Cheapest return flights from Washington to Keflavik in May from 645€

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

11 May - 19 May British Airways
25 May - 31 May Icelandair
23 May - 31 May Icelandair
24 May - 30 May Icelandair
25 May - 30 May Icelandair

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

Skyscanner

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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