Cheapest return flights from Washington to Keflavik in June from $542

Best time to book flights for Washington (IAD) to Keflavik (KEF) flights at AirHint

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

Return flights

08 Jun - 18 Jun Icelandair direct
02 Jun - 12 Jun Icelandair direct
01 Jun - 07 Jun Icelandair direct
12 Jun - 23 Jun Icelandair direct
25 Jun - 02 Jul Icelandair direct
24 Jun - 01 Jul Icelandair direct
22 Jun - 29 Jun Icelandair direct
13 Jun - 22 Jun Icelandair direct
23 Jun - 27 Jun Icelandair direct
30 Jun - 07 Jul Icelandair direct
27 Jun - 04 Jul Icelandair direct
28 Jun - 05 Jul Icelandair direct
12 Jun - 14 Jun Icelandair direct

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

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik