Cheapest return flights from Washington to Keflavik in June from $657

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 June 2025 (see full year).

Return flights

09 Jun - 17 Jun jetBlue
18 Jun - 16 Jul Air Canada
16 Jun - 16 Jul United
16 Jun - 21 Jul Icelandair
06 Jun - 09 Jun Air France
15 Jun - 01 Jul United
04 Jun - 16 Jun Icelandair
16 Jun - 14 Jul Icelandair
06 Jun - 12 Jun jetBlue
26 Jun - 04 Jul Air Canada
26 Jun - 03 Jul Air Canada
01 Jun - 07 Jun jetBlue
26 Jun - 02 Jul Icelandair
01 Jun - 15 Jun jetBlue
30 Jun - 02 Jul jetBlue
01 Jun - 06 Jun Frontier Airlines
28 Jun - 02 Jul jetBlue
13 Jun - 23 Jun Air Canada
20 Jun - 28 Jun Air Canada
19 Jun - 24 Jun Air Canada

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

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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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