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

Return flights

09 Dec - 16 Dec	easyJet
19 Dec - 09 Jan	Ryanair
19 Dec - 10 Jan	Ryanair
09 Dec - 13 Dec	easyJet
27 Dec - 10 Jan	easyJet
02 Dec - 30 Dec	easyJet
31 Dec - 31 Jan	Ryanair
21 Dec - 02 Jan	Ryanair
20 Dec - 01 Jan	Ryanair
16 Dec - 25 Dec	easyJet
01 Dec - 10 Dec	easyJet
23 Dec - 06 Jan	Ryanair
27 Dec - 30 Dec	easyJet
05 Dec - 08 Dec	easyJet
05 Dec - 12 Dec	easyJet
25 Dec - 01 Jan	Wizz Air
24 Dec - 01 Jan	Ryanair
01 Dec - 07 Dec	easyJet
23 Dec - 01 Jan	Ryanair
17 Dec - 24 Dec	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 529€

Return flights