Cheapest return flights from Washington to Keflavik in July from $594

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

Return flights

14 Jul - 21 Jul Icelandair direct
13 Jul - 21 Jul Icelandair direct
14 Jul - 22 Jul Icelandair direct
07 Jul - 15 Jul Icelandair direct
12 Jul - 19 Jul Icelandair direct
06 Jul - 14 Jul Icelandair direct
15 Jul - 23 Jul Icelandair direct
07 Jul - 14 Jul Icelandair direct
05 Jul - 12 Jul Icelandair direct
08 Jul - 16 Jul Icelandair direct
19 Jul - 08 Aug Icelandair direct

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

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