AirHint found the following cheapest return flights from London (LCY) to Toronto (YYZ) in December 2026 (see full year).

Return flights

01 Dec - 10 Dec	Virgin Atlantic
04 Dec - 08 Dec	Lufthansa
03 Dec - 14 Dec	Virgin Atlantic
14 Dec - 28 Dec	KLM
13 Dec - 27 Dec	KLM
24 Dec - 29 Dec	KLM
27 Dec - 10 Jan	KLM
08 Dec - 22 Dec	Lufthansa
12 Dec - 21 Dec	KLM
29 Dec - 07 Jan	SWISS
30 Dec - 10 Jan	SWISS
27 Dec - 31 Dec	KLM
25 Dec - 31 Dec	KLM
30 Dec - 06 Jan	SWISS
29 Dec - 06 Jan	SWISS
26 Dec - 09 Jan	KLM
29 Dec - 05 Jan	SWISS
28 Dec - 04 Jan	Lufthansa
26 Dec - 02 Jan	KLM
23 Dec - 05 Jan	ITA Airways

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

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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Cheapest return flights from London to Toronto in December from 436€

Return flights