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Cheap flights from the United Kingdom to Ontario from £218

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
10 Jul — 17 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 10 June 2026.

Mon 15/611:35
LGW
-
YTZ
1 stop10h 50m
Air Transat
Sun 5/718:55
YTZ
-
LGW
1 stop9h 55m
Air Transat
Deal found 8/6£422
Wed 1/706:15
LTN
-
YYZ
2 stops13h 45m
Multiple Airlines
Mon 20/722:55
YYZ
-
LTN
1 stop11h 50m
Multiple Airlines
Deal found 9/6£422
Tue 8/1209:30
LHR
-
YYZ
1 stop15h 15m
Multiple Airlines
Tue 29/1206:15
YYZ
-
LHR
1 stop9h 20m
Multiple Airlines
Deal found 9/6£422
Tue 14/708:10
STN
-
YYZ
1 stop11h 00m
Multiple Airlines
Tue 21/721:55
YYZ
-
STN
1 stop10h 20m
Multiple Airlines
Deal found 10/6£422
Mon 29/611:35
LGW
-
YYZ
1 stop12h 03m
Air Transat
Fri 10/723:15
YYZ
-
LGW
1 stop29h 35m
Air Transat
Deal found 9/6£422
Tue 3/1106:50
LHR
-
YTZ
2 stops13h 05m
Air Canada
Sat 14/1108:20
YTZ
-
LHR
2 stops17h 50m
Air Canada
Deal found 10/6£422
Fri 26/609:40
LGW
-
YTZ
1 stop29h 58m
Air Transat
Wed 15/716:55
YTZ
-
LGW
1 stop11h 55m
Air Transat
Deal found 8/6£422
Thu 25/612:40
LTN
-
YYZ
2 stops29h 40m
Multiple Airlines
Tue 25/822:15
YYZ
-
LTN
1 stop19h 10m
Multiple Airlines
Deal found 9/6£422
Wed 9/909:30
LHR
-
YYZ
1 stop11h 50m
Lufthansa
Tue 15/918:35
YYZ
-
LHR
Nonstop7h 00m
Lufthansa
Deal found 9/6£422
Thu 16/706:05
STN
-
YYZ
1 stop12h 35m
Multiple Airlines
Tue 28/721:55
YYZ
-
STN
1 stop10h 20m
Multiple Airlines
Deal found 10/6£422
Wed 8/709:40
LGW
-
YYZ
Nonstop8h 05m
Air Transat
Wed 21/1022:45
YYZ
-
LGW
Nonstop7h 00m
Air Transat
Deal found 10/6£422
Mon 15/611:35
LGW
-
YTZ
1 stop10h 50m
Air Transat
Tue 23/611:55
YTZ
-
LGW
1 stop15h 00m
Air Transat
Deal found 8/6£423

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 10 June 2026.

Round-trip from

£422

One-way from

£218

Popular in

August

Cheapest in

February

Average price

£464

Good round-trip deal

£357 or less

Good one-way deal

£178 or less
Lufthansa
  • Lufthansa
  • 12/9-25/9
  • 2 total stops
  • 27h 05m 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 (£31 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return 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

 
Customise 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 858,174 searches. Data last updated 10 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 return flight

LondonToronto

LTN - YYZ

LTNYYZ

London Luton

Wed 15/7

19:50-13:20

2 stops46h 30m

Toronto Pearson Intl

Tue 11/8

21:35-13:25

1 stop10h 50m

£424

LondonToronto

LGW - YTZ

LGWYTZ

London Gatwick

Sun 30/8

09:40-16:33

1 stop11h 53m

Toronto Island

Wed 9/9

18:55-09:50

1 stop9h 55m

£428

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Wed 16/9

09:50-15:50

1 stop11h 00m

Toronto Pearson Intl

Thu 24/9

22:00-10:15

Nonstop7h 15m

£439

LondonToronto

LGW - YTZ

LGWYTZ

London Gatwick

Fri 10/7

09:40-18:58

1 stop14h 18m

Toronto Island

Tue 14/7

16:55-07:55

1 stop10h 00m

£440

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Wed 1/7

08:30-11:15

Nonstop7h 45m

Toronto Pearson Intl

Tue 21/7

18:35-06:35

Nonstop7h 00m

£446

LondonToronto

LTN - YYZ

LTNYYZ

London Luton

Thu 8/10

06:00-17:10

1 stop16h 10m

Toronto Pearson Intl

Wed 14/10

23:45-21:50

1 stop17h 05m

£446

LondonToronto

STN - YYZ

STNYYZ

London Stansted

Sun 20/9

19:55-17:10

1 stop26h 15m

Toronto Pearson Intl

Sun 27/9

23:45-19:20

1 stop14h 35m

£452

LondonToronto

LTN - YYZ

LTNYYZ

London Luton

Sun 20/9

07:50-17:10

1 stop14h 20m

Toronto Pearson Intl

Sun 27/9

23:45-21:45

1 stop17h 00m

£453

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Sat 4/7

06:50-20:11

2 stops18h 21m

Toronto Island

Sat 11/7

15:15-10:40

1 stop14h 25m

£455

LondonToronto

LGW - YTZ

LGWYTZ

London Gatwick

Sun 5/7

09:40-16:33

1 stop11h 53m

Toronto Island

Sun 19/7

16:55-07:55

1 stop10h 00m

£460

Flights are sorted by cheapest return flights first.

Deals found on 5/6

Showing 1-10 of 60 resultsSorted by cheapest first
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2
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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 return 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 £428). Flying from United Kingdom to Region of Ontario in December is currently the most expensive (average of £609). 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 10 June 2026.

When flying from United Kingdom to Region of Ontario, 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 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 10 June 2026.

The most flights from GB0 to CAON are scheduled on a Tuesday (39 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (23 on average).

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

Booking 80 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 10 June 2026.
Read reviews from past customers who have flown with 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

Comfort

7.3

Boarding

7.9

Entertainment

7.1

Food

6.8

Crew

8.5

Overall

7.8

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

Comfort

7.3

Boarding

7.9

Entertainment

7.1

Food

6.8

Crew

8.5

Overall

7.8

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
689 reviews
Air Transat
7.8
Good
555 reviews
Check prices

Comfort

7.3

Boarding

7.9

Entertainment

7.1

Food

6.8

Crew

8.5

Overall

7.8

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
11,154 reviews
Air Transat
7.8
Good
555 reviews
Check prices

Comfort

7.3

Boarding

7.9

Entertainment

7.1

Food

6.8

Crew

8.5

Overall

7.8

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
8,052 reviews
Air Transat
7.8
Good
555 reviews
Check prices

Comfort

7.3

Boarding

7.9

Entertainment

7.1

Food

6.8

Crew

8.5

Overall

7.8

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
8,035 reviews
Air Transat
7.8
Good
555 reviews
Check prices

Comfort

7.3

Boarding

7.9

Entertainment

7.1

Food

6.8

Crew

8.5

Overall

7.8

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?

    There are many flights that can get you from United Kingdom to Region of Ontario in 7h 45m. Fly via Air Transat, British Airways, or Lufthansa to get the fastest option. United Kingdom and Region of Ontario are separated by a distance of 3543 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as £152. Users have also found prices from £182 and £200 on KLM and Air Transat, respectively.

  • 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 holiday 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 £428). Flying from United Kingdom to Region of Ontario in December is currently the most expensive (average of £609). 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.
Heathrow to Pearson Intl flights
Heathrow to Vancouver Intl flights
Gatwick to Pearson Intl flights
Gatwick to Vancouver Intl flights
Heathrow to Toronto Island flights
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Gatwick to Toronto Island flights
Heathrow to Calgary flights
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Gatwick to Pierre Elliott Trudeau Intl flights
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Southend to Pearson Intl flights
London City to Calgary flights
Gatwick to Calgary flights
Heathrow to Ottawa flights
London City to Pierre Elliott Trudeau Intl flights
Manchester to Vancouver Intl flights
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Luton to Vancouver Intl flights
Stansted to Pierre Elliott Trudeau Intl flights
Stansted to Calgary flights
Manchester to Toronto Island flights
Luton to Calgary flights
Gatwick to Ottawa flights
Luton to Pierre Elliott Trudeau Intl flights
Edinburgh to Vancouver Intl flights
Edinburgh to Toronto Island flights
Glasgow Intl to Pearson Intl flights
London City to Ottawa flights
Cork to Kelowna flights
Birmingham to Vancouver Intl flights
Birmingham to Pearson Intl flights
Cardiff to Pearson Intl flights
Dublin to Pearson Intl flights
Gatwick to Halifax flights
Stansted to Ottawa flights
Heathrow to Winnipeg flights
Heathrow to Edmonton flights
Gatwick to Edmonton flights
Stansted to Halifax flights
Edinburgh to Calgary flights
Heathrow to Victoria flights

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 858,174 searches. Data last updated 10 June 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest£272Average£534FlexibilityNo cancel feeOn-time60%
Search WestJet flights
SWISSCheapest£273Average£348FlexibilityNo cancel feeOn-time79%
Search SWISS flights
IcelandairCheapest£273Average£498FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
KLMCheapest£316Average£635FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£321Average£656FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air TransatCheapest£322Average£557FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
DeltaCheapest£325Average£617FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
TAP AIR PORTUGALCheapest£329Average£580FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Aer LingusCheapest£330Average£623FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Virgin AtlanticCheapest£335Average£577FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers 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?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from United Kingdom to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights helps you find that perfect flight to Ontario from United Kingdom by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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, Cheapflights offers price alerts on United Kingdom to Ontario 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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