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

Return flights

03 Dec - 13 Dec	Icelandair
01 Dec - 13 Dec	Icelandair
10 Dec - 17 Dec	Icelandair
12 Dec - 14 Dec	Icelandair
14 Dec - 11 Jan	Air Transat	direct
01 Dec - 13 Dec	Air Transat	direct
03 Dec - 13 Dec	Air Transat	direct
27 Dec - 03 Jan	TAP
21 Dec - 01 Jan	TAP
20 Dec - 03 Jan	TAP
23 Dec - 03 Jan	TAP
18 Dec - 01 Jan	TAP
19 Dec - 03 Jan	TAP
30 Dec - 09 Jan	Air Transat	direct
22 Dec - 01 Jan	TAP
12 Dec - 14 Dec	Air Transat	direct
13 Dec - 20 Dec	Icelandair
09 Dec - 16 Dec	Air Transat	direct
06 Dec - 16 Dec	Air Transat	direct
22 Dec - 07 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 $446

Return flights