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

Return flights

21 Oct - 26 Oct	WestJet	direct
22 Oct - 27 Oct	WestJet	direct
04 Oct - 07 Oct	WestJet	direct
04 Oct - 08 Oct	WestJet	direct
22 Oct - 25 Oct	WestJet	direct
03 Oct - 06 Oct	WestJet	direct
07 Oct - 10 Oct	WestJet	direct
20 Oct - 23 Oct	WestJet	direct
11 Oct - 15 Oct	WestJet	direct
01 Oct - 15 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 $143

Return flights