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

Return flights

01 Dec - 22 Dec	Icelandair
03 Dec - 13 Dec	Icelandair
01 Dec - 06 Dec	Icelandair
01 Dec - 08 Dec	Icelandair
03 Dec - 08 Dec	Icelandair
01 Dec - 13 Dec	Icelandair
10 Dec - 21 Dec	Icelandair
03 Dec - 07 Dec	Icelandair
02 Dec - 08 Dec	Icelandair
10 Dec - 20 Dec	Icelandair
27 Dec - 03 Jan	TAP
28 Dec - 04 Jan	TAP
20 Dec - 07 Jan	TAP
23 Dec - 04 Jan	TAP
21 Dec - 04 Jan	TAP
23 Dec - 03 Jan	TAP
18 Dec - 04 Jan	TAP
15 Dec - 05 Jan	TAP
27 Dec - 10 Jan	Air Transat	direct
18 Dec - 12 Jan	Air Transat	direct

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 373€

Return flights