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Cheap flights from London to Toronto from $549

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — YTO
6 May — 13 May1
1 adult

Cheapflights Tip: The best prices from London to Toronto are usually found in February or March, booked 59 days in advance, depart on a Wednesday or Friday and return on a Thursday

Cheap flight deals from London to Toronto

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Toronto (YTO). 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 1 May 2025.

Round-trip from

$703

One-way from

$549

Popular in

August

Cheapest in

February

Average price

$846

Good round-trip deal

$846 or less
Air Canada
  • Air Canada
  • 14/6-21/6
  • 2 total stops
  • 22h 20m total
  • London to Toronto
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18/8
  • 18/8
  • 1 total stop
  • 21h 35m total
  • London to Toronto
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Highest demand for flights based on searches. 12% potential increase in price ($198 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($41 potential savings vs. average return price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from London (LON) to Toronto (YTO).
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Find flight deals from London to Toronto

Cheapest flights from London to Toronto
Explore the most affordable flight options available from London to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2025.

Sat 14/608:30LHR - YYZ
1 stop12h 50mMultiple Airlines
Sat 21/606:30YYZ - LHR
1 stop9h 30mMultiple Airlines
Deal found 30/4$703
Thu 18/906:00LHR - YYZ
1 stop12h 55mTAP AIR PORTUGAL
Sun 5/1017:35YYZ - LHR
1 stop11h 45mTAP AIR PORTUGAL
Deal found 30/4$708
Wed 3/915:40LGW - YYZ
1 stop11h 15mIcelandair
Tue 30/920:50YYZ - LGW
1 stop12h 50mIcelandair
Deal found 30/4$708
Fri 6/609:30LHR - YYZ
1 stop11h 50mLufthansa
Thu 19/618:20YYZ - LHR
Nonstop7h 15mLufthansa
Deal found 30/4$710
Thu 5/608:40LHR - YTZ
2 stops14h 10mMultiple Airlines
Wed 25/620:25YTZ - LHR
1 stop8h 35mMultiple Airlines
Deal found 30/4$711
Fri 6/611:35LGW - YYZ
1 stop10h 50mAir Transat
Wed 25/622:45YYZ - LGW
Nonstop7h 00mAir Transat
Deal found 30/4$714
Wed 3/918:40LHR - YYZ
1 stop23h 10mSWISS
Sun 28/916:35YYZ - LHR
1 stop20h 15mSWISS
Deal found 30/4$727
Sun 1/609:30LHR - YTZ
1 stop17h 05mAir Canada
Sun 8/615:25YTZ - LHR
1 stop13h 35mAir Canada
Deal found 29/4$731
Fri 16/506:20LHR - YYZ
1 stop14h 20mBritish Airways
Thu 22/518:05YYZ - LHR
Nonstop7h 10mBritish Airways
Deal found 30/4$736
Sun 8/619:30LHR - YYZ
1 stop23h 20mAustrian Airlines
Mon 23/617:45YYZ - LHR
1 stop34h 15mAustrian Airlines
Deal found 30/4$746
Wed 4/618:35LGW - YYZ
2 stops24h 15mSWISS
Sun 8/620:15YYZ - LGW
1 stop16h 35mSWISS
Deal found 30/4$761
Tue 23/919:15LHR - YTZ
2 stops27h 30mSWISS
Sun 28/917:25YTZ - LHR
2 stops18h 10mSWISS
Deal found 30/4$769

Cheapflights Fare Finder

Customise your flight search to find flights from London to Toronto 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 647,157 searches. Data last updated 1 May 2025.
Use the filters below to find and compare flights from London to Toronto that are best for you.

Fly from

London

Fly to

Toronto

Route

Depart

Return

Price

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Sat 14/6

08:30-16:20

1 stop12h 50m

Toronto Pearson Intl

Sat 21/6

06:30-21:00

1 stop9h 30m

$703

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 18/9

06:00-13:55

1 stop12h 55m

Toronto Pearson Intl

Sun 5/10

17:35-10:20

1 stop11h 45m

$708

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Wed 3/9

15:40-21:55

1 stop11h 15m

Toronto Pearson Intl

Tue 30/9

20:50-14:40

1 stop12h 50m

$708

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 6/6

09:30-16:20

1 stop11h 50m

Toronto Pearson Intl

Thu 19/6

18:20-06:35

Nonstop7h 15m

$710

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Thu 5/6

08:40-17:50

2 stops14h 10m

Toronto Island

Wed 25/6

20:25-10:00

1 stop8h 35m

$711

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Fri 6/6

11:35-17:25

1 stop10h 50m

Toronto Pearson Intl

Wed 25/6

22:45-10:45

Nonstop7h 00m

$714

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Wed 3/9

08:40-12:50

1 stop33h 10m

Toronto Pearson Intl

Mon 29/9

20:15-17:50

1 stop16h 35m

$727

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Sun 1/6

09:30-21:35

1 stop17h 05m

Toronto Island

Sun 8/6

15:25-10:00

1 stop13h 35m

$731

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 16/5

06:20-15:40

1 stop14h 20m

Toronto Pearson Intl

Thu 22/5

18:05-06:15

Nonstop7h 10m

$736

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Sun 8/6

19:30-13:50

1 stop23h 20m

Toronto Pearson Intl

Mon 23/6

17:45-09:00

1 stop34h 15m

$746

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 47 results
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Best time to book a flight from London to Toronto

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

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

Use this chart to determine the optimal time to book a return flight from London to Toronto. Price data was last updated on 25 April 2025.

To ensure you get the cheapest price possible for a flight from London to Toronto, you should look to book at least 59 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, May is the cheapest month in which you can book a flight from London to Toronto (average of $1,218). Flying from London to Toronto in December is currently the most expensive (average of $2,013). 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 LON to YTO?

Find hourly flight availability from London to Toronto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 May 2025.

One of the essential ways to save on airfare from London to Toronto is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at midday could potentially save you up to 5% on airfare.

Weekly flight availability from London to Toronto

Explore weekly flight availability from London to Toronto. 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 1 May 2025.

The most flights from LON to YTO are scheduled on a Thursday (41 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (31 on average).

Rainfall in Toronto by month

Plan your trip to Toronto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Toronto ranges from 51.0 - 83.0 inches per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Toronto when rainfall is around 51.0 mm.

Temperature in Toronto by month

Plan your trip to Toronto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Toronto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Toronto

Get insights into the airlines that provide service to Toronto. 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 Toronto. Reviews last updated 1 May 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Air Transat from London to Toronto to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,934 reviews
Check prices

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Delta
8.0
Very Good
7,934 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Air Transat
7.8
Good
385 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Austrian Airlines
7.6
Good
781 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Related info for your journey

Find useful and relevant information for your journey from London to Toronto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Currently priced at $708, TAP AIR PORTUGAL will fly you from London to Toronto and back. In addition to TAP AIR PORTUGAL, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Icelandair and Lufthansa - these airlines can fly you to your destination from $708 and $710, respectively. TAP AIR PORTUGAL is currently priced 21% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with Air Transat, which is currently one of the cheapest options available, starting at $566. Aer Lingus flights start at $821 while deals on WestJet start at $932 one-way.

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

    When deciding which route to take from London to Toronto, consider London Heathrow - Toronto Pearson Intl, London Heathrow - Toronto Island or London Gatwick - Toronto Pearson Intl, as they are the most popular.

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

    No one likes to see their flight delayed. When booking a flight from London to Toronto consider choosing Croatia Airlines(89%), KLM(88%) or Air France(88%), as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from London to Toronto?

    On average you can expect to pay $855 for a flight from London to Toronto. The cheapest flight overall is $837 while the most popular route, (London Heathrow - Toronto Pearson Intl) is currently priced at $678.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from London to Toronto (average of $1,218). Flying from London to Toronto in December is currently the most expensive (average of $2,013). 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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Top airline flying from London to Toronto

Discover the top airline that operate flights from London to Toronto. 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 647,157 searches. Data last updated 1 May 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$819Average$854FlexibilityNo cancel feeOn-time67%
Search Air Canada 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 London to Toronto?

Cheapflights makes it easy to find London to Toronto flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to Toronto?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Toronto from London.

Can Cheapflights find flights from London to Toronto with no change fees?

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

Can Cheapflights notify me if prices for flights from London to Toronto become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Toronto from London today and book when prices fit your budget.

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