Cheapest return flights from Washington to Keflavik in May from 522€

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

Return flights

16 May - 24 May Delta
10 May - 08 Jun Air France
30 May - 04 Jun Icelandair
22 May - 27 May Icelandair
13 May - 21 May British Airways
14 May - 18 May British Airways
15 May - 19 May British Airways
14 May - 17 May British Airways

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

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