Cheap flights from Toronto to London Heathrow

Compare Toronto to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from Toronto to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Toronto to London Heathrow? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Toronto to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Toronto to London Heathrow flights are currently cheapest in January.

Direct flights from Toronto to London Heathrow

Toronto to London Heathrow: Alternative routes

Compare routes from Toronto to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Toronto to London: Flight information

The things to know before you go.
Cheapest flight found$277
Cheapest month to flyJanuary
Average flight time7 hrs, 13 mins
Most popular airlineAir Canada
Average flights per week313

Finding cheap flights from Toronto to London Heathrow: Frequently asked questions

The best price we found for a return flight from Toronto to London Heathrow is $630. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
7 hours and 13 minutes is the average flight time from Toronto to London Heathrow.
Air Canada, United and Lufthansa fly direct from Toronto to London Heathrow.
As of December 2025, there are 313 flights per week flying from Toronto to London Heathrow.
The cheapest month to fly from Toronto to London Heathrow is usually January.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Toronto to London Heathrow Airport on Friday, 16 January 2026.
Yes – the average flight time is 7 hours and 13 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to London Heathrow is Air Canada .

Flying from Toronto to London Heathrow Airport (LHR): What you need to know

  • When looking for your flight from Toronto to London Heathrow Airport (LHR), there's a good selection of airports to start your journey from. Pearson International Airport (YYZ), Billy Bishop Toronto City Airport (YTZ) and Region of Waterloo International Airport (YKF) are Toronto's main options.

  • 7 hours 15 minutes is the average travel time for a direct Toronto to London Heathrow Airport flight.

  • London is four hours ahead of Toronto. London Heathrow Airport is located in London, which is in the UTC+0 timezone.

  • With 43 direct weekly flights between the two airports, Pearson International Airport (YYZ) to London Heathrow Airport (LHR) is the most popular route. Air Canada operates the earliest flight at 12:40am. If you'd like to get more out of your day before flying, the last flight from YYZ to LHR is with Air Canada at 11:40pm.

  • Your flight from Toronto to LHR won't wait if you're running late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • With more people on the move during peak seasons, it's smart to get to your terminal even earlier. Two hours for domestic flights and up to four for international trips will help you deal with longer queues.

Airports in Toronto

Pearson International Airport (YYZ)

  • Pearson International Airport (YYZ) will have you travelling directly to your destination. Nonstop flights from Toronto to London Heathrow Airport (LHR) take off from this terminal.

  • Leading carriers that operate direct flights from Toronto to London Heathrow Airport departing YYZ include:

  • The airline with the highest booking numbers between YYZ and LHR is Air Canada.

  • The carrier with the most consistent on-time arrivals rate on this route is British Airways.

  • Located around 27 kilometres from central Toronto, YYZ can be reached in about 25 minutes by car, depending on traffic. The journey by public transport will take roughly 50 minutes.

  • Planning to catch an early flight from Toronto to London Heathrow Airport? Avoid rushing to the terminal (and sneak in some extra snooze time) by choosing one of these hotels close to Pearson International Airport:

  • When it comes to Pearson International Airport's on-time performance, 63.97% of flights arrive within the scheduled time frame.

Billy Bishop Toronto City Airport (YTZ)

  • With public transport, you can travel from central Toronto to YTZ in around 40 minutes. The airport is roughly 3 kilometres away, and getting there by car takes approximately 35 minutes.

  • Want to treat yourself to an extra night away before boarding your Toronto to LHR flight? Check in to a hotel near Billy Bishop Toronto City Airport before your break officially begins. Here's where you can stay:

  • 62.09% of flights out of Billy Bishop Toronto City Airport arrive within the expected time frame.

Region of Waterloo International Airport (YKF)

  • From the centre of Toronto, YKF is around 105 kilometres away. It'll take you roughly 1 hour 15 minutes to get there by car and 4 hours 5 minutes or so if you take public transport.

  • Make catching an early Toronto to London Heathrow Airport flight the easiest part of your journey. Book a room at one of these hotels near Region of Waterloo International Airport and get to your departure gate without rushing:

  • Flights that take off from YKF reach their destination as scheduled 63.64% of the time.

About London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport to the centre of London is roughly 26 kilometres. If you're taking a cab or renting a car, do a little research to make your trip as smooth as possible. Journey times may vary depending on the time of day and traffic conditions.

  • It typically takes 1 hour if you're travelling on public transport.

How to find the cheapest flights from Toronto to London Heathrow Airport (LHR)

  • $277 is the best price for a one-way ticket from Toronto to London Heathrow Airport. Return flights start at $629. These fares can change based on demand.

  • Snap up cheap flights from Toronto to LHR by booking two months ahead. Based on our research, that's the ideal time frame for finding a bargain.

  • The best month for finding cheap Toronto to London Heathrow Airport tickets is July. Use the 'Whole month' tool to compare prices, then select the dates that offer the lowest fares.

  • There's no need to check every day to find out if prices have dropped when you set up a Price Alert. We'll let you know when a new deal shows up on plane tickets from Toronto to LHR.

  • Tailor your flights using filters. Select your ideal arrival and departure times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Best' or 'Cheapest' flights from Toronto to London Heathrow Airport.

The best time to fly from Toronto to London Heathrow Airport (LHR)

  • July is the most popular month for flights from Toronto to London Heathrow Airport (LHR). Plan your visit to London in February for a quieter experience.

  • The warmest month in London is July, with temperatures ranging between 11ºC (52ºF) and 26ºC (79ºF). Book your Toronto to LHR plane ticket then if you enjoy this type of weather.

  • January sees temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Look for cheap tickets from Toronto to London Heathrow Airport around that time if you want to travel in cooler conditions.

More about London

  • When it comes to looking for somewhere to lay your head, you'll find the best stays in London right here. Browse these options as soon as you've locked in your flight from Toronto to London Heathrow Airport:

  • Your visit to London should come with a side of sightseeing. Top attractions you can't miss include The British Museum, Westminster Abbey and Big Ben.

Explore more of the United Kingdom

  • Birmingham is just one of the many cities in the United Kingdom waiting to be explored once you've taken in the sights of London. Around 153 kilometres away to the north-west, top sights here include The Windsor Castle, Birmingham Museum & Art Gallery and Birmingham Hippodrome Theatre.

  • Around 145 kilometres west of London, Bristol is another essential stop in the United Kingdom. Experience this destination's highlights firsthand at Banksey, Banksy's You Don't Need Planning Permission to Build Castles in the Sky and Clifton Suspension Bridge.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.