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

Return flights

24 Dec - 30 Dec	Ryanair
09 Dec - 15 Jan	Ryanair
24 Dec - 16 Jan	Ryanair
24 Dec - 11 Jan	Ryanair
04 Dec - 08 Dec	Ryanair
23 Dec - 30 Dec	Ryanair
23 Dec - 31 Dec	Ryanair
09 Dec - 27 Dec	Ryanair
03 Dec - 08 Dec	Ryanair
24 Dec - 29 Dec	Ryanair
24 Dec - 28 Dec	Ryanair
24 Dec - 31 Dec	Ryanair
05 Dec - 08 Dec	Ryanair
26 Dec - 07 Jan	Ryanair
05 Dec - 09 Jan	Ryanair
12 Dec - 09 Jan	Ryanair
24 Dec - 05 Jan	Ryanair
12 Dec - 06 Jan	Ryanair
12 Dec - 18 Jan	Ryanair
24 Dec - 14 Jan	easyJet

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