AirHint found the following cheapest return flights from London (LHR) to Calgary (YYC) in October 2025 (see full year).

Return flights

06 Oct - 22 Oct	Scandinavian Airlines
06 Oct - 21 Oct	Scandinavian Airlines
06 Oct - 12 Oct	Scandinavian Airlines
06 Oct - 11 Oct	Scandinavian Airlines
06 Oct - 20 Oct	Lufthansa
06 Oct - 27 Oct	Lufthansa
06 Oct - 18 Oct	Lufthansa
28 Oct - 02 Nov	Air France
05 Oct - 13 Oct	Icelandair
26 Oct - 02 Nov	Air France
27 Oct - 03 Nov	Vueling Airlines
26 Oct - 03 Nov	Vueling Airlines
07 Oct - 14 Oct	Aer Lingus
26 Oct - 09 Nov	Vueling Airlines
03 Oct - 08 Oct	Icelandair
23 Oct - 02 Nov	SWISS
23 Oct - 11 Nov	SWISS
25 Oct - 01 Nov	Air France
24 Oct - 02 Nov	Lufthansa
23 Oct - 01 Nov	SWISS

Also check the deals for one-way flights from London to Calgary 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 London to Calgary in October from 402€

Return flights