Cheapest return flights from Washington to Keflavik in January from $505

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

Return flights

17 Jan - 24 Jan Scandinavian Airlines
13 Jan - 19 Jan Scandinavian Airlines
15 Jan - 19 Jan Scandinavian Airlines
15 Jan - 20 Jan Scandinavian Airlines
07 Jan - 13 Jan jetBlue
06 Jan - 14 Jan jetBlue
06 Jan - 10 Jan Scandinavian Airlines
07 Jan - 11 Jan jetBlue
05 Jan - 11 Jan jetBlue
05 Jan - 10 Jan jetBlue

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

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