AirHint found the following cheapest return flights from London (LGW) to Calgary (YYC) in September 2026 (see full year).

Return flights

08 Sep - 15 Sep	WestJet
02 Sep - 16 Sep	WestJet
01 Sep - 16 Sep	WestJet
01 Sep - 19 Sep	WestJet
02 Sep - 19 Sep	WestJet
07 Sep - 12 Sep	WestJet
06 Sep - 16 Sep	WestJet
04 Sep - 18 Sep	WestJet
05 Sep - 19 Sep	WestJet
01 Sep - 13 Sep	WestJet
18 Sep - 02 Oct	Norse Atlantic Airways (UK)

Also check the deals for one-way flights from London to Calgary in September.

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 September from 632€

Return flights