Cheapest return flights from Washington to Keflavik in May from 539€

Best time to book flights for Washington (DCA) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Washington (DCA) to Keflavik (KEF) in May 2025 (see full year).

Return flights

24 May - 28 May jetBlue
05 May - 13 May Air France
09 May - 13 May KLM
22 May - 27 May jetBlue
08 May - 14 May Air France
27 May - 03 Jun jetBlue
28 May - 04 Jun Air France
03 May - 10 May KLM
29 May - 05 Jun jetBlue
25 May - 29 May jetBlue
30 May - 06 Jun jetBlue
16 May - 23 May Air France
06 May - 10 May Icelandair
12 May - 17 May Icelandair
30 May - 08 Jun Icelandair

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

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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