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

Return flights

02 Dec - 09 Dec	Air Dolomiti
01 Dec - 08 Dec	Air Dolomiti
03 Dec - 09 Dec	Air Dolomiti
07 Dec - 15 Dec	Lufthansa
04 Dec - 14 Dec	Virgin Atlantic
01 Dec - 10 Dec	Virgin Atlantic
03 Dec - 14 Dec	Virgin Atlantic
07 Dec - 14 Dec	KLM
10 Dec - 10 Jan	Lufthansa
07 Dec - 28 Dec	KLM
17 Dec - 10 Jan	Lufthansa
07 Dec - 10 Jan	KLM
17 Dec - 23 Dec	Lufthansa
29 Dec - 11 Jan	KLM
30 Dec - 06 Jan	SWISS
28 Dec - 06 Jan	ITA Airways
25 Dec - 03 Jan	KLM
26 Dec - 03 Jan	Virgin Atlantic
24 Dec - 03 Jan	KLM
27 Dec - 03 Jan	KLM

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 503€

Return flights