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

Return flights

04 Dec - 08 Dec	Icelandair
03 Dec - 07 Dec	Icelandair
03 Dec - 08 Dec	Icelandair
04 Dec - 09 Dec	Icelandair
04 Dec - 07 Dec	Icelandair
03 Dec - 09 Dec	Icelandair
04 Dec - 13 Jan	Icelandair
04 Dec - 12 Jan	Icelandair
09 Dec - 15 Jan	Icelandair
09 Dec - 20 Jan	Icelandair
04 Dec - 10 Dec	Icelandair
03 Dec - 10 Dec	Icelandair
03 Dec - 14 Jan	Icelandair
04 Dec - 11 Dec	Icelandair
10 Dec - 18 Jan	TAP
10 Dec - 15 Jan	Icelandair
10 Dec - 12 Jan	Icelandair
02 Dec - 10 Dec	Ryanair
10 Dec - 06 Jan	Icelandair
10 Dec - 11 Jan	Icelandair

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.

Book a cheap hotel in Toronto

Cheap car rent in Toronto

Cheapest return flights from London to Toronto in December from 391€

Return flights