Cheapest return flights from Denver to Keflavik in April from 527€

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

Return flights

17 Apr - 02 May Lufthansa
24 Apr - 04 May Icelandair direct
18 Apr - 03 May Icelandair direct

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

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