Cheapest return flights from Washington to Keflavik in May from 461€

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

Return flights

01 May - 08 May KLM
02 May - 09 May Virgin Atlantic
03 May - 10 May Air France
04 May - 11 May Air France
06 May - 13 May Virgin Atlantic
01 May - 15 May KLM
07 May - 14 May Air France
14 May - 21 May Virgin Atlantic
15 May - 22 May KLM
19 May - 26 May KLM
25 May - 01 Jun jetBlue
23 May - 05 Jun British Airways

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

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