Cheap flights from Toronto to London Heathrow

Q: What are the cheapest airlines?

British Airways, Delta Air Lines, Icelandair, KLM, Virgin Atlantic. These airlines usually offer the cheapest flights from Toronto to London Heathrow.

Q: Can I fly direct to London Heathrow?

Finnair, British Airways, Delta Air Lines, Virgin Atlantic, Air Canada. You can fly non-stop from Toronto to London Heathrow with these airlines.

Q: What airlines fly indirectly?

Aer Lingus, Icelandair, Turkish Airlines. These airlines fly from Toronto to London Heathrow, but you’ll have at least one layover.

Q: How long is the flight?

7 hrs 5 mins. This is the shortest flight time from Toronto to London Heathrow.

from as little as £397

2 nights in London, departing Toronto Lester B. Pearson International Airport on 28 / Mar / 2025 with Delta Air Lines (price found 28 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from Toronto to London Heathrow

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The Toronto / London Heathrow route

All 5698 km of it

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London Heathrow flight facts

What you need to know

What are the cheapest airlines?

British Airways
Delta Air Lines
Icelandair
KLM
Virgin Atlantic

These airlines usually offer the cheapest flights from Toronto to London Heathrow.

Can I fly direct to London Heathrow?

Finnair
British Airways
Delta Air Lines
Virgin Atlantic
Air Canada

You can fly non-stop from Toronto to London Heathrow with these airlines.

What airlines fly indirectly?

Aer Lingus
Icelandair
Turkish Airlines

These airlines fly from Toronto to London Heathrow, but you’ll have at least one layover.

How long is the flight?

7 hrs 5 mins

This is the shortest flight time from Toronto to London Heathrow.

Alternative flights from the UK to London Heathrow

Check out prices for other routes

Toronto to London City Airport

from £787 pp

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Toronto to London Gatwick

from £431 pp

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Alternative flights from Toronto

You might find cheaper flights nearby

London from Toronto Lester B. Pearson International Airport

from £397 pp

Find flights

28 / Mar / 2025 is currently the lowest priced day of the year to fly the Toronto/London Heathrow route. There are around 150 flights on any given week from the UK to London Heathrow and the cheapest month to fly right now is March.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)

LOWEST

2 °C

AVG

11 °C

HIGHEST

24 °C

Rainfall (mm)

LOWEST

38.1 mm

AVG

52.5 mm

HIGHEST

66 mm

Key facts about London Heathrow

Currency

British pound

Language

English

Timezone

0 hrs behind GMT

How to get cheap flights from Toronto to London Heathrow

Tips and advice from our flight experts

Using Netflights, you can compare different flights from Toronto to London Heathrow. Flights with Delta Air Lines are often the cheapest. But if you can’t see the dates you want, or the prices are too high, try broadening your search. London Heathrow is just one of the airports in London, so it's worth considering other options.

We compare every airline that flies from Toronto to London, so that you can find the best value flights. The most popular airlines are Finnair, British Airways & Delta Air Lines. Between them, they cover 150 flights every week from Toronto to or via London. The 5698 km journey usually takes around 8 hrs 35 mins.

Prices vary throughout the year but, right now, the cheapest date to fly is 28 / Mar / 2025. If you're looking for a budget break to United Kingdom and are flexible on dates, search for flights by month to find the best offers.

Once you’ve made your flight selection, click through to the next page to complete your booking. You can also explore accommodation and car hire options in United Kingdom by using the tabs at the top of the page.