Cheapest return flights from Keflavik to Copenhagen in September from $305

AirHint found the following cheapest return flights from Keflavik (KEF) to Copenhagen (CPH) in September 2026 (see full year).

Return flights

26 Sep - 05 Oct easyJet
27 Sep - 07 Oct Icelandair
29 Sep - 05 Oct Icelandair direct
27 Sep - 07 Oct Icelandair direct
26 Sep - 05 Oct Icelandair direct

Also check the deals for one-way flights from Keflavik to Copenhagen in September.

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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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