Cheapest one-way flights from Toronto to London in December from $595

Best time to book flights for Toronto (YTZ) to London (LHR) flights at AirHint

AirHint found the following cheapest one-way flights from Toronto (YTZ) to London (LHR) in December 2025 (see full year).

One-Way flights

15 Dec Air Canada
19 Dec Air Canada
18 Dec Air Canada

Also check the deals for return flights from Toronto to London in December.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in London

Cheap car rent in London