Cheapest return flights from Washington to Keflavik in August from 489€

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

21 Aug - 28 Aug Air Canada
22 Aug - 29 Aug Air Canada
14 Aug - 21 Aug Air Canada
19 Aug - 26 Aug Air Canada
20 Aug - 27 Aug Air Canada
07 Aug - 14 Aug Air Canada
15 Aug - 22 Aug Air Canada
18 Aug - 25 Aug Air Canada
25 Aug - 01 Sep Air Canada
24 Aug - 31 Aug Air Canada
16 Aug - 23 Aug Air Canada
31 Aug - 07 Sep Air Canada

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

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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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