Cheapest return flights from Washington to Keflavik in October from 343€

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

Return flights

27 Oct - 31 Oct Icelandair direct
26 Oct - 30 Oct Icelandair direct
24 Oct - 31 Oct Icelandair direct
27 Oct - 22 Nov Icelandair direct
26 Oct - 15 Nov Icelandair direct
24 Oct - 15 Nov Icelandair direct
27 Oct - 03 Nov Icelandair direct
25 Oct - 15 Nov SWISS
23 Oct - 27 Oct Lufthansa
23 Oct - 15 Nov Lufthansa
23 Oct - 15 Nov Icelandair direct
23 Oct - 29 Oct Icelandair direct
25 Oct - 15 Nov Icelandair direct
24 Oct - 26 Oct Lufthansa
26 Oct - 29 Oct Icelandair direct
23 Oct - 28 Oct Lufthansa
24 Oct - 26 Oct Icelandair direct
31 Oct - 22 Nov Lufthansa
31 Oct - 22 Nov Icelandair direct
23 Oct - 28 Oct Icelandair direct

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

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.