Cheapest return flights from Washington to Keflavik in May from 469€

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

Return flights

30 May - 07 Jun Icelandair direct
31 May - 08 Jun Icelandair direct
08 May - 14 May Scandinavian Airlines
11 May - 25 May Icelandair direct
09 May - 15 May Icelandair direct
29 May - 06 Jun Icelandair direct
13 May - 06 Jun Lufthansa
08 May - 14 May Icelandair direct
13 May - 06 Jun Icelandair direct
12 May - 20 May British Airways

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

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