Cheapest return flights from Denver to Keflavik in June from $651

Best time to book flights for Denver (DEN) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Denver (DEN) to Keflavik (KEF) in June 2025 (see full year).

Return flights

13 Jun - 20 Jun Icelandair direct
29 Jun - 07 Jul Icelandair direct
24 Jun - 02 Jul Icelandair direct
26 Jun - 04 Jul Icelandair direct
27 Jun - 05 Jul Icelandair direct
28 Jun - 06 Jul Icelandair direct
25 Jun - 03 Jul Icelandair direct
23 Jun - 01 Jul Sun Country Airlines
23 Jun - 01 Jul Icelandair direct

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

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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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