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

Return flights

31 Oct - 03 Nov	Air Canada
31 Oct - 12 Nov	Lufthansa
31 Oct - 12 Nov	Lufthansa	direct
31 Oct - 06 Nov	Air Canada
31 Oct - 07 Nov	Air Canada
31 Oct - 15 Nov	Vueling Airlines
31 Oct - 17 Nov	Vueling Airlines
31 Oct - 09 Nov	Vueling Airlines
31 Oct - 11 Nov	Vueling Airlines
31 Oct - 15 Nov	WestJet	direct
22 Oct - 28 Oct	WestJet	direct
21 Oct - 29 Oct	Aer Lingus
21 Oct - 27 Oct	Finnair
23 Oct - 27 Oct	Finnair
22 Oct - 29 Oct	Air France
22 Oct - 30 Oct	Air France
21 Oct - 26 Oct	KLM
24 Oct - 27 Oct	KLM
24 Oct - 30 Oct	Air France
24 Oct - 28 Oct	Air France

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 387€

Return flights