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Cheap flights from the United Kingdom to Ontario from £262

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 18/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYZ
21 dez — 28 dez1
1 adult
1 adult, Economy, 0 bags

Cheap 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 21 novembro 2025.

Round-trip from

£387

One-way from

£262

Popular in

December

Cheapest in

February

Average price

£418

Good round-trip deal

£453 or less

Good one-way deal

£343 or less
Icelandair
  • Icelandair
  • 3/12-11/2
  • 2 total stops
  • 29h 50m total
  • United Kingdom to Ontario
Search Deals
18/1
  • 18/1
  • 3 total stops
  • 39h 41m total
  • United Kingdom to Ontario
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£20 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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

Find 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 21 novembro 2025.

qua 3/1212:15LHR - YYZ
1 stop11h 00mIcelandair
ter 10/219:40YYZ - LHR
1 stop18h 50mIcelandair
Deal found 19/11£387
qua 19/1109:00LHR - YYZ
1 stop12h 10mMultiple Airlines
qui 27/1123:10YYZ - LHR
1 stop27h 00mMultiple Airlines
Deal found 18/11£388
ter 2/1209:00LHR - YTZ
2 stops13h 55mMultiple Airlines
qua 11/212:30YTZ - LHR
2 stops13h 40mMultiple Airlines
Deal found 19/11£388
qui 20/1109:00LHR - YYZ
1 stop12h 10mMultiple Airlines
dom 30/1121:15YYZ - LHR
1 stop18h 20mMultiple Airlines
Deal found 19/11£389
seg 24/1106:00LHR - YTZ
2 stops16h 55mMultiple Airlines
ter 2/1208:50YTZ - LHR
2 stops17h 20mMultiple Airlines
Deal found 18/11£389
seg 8/1209:30LHR - YYZ
1 stop11h 45mLufthansa
ter 17/214:00YYZ - LHR
2 stops15h 45mLufthansa
Deal found 18/11£389
sex 21/1109:00LHR - YTZ
2 stops13h 55mMultiple Airlines
seg 24/1115:30YTZ - LHR
1 stop10h 40mMultiple Airlines
Deal found 19/11£389
sáb 22/1111:40LGW - YYZ
Nonstop8h 20mAir Transat
ter 2/1221:35YYZ - LGW
Nonstop7h 10mAir Transat
Deal found 19/11£390
sex 21/1109:00LHR - YTZ
2 stops13h 55mMultiple Airlines
qua 26/1110:25YTZ - LHR
1 stop17h 55mMultiple Airlines
Deal found 19/11£390
dom 23/1109:30LHR - YYZ
1 stop11h 45mLufthansa
sáb 29/1118:15YYZ - LHR
1 stop11h 30mLufthansa
Deal found 19/11£391
sáb 22/1109:00LHR - YTZ
2 stops13h 55mMultiple Airlines
qua 26/1112:30YTZ - LHR
2 stops14h 35mMultiple Airlines
Deal found 20/11£391
ter 2/1207:40LHR - YYZ
1 stop12h 10mLufthansa
dom 7/1218:10YYZ - LHR
Nonstop7h 20mLufthansa
Deal found 20/11£392

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 21 novembro 2025.
Use the filters below to find and compare flights from the United Kingdom to Ontario that are best for you.

Fly from

United Kingdom

Fly to

Ontario

Route

Depart

Return

Price

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

sex 13/2

11:40-15:00

Nonstop8h 20m

Toronto Pearson Intl

seg 2/3

21:35-09:45

Nonstop7h 10m

£389

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

ter 9/12

09:00-17:55

2 stops13h 55m

Toronto Island

dom 14/12

08:50-07:10

2 stops41h 20m

£392

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

qui 5/2

19:25-19:55

2 stops29h 30m

Toronto Island

ter 10/2

12:30-07:10

2 stops13h 40m

£392

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

qui 5/2

19:25-19:55

2 stops29h 30m

Toronto Island

dom 8/2

12:30-07:10

2 stops13h 40m

£392

LondonToronto

LGW - YTZ

LGWYTZ

London Gatwick

ter 13/1

18:40-17:55

2 stops28h 15m

Toronto Island

ter 20/1

10:30-17:50

2 stops26h 20m

£395

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

dom 8/3

11:55-19:15

1 stop11h 20m

Toronto Pearson Intl

qua 11/3

20:40-10:55

1 stop10h 15m

£397

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

qui 22/1

11:55-18:15

1 stop11h 20m

Toronto Pearson Intl

seg 26/1

19:40-10:55

1 stop10h 15m

£397

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

qui 22/1

18:40-18:50

2 stops29h 10m

Toronto Pearson Intl

seg 26/1

20:25-17:50

1 stop16h 25m

£398

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

sáb 7/3

11:40-15:00

Nonstop8h 20m

Toronto Pearson Intl

sáb 14/3

22:35-09:45

Nonstop7h 10m

£398

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

dom 1/3

11:55-18:15

1 stop11h 20m

Toronto Pearson Intl

qui 19/3

20:40-10:55

1 stop10h 15m

£399

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Showing 1-10 of 60 results
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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 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, August is the cheapest month in which you can book a flight from United Kingdom to Region of Ontario (average of £59). Flying from United Kingdom to Region of Ontario in December is currently the most expensive (average of £386). 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 21 novembro 2025.

When flying from United Kingdom to Region of Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 13% versus a flight in the morning.

What is the cheapest day to fly from United Kingdom to Region of Ontario?

Use this chart to determine the cheapest time to fly return from United Kingdom to Ontario. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their United Kingdom to Region of Ontario flight should consider departing on Monday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 21 novembro 2025.

The most flights from GB0 to CAON are scheduled on a Wednesday (35 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (20 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 21 novembro 2025.
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
475 reviews
Check prices

Food

6.8

Comfort

7.4

Entertainment

7.1

Boarding

7.9

Overall

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Transat
7.8
Good
475 reviews
Air Transat
7.8
Good
475 reviews
Check prices

Food

6.8

Comfort

7.4

Entertainment

7.1

Boarding

7.9

Overall

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Virgin Atlantic
7.5
Good
674 reviews
Air Transat
7.8
Good
475 reviews
Check prices

Food

6.8

Comfort

7.4

Entertainment

7.1

Boarding

7.9

Overall

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Canada
7.1
Good
10,463 reviews
Air Transat
7.8
Good
475 reviews
Check prices

Food

6.8

Comfort

7.4

Entertainment

7.1

Boarding

7.9

Overall

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Lufthansa
6.8
Okay
7,579 reviews
Air Transat
7.8
Good
475 reviews
Check prices

Food

6.8

Comfort

7.4

Entertainment

7.1

Boarding

7.9

Overall

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
British Airways
6.7
Okay
7,534 reviews
Air Transat
7.8
Good
475 reviews
Check prices

Food

6.8

Comfort

7.4

Entertainment

7.1

Boarding

7.9

Overall

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.

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 8h 20m. Fly via Air Transat, Air Canada, or Icelandair to get the fastest option. United Kingdom and Region of Ontario are separated by a distance of 3563 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 British Airways. According to our data, you can fly for as low as £280. Users have also found prices from £282 and £283 on Delta and KLM, 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, August is the cheapest month in which you can book a flight from United Kingdom to Region of Ontario (average of £59). Flying from United Kingdom to Region of Ontario in December is currently the most expensive (average of £386). 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 858,174 searches. Data last updated 21 novembro 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£41Average£566FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
RyanairCheapest£59Average£69FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
PLAYCheapest£265Average£273FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
WestJetCheapest£284Average£476FlexibilityNo cancel feeOn-time60%
Search WestJet flights
IcelandairCheapest£296Average£442FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapest£307Average£524FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest£307Average£449FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Air TransatCheapest£310Average£511FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
DeltaCheapest£314Average£573FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Aer LingusCheapest£322Average£629FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus 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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