Cheapest return flights from Denver to Keflavik in October from $579

AirHint found the following cheapest return flights from Denver (DEN) to Keflavik (KEF) in October 2026 (see full year).

Return flights

22 Oct - 01 Nov Icelandair direct
27 Oct - 09 Nov Icelandair direct
05 Oct - 13 Oct Icelandair direct
27 Oct - 01 Nov Icelandair direct
05 Oct - 09 Oct Icelandair direct
12 Oct - 16 Oct Icelandair direct

Also check the deals for one-way flights from Denver to Keflavik in October.

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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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