Cheapest return flights from Washington to Keflavik in October from 263€

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

Return flights

23 Oct - 27 Oct Icelandair direct
24 Oct - 27 Oct Icelandair direct
24 Oct - 02 Nov Icelandair direct
14 Oct - 22 Oct Icelandair direct
03 Oct - 05 Oct Icelandair direct
08 Oct - 15 Oct Icelandair direct
08 Oct - 16 Oct Icelandair direct
01 Oct - 25 Oct Icelandair direct
13 Oct - 08 Nov Icelandair direct
25 Oct - 02 Nov Icelandair direct
24 Oct - 30 Oct Icelandair direct
31 Oct - 02 Nov Icelandair direct
03 Oct - 06 Oct Icelandair direct
01 Oct - 07 Oct Icelandair direct
31 Oct - 22 Nov Icelandair direct

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

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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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