Cheap Flights from Toronto (YTOA) to London Heathrow (LHR)

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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 round-trip flight from Toronto to London Heathrow? Find the lowest prices on one-way and round-trip tickets right here.

When is the cheapest time 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 July.

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$234
Cheapest month to flyJuly
Average flight time7 hrs, 15 mins
Most popular airlineUnited
Average flights per week294

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

The best price we found for a round-trip flight from Toronto to London Heathrow is $401. 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 15 minutes is the average flight time from Toronto to London Heathrow.
United, Air Canada and Lufthansa fly direct from Toronto to London Heathrow.
There are 590 flights per week flying from Toronto to London Heathrow, as of April 2025.
The cheapest month to fly from Toronto to London Heathrow is usually April 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Toronto to London Heathrow Airport on Wednesday, October 8, 2025.
Yes – the average flight time is 7 hours and 15 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 Lufthansa.

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

  • When searching for a flight from Toronto to London Heathrow Airport (LHR), there's a range of airports to depart from. Pearson International Airport (YYZ), Billy Bishop Toronto City Airport (YTZ) and Region of Waterloo International Airport (YKF) are among Toronto's main options.

  • Expect to be traveling for 7 hours 8 minutes. That's the average time for a direct flight from Toronto to London Heathrow Airport.

  • The timezone in London is UTC+0, which is 4 hours ahead of Toronto. London Heathrow Airport is located in London.

  • With 54 direct flights a week 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 00:40. If you'd like to make the most of your day before jetting off, the last flight from YYZ to LHR is with Air Canada at 23:45.

  • To ensure you catch your flight from Toronto to LHR, allow plenty of time to check in and find your gate. Arriving two hours before international departures and an hour before domestic flights is the standard rule.

  • Head to the airport even earlier during popular months like August. Aim for two hours before a domestic departure and four hours ahead of international journeys. Once you've checked in, you can use any extra time to grab something to eat or simply relax.

Airports in Toronto

Pearson International Airport (YYZ)

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

  • You can book a direct flight from Toronto to London Heathrow Airport with Air Canada. This popular carrier offers services from YYZ.

  • The journey from central Toronto to YYZ takes approximately 49 minutes by public transport. If you ride-share, drive or grab a cab, you'll cover the 17 miles in 26 minutes or so, depending on traffic conditions.

  • Catching an early flight from Toronto to London Heathrow Airport? Avoid the last-minute rush to the terminal (and enjoy a little extra shut-eye) by picking one of these stays near Pearson International Airport:

Billy Bishop Toronto City Airport (YTZ)

  • Planning to leave from Billy Bishop Toronto City Airport (YTZ)? You can book a direct flight from Toronto to London Heathrow Airport (LHR) departing from this hub.

  • Air Canada operates direct flights from Toronto to LHR departing from YTZ. Book your favorite aisle (or window) seat and arrive at your destination in one go.

  • Break up your flight from Toronto to London Heathrow Airport with a stop so you can stretch your legs or perhaps go somewhere you've never been before. Some top stopovers between Billy Bishop Toronto City Airport and LHR are:

    • Montreal-Pierre Elliott Trudeau International Airport (YUL)

    • Edinburgh Airport (EDI)

    • Dublin Airport (DUB)

  • You can get to YTZ from central Toronto in approximately 35 minutes by car (depending on traffic conditions). The ride on public transport will take roughly 39 minutes to travel the 2 miles or so.

  • Get a head start on your vacation with an extra night away from home. Before your flight from Toronto to LHR, unwind in one of these hotels near Billy Bishop Toronto City Airport:

About London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport to the center of London is around 57 minutes in a car. It's approximately 19 miles away. Discover what options are available, such as cabs, car rentals or ride-sharing services.

  • If you're taking public transport, expect a journey of roughly 1 hour and 1 minute.

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

  • For a one-way ticket from Toronto to London Heathrow Airport, $234 is the best price we've seen. You can also book a return flight starting from $401. These are the lowest fares right now and may vary based on availability.

  • We recommend booking 10 months before takeoff. Flight price data suggests you're more likely to find cheap tickets from Toronto to LHR within that timeframe.

  • July is the cheapest month for tickets from Toronto to London Heathrow Airport. If you'd like to travel at a different time of year, use the 'Whole month' search feature to see the lowest prices for each month.

  • Set up a Price Alert and keep track of changes on this route through email or push notifications. You'll know straight away when prices drop. Timing is key for finding cheap tickets from Toronto to LHR.

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

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

  • February is the quietest time to travel to London. Alternatively, join the crowds and take off in July. This is the most popular month for flights from Toronto to London Heathrow Airport, but the best time to go is your call.

  • Think about the kind of weather that'll suit your plans for London. July is known as the warmest month. Book your flights from Toronto to LHR during then and you can expect temperatures of between 52ºF and 79ºF.

  • Search for cheap flights from Toronto to London Heathrow Airport in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between 32ºF and 48ºF on average.

More about London

Complete your London trip with a car rental

  • Choose one of our car rentals in London and see the city at your own pace. Easily compare rates from trusted providers in one place after booking your hotel and cheap flights from Toronto to London Heathrow Airport.

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