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

Return flights

08 Oct - 14 Oct	SWISS
16 Oct - 25 Oct	SWISS
15 Oct - 25 Oct	SWISS
21 Oct - 26 Oct	SWISS
07 Oct - 21 Oct	SWISS
29 Oct - 09 Nov	Air Dolomiti
07 Oct - 16 Oct	SWISS
16 Oct - 28 Oct	SWISS
28 Oct - 03 Nov	Lufthansa
14 Oct - 21 Oct	SWISS
09 Oct - 13 Oct	Lufthansa
09 Oct - 14 Oct	Lufthansa
22 Oct - 03 Nov	Lufthansa
30 Oct - 04 Nov	Lufthansa
16 Oct - 06 Nov	SWISS
24 Oct - 04 Nov	Virgin Atlantic
21 Oct - 04 Nov	Virgin Atlantic
31 Oct - 04 Nov	Air Dolomiti
16 Oct - 04 Nov	Air Dolomiti
28 Oct - 06 Nov	Lufthansa

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

Book a cheap hotel in Toronto

Cheap car rent in Toronto

Cheapest return flights from London to Toronto in October from 437€

Return flights