Cheapest return flights from Washington to Keflavik in May from 521€

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

27 May - 03 Jun jetBlue
01 May - 08 May Virgin Atlantic
01 May - 05 May Air France
07 May - 14 May jetBlue
06 May - 13 May Air France
08 May - 15 May Air France
04 May - 11 May Air France
05 May - 12 May Air France
02 May - 09 May British Airways
20 May - 27 May jetBlue
21 May - 28 May jetBlue
28 May - 04 Jun jetBlue
31 May - 07 Jun Air Canada
25 May - 06 Jun Air France
26 May - 02 Jun Air France
25 May - 01 Jun Icelandair
28 May - 01 Jun 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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