Cheapest return flights from Washington to Keflavik in March from 362€

AirHint found the following cheapest return flights from Washington (IAD) to Keflavik (KEF) in March 2026 (see full year).

Return flights

10 Mar - 17 Mar Icelandair direct
09 Mar - 17 Mar Icelandair direct
21 Mar - 25 Mar Icelandair direct
04 Mar - 11 Mar Icelandair direct
03 Mar - 09 Mar Icelandair direct
23 Mar - 01 Apr Icelandair direct
24 Mar - 29 Mar Icelandair direct
09 Mar - 16 Mar Icelandair direct
24 Mar - 31 Mar Icelandair direct
20 Mar - 25 Mar Icelandair direct
21 Mar - 27 Mar Icelandair direct
28 Mar - 01 Apr Frontier Airlines
28 Mar - 06 Apr Frontier Airlines
27 Mar - 02 Apr Air Canada
28 Mar - 02 Apr Porter Airlines (Canada) Ltd

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

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