Cheapest return flights from Washington to Keflavik in August from 536€

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 August 2025 (see full year).

Return flights

14 Aug - 21 Aug Air Canada
10 Aug - 16 Aug Icelandair
09 Aug - 15 Aug Icelandair
01 Aug - 09 Aug Icelandair

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

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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