Cheapest return flights from Washington to Keflavik in August from 445€

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

Return flights

20 Aug - 27 Aug Icelandair direct
10 Aug - 18 Aug SWISS
05 Aug - 15 Aug Scandinavian Airlines
06 Aug - 16 Aug Scandinavian Airlines
10 Aug - 18 Aug Icelandair direct
07 Aug - 16 Aug Lufthansa
08 Aug - 16 Aug SWISS
13 Aug - 16 Aug Icelandair
07 Aug - 15 Aug Scandinavian Airlines
05 Aug - 12 Aug Icelandair direct

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

Powered by

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Feel free to contact us with any feedback or request another flight research.