Cheapest return flights from London to Calgary in September from 644€

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

Return flights

08 Sep - 15 Sep KLM
05 Sep - 09 Sep Finnair
07 Sep - 12 Sep Finnair
04 Sep - 13 Sep Finnair
16 Sep - 30 Sep Aer Lingus
01 Sep - 12 Sep Finnair
10 Sep - 15 Sep KLM
03 Sep - 17 Sep Finnair
01 Sep - 11 Sep Finnair
02 Sep - 12 Sep Delta
02 Sep - 06 Oct KLM
15 Sep - 01 Oct Virgin Atlantic
19 Sep - 03 Oct Aer Lingus
26 Sep - 09 Oct Lufthansa
26 Sep - 09 Oct Air Canada direct

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

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