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

Return flights

20 Jan - 27 Jan	Aer Lingus
22 Jan - 29 Jan	Aer Lingus
29 Jan - 12 Feb	Aer Lingus
25 Jan - 29 Jan	Icelandair
26 Jan - 31 Jan	Aer Lingus
15 Jan - 31 Jan	Aer Lingus
19 Jan - 15 Feb	Aer Lingus
26 Jan - 01 Feb	SWISS
15 Jan - 23 Jan	Air Canada
15 Jan - 25 Jan	Air Canada
12 Jan - 21 Jan	Air Canada
27 Jan - 03 Feb	Air Canada
01 Jan - 08 Jan	Air Canada
18 Jan - 01 Feb	SWISS
10 Jan - 17 Jan	Lufthansa
29 Jan - 12 Feb	British Airways	direct
26 Jan - 01 Feb	British Airways	direct
27 Jan - 03 Feb	British Airways	direct
18 Jan - 01 Feb	British Airways	direct
19 Jan - 15 Feb	Finnair	direct

Also check the deals for one-way flights from London to Toronto in January.

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 January from $421

Return flights