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

Return flights

24 Oct - 04 Nov	Icelandair
13 Oct - 11 Nov	Icelandair
17 Oct - 26 Nov	WestJet
02 Oct - 06 Oct	Air Canada
24 Oct - 20 Nov	Air Transat
16 Oct - 21 Oct	Icelandair
23 Oct - 04 Nov	Icelandair
30 Oct - 05 Nov	Icelandair
30 Oct - 06 Nov	Lufthansa
19 Oct - 04 Nov	Icelandair
15 Oct - 20 Oct	SWISS
03 Oct - 06 Oct	Lufthansa
13 Oct - 22 Oct	Air Canada
17 Oct - 22 Oct	Icelandair
17 Oct - 21 Oct	Air Canada
18 Oct - 08 Nov	Aer Lingus
23 Oct - 02 Nov	Lufthansa
07 Oct - 15 Oct	WestJet
23 Oct - 30 Oct	Icelandair
02 Oct - 07 Oct	Air Canada

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

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 Toronto to London in October from 425€

Return flights