Cheapest one-way flights from Denver to Keflavik in May from 318€

AirHint found the following cheapest one-way flights from Denver (DEN) to Keflavik (KEF) in May 2026 (see full year).

One-Way flights

09 May Frontier Airlines
25 May Icelandair direct
19 May Frontier Airlines
08 May Frontier Airlines
15 May Frontier Airlines
21 May Frontier Airlines
08 May Icelandair direct
21 May Icelandair direct
15 May Icelandair direct
09 May Icelandair direct

Also check the deals for return flights from Denver to Keflavik in May.

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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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