Cheapest return flights from Calgary to London in September from 633€

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

Return flights

16 Sep - 30 Sep Air Canada
11 Sep - 03 Oct Air Canada
23 Sep - 05 Oct Air Canada
24 Sep - 01 Oct Air Canada direct
16 Sep - 28 Sep Air Canada
08 Sep - 15 Sep Finnair
03 Sep - 05 Sep WestJet
04 Sep - 13 Sep Air Canada
16 Sep - 28 Sep WestJet direct
08 Sep - 15 Sep WestJet direct
03 Sep - 05 Sep WestJet direct

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

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