AirHint found the following cheapest return flights from Edmonton (YEG) to London (LHR) in September 2025 (see full year).

Return flights

19 Sep - 23 Sep	WestJet
22 Sep - 07 Oct	KLM
12 Sep - 17 Sep	WestJet
20 Sep - 04 Oct	Air Canada
19 Sep - 04 Oct	Lufthansa
21 Sep - 06 Oct	Air Canada
23 Sep - 14 Oct	WestJet
22 Sep - 03 Oct	Air Canada
11 Sep - 25 Sep	WestJet
18 Sep - 25 Sep	WestJet
26 Sep - 28 Sep	Alaska Airlines
09 Sep - 15 Sep	WestJet
26 Sep - 30 Sep	Porter Airlines (Canada) Ltd
04 Sep - 17 Sep	WestJet
15 Sep - 20 Sep	Air Canada
23 Sep - 27 Sep	WestJet
22 Sep - 12 Oct	WestJet
01 Sep - 04 Oct	WestJet

Also check the deals for one-way flights from Edmonton to London 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 Edmonton to London in September from $679

Return flights