Cheapest return flights from Washington to Keflavik in May from 456€

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

Return flights

11 May - 18 May Scandinavian Airlines
12 May - 19 May Scandinavian Airlines
08 May - 15 May Scandinavian Airlines
13 May - 20 May Scandinavian Airlines
10 May - 17 May Scandinavian Airlines
14 May - 21 May Scandinavian Airlines
09 May - 16 May Scandinavian Airlines
15 May - 22 May Scandinavian Airlines
16 May - 23 May Scandinavian Airlines
31 May - 07 Jun jetBlue
26 May - 02 Jun United
28 May - 04 Jun United
30 May - 06 Jun United
25 May - 20 Jun United
26 May - 20 Jun United
27 May - 03 Jun United
29 May - 05 Jun jetBlue
21 May - 25 May United
30 May - 05 Jun Icelandair
22 May - 05 Jun British Airways

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

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