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

Return flights

29 Sep - 06 Oct	WestJet
28 Sep - 04 Oct	WestJet
24 Sep - 07 Oct	WestJet
29 Sep - 07 Oct	WestJet
29 Sep - 09 Oct	WestJet
21 Sep - 11 Oct	WestJet
29 Sep - 14 Oct	WestJet
29 Sep - 04 Oct	WestJet
19 Sep - 11 Oct	WestJet
24 Sep - 30 Sep	WestJet
22 Sep - 30 Sep	WestJet
07 Sep - 15 Sep	WestJet
30 Sep - 06 Oct	WestJet
06 Sep - 15 Sep	WestJet
05 Sep - 15 Sep	WestJet
23 Sep - 30 Sep	WestJet

Also check the deals for one-way flights from Edmonton to Keflavik 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 Keflavik in September from $426

Return flights