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Cheap flights from Toronto to London Heathrow Airport from £174

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 23/10. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — LHR
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Toronto to London Heathrow are usually found in February or January, booked 82 days in advance, depart on a Thursday or Monday and return on a Thursday

Cheap flight deals from Toronto to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Toronto (YTO) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 September 2025.

Round-trip from

£381

One-way from

£174

Popular in

December

Cheapest in

February

Average price

£474

Good round-trip deal

£459 or less

Good one-way deal

£311 or less
Icelandair
  • Icelandair
  • 16/10-3/11
  • 2 total stops
  • 58h 35m total
  • Toronto to London
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23/10
  • 23/10
  • 1 total stop
  • 18h 55m total
  • Toronto to London
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Highest demand for flights based on searches. 1% potential increase in price (£5 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Toronto (YTO) to London Heathrow.
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Price to beat on a one-way flight from Toronto (YTO) to London Heathrow.
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Find flight deals from Toronto to Heathrow

Cheapest flights from Toronto to Heathrow
Explore the most affordable flight options available from Toronto to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Thu 16/1023:00YYZ - LHR
1 stop31h 55mIcelandair
Tue 21/1021:25LHR - YYZ
1 stop26h 45mIcelandair
Deal found 16/9£381
Sat 25/1023:00YYZ - LHR
1 stop31h 50mIcelandair
Wed 5/1112:15LHR - YYZ
1 stop11h 00mIcelandair
Deal found 17/9£382
Thu 16/1023:00YYZ - LHR
1 stop31h 55mIcelandair
Wed 22/1021:25LHR - YYZ
1 stop29h 30mIcelandair
Deal found 17/9£382
Wed 8/1023:00YYZ - LHR
1 stop31h 55mIcelandair
Wed 15/1021:25LHR - YYZ
1 stop29h 30mIcelandair
Deal found 16/9£385
Thu 23/1023:00YYZ - LHR
1 stop31h 55mIcelandair
Wed 12/1112:15LHR - YYZ
1 stop11h 00mIcelandair
Deal found 15/9£385
Thu 23/1008:50YTZ - LHR
1 stop16h 40mAir Canada
Thu 6/1106:00LHR - YTZ
2 stops15h 55mAir Canada
Deal found 16/9£386
Thu 23/1023:00YYZ - LHR
1 stop31h 55mIcelandair
Thu 6/1112:15LHR - YYZ
1 stop11h 00mIcelandair
Deal found 16/9£386
Fri 24/1020:50YYZ - LHR
1 stop10h 05mIcelandair
Thu 6/1120:35LHR - YYZ
1 stop26h 40mIcelandair
Deal found 17/9£387
Fri 24/1010:25YTZ - LHR
1 stop15h 05mAir Canada
Thu 6/1106:00LHR - YTZ
2 stops15h 55mAir Canada
Deal found 17/9£388
Wed 24/919:55YYZ - LHR
1 stop14h 45mMultiple Airlines
Thu 6/1109:50LHR - YYZ
1 stop11h 05mMultiple Airlines
Deal found 16/9£388
Fri 21/1119:40YYZ - LHR
1 stop10h 10mIcelandair
Mon 24/1120:35LHR - YYZ
1 stop26h 40mIcelandair
Deal found 17/9£388
Fri 24/1008:50YTZ - LHR
2 stops16h 40mAir Canada
Sun 2/1105:50LHR - YTZ
2 stops13h 05mAir Canada
Deal found 16/9£389

Cheapflights Fare Finder

 
Customise your flight search to find flights from Toronto to Heathrow 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 18 September 2025.
Use the filters below to find and compare flights from Toronto to London Heathrow Airport that are best for you.

Fly from

Toronto

Fly to

Heathrow

Route

Depart

Return

Price

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 13/10

23:00-20:20

1 stop16h 20m

London Heathrow

Thu 23/10

21:25-21:55

1 stop29h 30m

£382

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 26/1

19:40-10:50

1 stop10h 10m

London Heathrow

Mon 2/2

12:15-18:15

1 stop11h 00m

£402

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 20/1

19:40-19:30

1 stop18h 50m

London Heathrow

Sat 31/1

12:15-18:15

1 stop11h 00m

£402

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Wed 8/10

16:10-08:35

1 stop11h 25m

London Heathrow

Wed 15/10

14:05-21:34

1 stop12h 29m

£421

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Tue 14/10

12:25-06:30

1 stop13h 05m

London Heathrow

Tue 31/3

14:05-19:52

1 stop10h 47m

£421

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Wed 21/1

15:30-07:10

1 stop10h 40m

London Heathrow

Mon 2/2

13:25-21:35

1 stop13h 10m

£422

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Tue 27/1

15:30-07:10

1 stop10h 40m

London Heathrow

Mon 2/2

13:25-19:55

1 stop11h 30m

£424

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Mon 24/11

10:30-07:10

1 stop15h 40m

London Heathrow

Wed 3/12

13:25-19:55

1 stop11h 30m

£424

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Wed 26/11

15:30-07:10

1 stop10h 40m

London Heathrow

Wed 3/12

13:25-19:55

1 stop11h 30m

£424

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Mon 24/11

15:30-07:10

1 stop10h 40m

London Heathrow

Mon 1/12

13:25-21:35

1 stop13h 10m

£424

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 56 results
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Best time to book a flight from Toronto to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Toronto 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 Toronto to London Heathrow Airport

How far ahead should I book a flight from Toronto to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Toronto to Heathrow. Price data was last updated on 12 September 2025.

The best time to book flights from Toronto to London Heathrow Airport is 82 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.

What is the cheapest month to book a flight from Toronto to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Toronto to London Heathrow Airport (average of £112). Flying from Toronto to London Heathrow Airport in August is currently the most expensive (average of £164). 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 YTO to LHR?

Find hourly flight availability from Toronto to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 7% on flights from Toronto to London Heathrow Airport by exploring options for tickets at midday.

Weekly flight availability from Toronto to London Heathrow Airport

Explore weekly flight availability from Toronto to Heathrow. 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 18 September 2025.

The most flights from YTO to LHR are scheduled on a Monday (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (34 on average).

What’s the top stopover airport for flights from Toronto to London Heathrow Airport?

Share of one-stop return flights from Toronto to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 34% of one-stop itineraries from Toronto to London Heathrow Airport on Cheapflights.

What’s the cheapest stopover airport for flights from Toronto to London Heathrow Airport?

Average return fare for one-stop flights from Toronto to London Heathrow Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Lisbon (LIS) is the most affordable one-stop option, with an average return flight price of £370.

What’s the fastest stopover option from Toronto to London Heathrow Airport?

Shortest average travel time for one-stop one-way flights from Toronto to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Ottawa (YOW) have the shortest average one-way travel time for one-stop routes: 9h 15m.

Which airport typically offers the quickest stopover for flights from Toronto to London Heathrow Airport?

Average stopover duration for one-stop one-way flights from Toronto to London Heathrow Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Halifax (YHZ) offer the fastest connection on this route, with an average stopover time of 1h 10m.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 18 September 2025.
Read reviews from past customers who have flown with Virgin Atlantic, Air Canada, andLufthansa from Toronto to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Food

6.9

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.4
Good
664 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Food

6.9

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Air Canada
7.1
Good
10,000 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Food

6.9

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Lufthansa
6.8
Okay
7,409 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Food

6.9

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,367 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Food

6.9

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Related info for your journey

Find useful and relevant information for your journey from Toronto to Heathrow. 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 Toronto to London Heathrow Airport?

    For as low as £421, Icelandair can have you in London Heathrow Airport from Toronto in 11h 25m. Airlines will cover a distance of 3537 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Toronto to London Heathrow Airport round-trip?

    Currently priced at £359, Aer Lingus will fly you from Toronto to London Heathrow Airport and back. In addition to Aer Lingus, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Icelandair and Air Canada - these airlines can fly you to your destination from £360 and £371, respectively. Aer Lingus is currently priced 25% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Toronto to London Heathrow Airport one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as £202. Users have also found prices from £215 and £219 on WestJet and Lufthansa, respectively.

  • What are the most popular routes from Toronto to London Heathrow Airport?

    Most travelers choose Toronto Pearson Intl - London Heathrow, Toronto Island - London Heathrow or Hamilton - London Heathrow when deciding on the best route from Toronto to London Heathrow Airport.

  • What are the most reliable airlines from Toronto to London Heathrow Airport?

    The top 3 most reliable airlines when flying from Toronto to London Heathrow Airport are KLM (87%), Air France (87%) and Delta (87%).

  • What are the cheapest flights from Toronto to London Heathrow Airport?

    Looking at all options, your cheapest flight can be booked for £218. While the most popular route (Toronto Pearson Intl - London Heathrow) can be booked for £292 on average, our data indicates £598 when flying from Toronto to London Heathrow Airport.

  • Can I find deals for flights from Toronto to Heathrow that include hotel bookings?

    Yes. In addition to deals on Toronto to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Toronto to Heathrow?

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

  • Can I find deals for business class flights from Toronto to Heathrow?

    Yes. Cheapflights offers flight deals from Toronto to Heathrow 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 Toronto to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Toronto to London Heathrow Airport (average of £112). Flying from Toronto to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Slough
Gatwick
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Winchester
Chichester
Ipswich
Swindon
Dartford
Guildford
Brentford

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Toronto to Heathrow

Discover the top 10 airlines that operate flights from Toronto to Heathrow. 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 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£359Average£448FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapest£360Average£471FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air CanadaCheapest£371Average£492FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapest£376Average£508FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£382Average£509FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£392Average£609FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£395Average£520FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£408Average£450FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£410Average£410FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest£463Average£564FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Toronto to Heathrow?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Toronto to Heathrow. 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 Toronto to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Toronto to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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Yes! Cheapflights helps users easily find flights from Toronto to Heathrow with no change fees.

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Of course! You can now track prices for flights from Toronto to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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