Cheap Flights from Toronto to London

Q: How much does a flight from Toronto to London cost?

Fares from Toronto to London have recently started around CAD $650 for economy when booked in advance. Prices change daily with demand and season — use the live search above to see today's lowest fares across 600+ airlines and travel sites.

Q: Which airlines fly from Toronto to London?

Carriers commonly serving Toronto to London include Air Canada, British Airways, WestJet (Gatwick), Air Transat (Gatwick). Availability and routings change seasonally — the live search shows every airline currently selling this route, including codeshares and budget options.

Q: How long is the flight from Toronto to London?

A typical flight from Toronto to London takes about 6h 50m – 7h 45m. The route covers roughly 5,704 km (3,544 miles). Itineraries with a layover will take longer but are often cheaper.

Q: What is the cheapest time to fly from Toronto to London?

Historically, February tends to offer some of the lowest fares on the Toronto to London route as it falls outside peak demand. As a rule of thumb, booking 4–8 weeks ahead and flying mid-week (Tuesday or Wednesday) gives the best chance at a low fare.

Q: Is it better to book Toronto to London one-way or round-trip?

On most Toronto to London itineraries a round-trip ticket works out cheaper per leg than two separate one-ways, but this isn't always true on budget carriers. Compare both in the live search above before booking.

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Toronto to London: what to know before you book

Toronto–London is Canada's highest-frequency transatlantic corridor — Air Canada and British Airways run multiple daily nonstops into Heathrow, while WestJet and Air Transat serve Gatwick at leisure-market prices. That split matters: Gatwick flights are routinely CAD $100–250 cheaper, and the Gatwick Express into Victoria takes about 30 minutes, so 'cheaper airport' doesn't mean 'worse airport' here. Winter (late January–March, excluding half-term) is the reliable low season, with round-trips regularly dipping under CAD $700.

Booking tips for Toronto–London

✓ Compare Heathrow AND Gatwick before booking — metasearch defaults to 'London (all airports)' but airline sites don't, and the Gatwick carriers are usually the price floor.
✓ BA and Air Canada codeshare heavily; the same physical flight can price differently under each airline's code. Check both flight numbers.
✓ Avoid the last eastbound bank on Fridays in summer — it's the most oversold departure of the week, and involuntary-bump risk is real if you're on a basic fare.

Best time to book Toronto to London

For the Toronto to London route, fares are typically lowest when you book 4–8 weeks ahead and fly mid-week (Tuesday or Wednesday). Historically, February has offered some of the cheapest fares on this route as it sits outside peak demand.

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Pro tip

Set a price alert and run a flexible-date search — moving your trip by a day or two on Toronto–London can change the fare significantly.

Toronto to London flights — FAQ

How much does a flight from Toronto to London cost? +

Which airlines fly from Toronto to London? +

How long is the flight from Toronto to London? +

What is the cheapest time to fly from Toronto to London? +

Is it better to book Toronto to London one-way or round-trip? +

Route at a glance

Lowest price found: CAD $650
From: Toronto (YYZ)
To: London (LHR)
Flight time: 6h 50m – 7h 45m
Distance: 5,704 km (3,544 miles)
Cheapest month: February

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Airlines on this route

Air Canada, British Airways, WestJet (Gatwick), Air Transat (Gatwick)

Keep exploring

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