Cheapest return flights from Denver to Keflavik in June from 541€

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

Return flights

03 Jun - 09 Jun Alaska Airlines
14 Jun - 23 Jun Icelandair direct
30 Jun - 10 Jul Icelandair direct
30 Jun - 07 Jul Icelandair direct
09 Jun - 16 Jun Icelandair direct
03 Jun - 16 Jun Icelandair direct
15 Jun - 30 Jun Frontier Airlines
30 Jun - 06 Jul Icelandair direct
03 Jun - 09 Jun Icelandair direct
25 Jun - 08 Jul Icelandair direct
15 Jun - 30 Jun Icelandair direct
07 Jun - 13 Jun Frontier Airlines
22 Jun - 23 Jun Icelandair direct
19 Jun - 22 Jun Icelandair direct
23 Jun - 04 Jul Frontier Airlines

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

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