Cheapest return flights from Washington to Keflavik in August from 272€

AirHint found the following cheapest return flights from Washington (IAD) to Keflavik (KEF) in August 2025 (see full year).

Return flights

22 Aug - 28 Aug Icelandair direct
22 Aug - 29 Aug Icelandair direct
23 Aug - 29 Aug Icelandair direct
24 Aug - 30 Aug Icelandair direct
19 Aug - 26 Aug Icelandair direct
20 Aug - 27 Aug Icelandair direct
20 Aug - 13 Sep Icelandair direct
24 Aug - 29 Aug Icelandair direct
26 Aug - 02 Sep Icelandair direct
25 Aug - 02 Sep Icelandair direct
30 Aug - 06 Sep Icelandair direct
27 Aug - 20 Sep Icelandair direct
20 Aug - 24 Aug Air Canada
20 Aug - 23 Aug Air Canada
16 Aug - 20 Aug Icelandair direct
29 Aug - 04 Sep SWISS
29 Aug - 06 Sep SWISS
29 Aug - 13 Sep United
28 Aug - 01 Sep United
29 Aug - 04 Sep Icelandair direct

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

Skyscanner

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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