Cheapest return flights from London to Toronto in December from $545

Best time to book flights for London (LCY) to Toronto (YYZ) flights at AirHint

AirHint found the following cheapest return flights from London (LCY) to Toronto (YYZ) in December 2025 (see full year).

Return flights

03 Dec - 07 Dec Delta
15 Dec - 15 Jan Delta
26 Dec - 28 Dec Lufthansa
01 Dec - 08 Dec SWISS
23 Dec - 07 Jan Lufthansa
09 Dec - 31 Dec KLM
12 Dec - 30 Dec Delta
12 Dec - 31 Dec Delta
12 Dec - 01 Jan Delta
22 Dec - 07 Jan Lufthansa
22 Dec - 08 Jan SWISS
12 Dec - 04 Jan Delta
24 Dec - 07 Jan KLM
05 Dec - 13 Dec KLM
24 Dec - 06 Jan Delta
03 Dec - 14 Dec KLM
05 Dec - 14 Dec KLM
17 Dec - 28 Dec British Airways
29 Dec - 31 Jan Delta
23 Dec - 06 Jan Lufthansa

Also check the deals for one-way flights from London to Toronto 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.

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