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

Return flights

23 Sep - 27 Oct	WestJet
23 Sep - 26 Sep	KLM
30 Sep - 07 Oct	KLM
21 Sep - 03 Oct	KLM
11 Sep - 18 Sep	Virgin Atlantic
14 Sep - 26 Sep	KLM
13 Sep - 20 Sep	Virgin Atlantic
27 Sep - 04 Oct	Alaska Airlines
01 Sep - 10 Sep	WestJet
25 Sep - 03 Oct	Virgin Atlantic
26 Sep - 03 Oct	Delta
30 Sep - 02 Oct	WestJet
20 Sep - 02 Oct	Air Canada
05 Sep - 13 Sep	WestJet
26 Sep - 04 Oct	Air Canada
02 Sep - 10 Sep	WestJet
20 Sep - 04 Oct	WestJet
12 Sep - 14 Sep	Virgin Atlantic
09 Sep - 19 Sep	Virgin Atlantic
09 Sep - 23 Sep	Delta

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 $680

Return flights