Cheapest return flights from Washington to Keflavik in May from 463€

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

Return flights

03 May - 10 May Virgin Atlantic
02 May - 09 May KLM
04 May - 11 May Virgin Atlantic
05 May - 12 May Virgin Atlantic
06 May - 13 May Virgin Atlantic
09 May - 16 May jetBlue
15 May - 22 May KLM
21 May - 26 May Air France
19 May - 26 May Virgin Atlantic
17 May - 28 May Delta
28 May - 01 Jun United
29 May - 01 Jun Icelandair
29 May - 08 Jun British Airways
27 May - 04 Jun British Airways
22 May - 04 Jun British Airways

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

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