Cheapest return flights from Washington to Keflavik in May from 540€

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

Return flights

27 May - 01 Jun Icelandair
26 May - 01 Jun Icelandair
29 May - 08 Jun Icelandair
13 May - 21 May Air France
24 May - 03 Jun Icelandair
31 May - 06 Jun Icelandair
14 May - 19 May United
02 May - 08 May Scandinavian Airlines
26 May - 31 May United
16 May - 22 May Scandinavian Airlines
21 May - 26 May Air France
12 May - 16 May British Airways
14 May - 18 May British Airways
27 May - 05 Jun British Airways
26 May - 03 Jun British Airways
22 May - 26 May British Airways
24 May - 06 Jun British Airways

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

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