Cheapest return flights from Washington to Keflavik in August from 434€

AirHint found the following cheapest return flights from Washington (DCA) to Keflavik (KEF) in August 2026 (see full year).

Return flights

14 Aug - 21 Aug Air Canada
17 Aug - 24 Aug Air Canada
13 Aug - 20 Aug Air Canada
16 Aug - 23 Aug Air Canada
19 Aug - 26 Aug Air Canada
18 Aug - 25 Aug Air Canada
15 Aug - 22 Aug Air Canada
12 Aug - 19 Aug Air Canada
24 Aug - 31 Aug Air Canada
20 Aug - 27 Aug Air Canada
28 Aug - 14 Sep Air Canada

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

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