto Pearson Intl

Fri 15/5

7:15 p.m.-4:20 p.m.

1 stop16h 05m

C$ 874

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/3

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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, August is the cheapest month in which you can book a flight from United Kingdom to Region of Ontario (average of C$ 108). Flying from United Kingdom to Region of Ontario in December is currently the most expensive (average of C$ 674). 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 17 March 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 17 March 2026.

The most flights from GB0 to CAON are scheduled on a Monday (36 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (18 on average).

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 17 March 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
7.7
Good
521 reviews
Check prices

Food

6.8

Crew

8.5

Boarding

7.9

Overall

7.7

Entertainment

7.0

Comfort

7.3

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
7.7
Good
521 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Food

6.8

Crew

8.5

Boarding

7.9

Overall

7.7

Entertainment

7.0

Comfort

7.3

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
682 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Food

6.8

Crew

8.5

Boarding

7.9

Overall

7.7

Entertainment

7.0

Comfort

7.3

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
10,808 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Food

6.8

Crew

8.5

Boarding

7.9

Overall

7.7

Entertainment

7.0

Comfort

7.3

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
7,857 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Food

6.8

Crew

8.5

Boarding

7.9

Overall

7.7

Entertainment

7.0

Comfort

7.3

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
7,797 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Food

6.8

Crew

8.5

Boarding

7.9

Overall

7.7

Entertainment

7.0

Comfort

7.3

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 10h 50m. The distance from United Kingdom to Region of Ontario is about 5724 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$ 260 on WestJet. Other airlines that offer cheap prices include KLM from C$ 323 and Aer Lingus from C$ 376 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, August is the cheapest month in which you can book a flight from United Kingdom to Region of Ontario (average of C$ 108). Flying from United Kingdom to Region of Ontario in December is currently the most expensive (average of C$ 674). 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 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 17 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 436AverageC$ 1,126FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapestC$ 557AverageC$ 916FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air TransatCheapestC$ 581AverageC$ 937FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Virgin AtlanticCheapestC$ 605AverageC$ 972FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapestC$ 607AverageC$ 826FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapestC$ 621AverageC$ 864FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapestC$ 639AverageC$ 1,017FlexibilityNo cancel feeOn-time70%
Search British Airways flights
DeltaCheapestC$ 652AverageC$ 876FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 653AverageC$ 1,039FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 688AverageC$ 996FlexibilityNo 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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