Cheapest return flights from Denver to Keflavik in March from 318€

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 March 2025 (see full year).

Return flights

03 Mar - 10 Mar Frontier Airlines
11 Mar - 18 Mar Frontier Airlines
03 Mar - 05 Mar Frontier Airlines
04 Mar - 11 Mar Frontier Airlines
04 Mar - 07 Mar Frontier Airlines
28 Mar - 04 Apr Frontier Airlines
05 Mar - 12 Mar Frontier Airlines
12 Mar - 19 Mar Frontier Airlines
28 Mar - 31 Mar Frontier Airlines
28 Mar - 04 Apr Icelandair direct
21 Mar - 27 Mar Frontier Airlines
06 Mar - 13 Mar Frontier Airlines

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

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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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