Cheapest return flights from Washington to Keflavik in August from 446€

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

Return flights

17 Aug - 24 Aug Air Canada
18 Aug - 25 Aug Air Canada
02 Aug - 09 Aug Air Canada
03 Aug - 10 Aug Air Canada
23 Aug - 27 Aug Air Canada
25 Aug - 29 Aug United
05 Aug - 12 Aug Air Canada
01 Aug - 08 Aug Air Canada
04 Aug - 11 Aug jetBlue
10 Aug - 17 Aug Scandinavian Airlines

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

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