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

Return flights

31 Oct - 12 Nov	Air Canada
31 Oct - 13 Nov	Lufthansa
31 Oct - 13 Nov	WestJet	direct
29 Oct - 05 Nov	Delta
28 Oct - 04 Nov	Delta
31 Oct - 07 Nov	Norse Atlantic Airways (UK)
30 Oct - 20 Nov	Delta
29 Oct - 08 Nov	Ryanair
27 Oct - 03 Nov	Delta
26 Oct - 19 Nov	Air France
28 Oct - 29 Oct	easyJet
26 Oct - 29 Oct	Wizz Air Malta
28 Oct - 29 Oct	WestJet	direct
26 Oct - 29 Oct	WestJet	direct
27 Oct - 31 Oct	WestJet	direct
27 Oct - 30 Oct	WestJet	direct
26 Oct - 28 Oct	WestJet	direct
26 Oct - 30 Oct	WestJet	direct
26 Oct - 31 Oct	WestJet	direct

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 $467

Return flights