Cheapest return flights from Washington to Keflavik in March from 443€

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

Return flights

16 Mar - 21 Mar Scandinavian Airlines
31 Mar - 05 Apr KLM
18 Mar - 23 Mar Scandinavian Airlines
19 Mar - 23 Mar Scandinavian Airlines
30 Mar - 04 Apr jetBlue
29 Mar - 04 Apr jetBlue
29 Mar - 02 Apr Scandinavian Airlines
12 Mar - 20 Mar British Airways
26 Mar - 05 Apr British Airways
30 Mar - 05 Apr British Airways

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

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