Cheapest return flights from Washington to Keflavik in July from $574

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 July 2025 (see full year).

Return flights

26 Jul - 06 Aug Icelandair direct
23 Jul - 30 Jul Icelandair direct
05 Jul - 15 Jul Icelandair direct
25 Jul - 30 Jul Icelandair direct
03 Jul - 19 Jul Icelandair direct
24 Jul - 05 Aug Icelandair direct
31 Jul - 05 Aug Icelandair direct
02 Jul - 06 Jul Icelandair direct
16 Jul - 21 Jul Icelandair direct
14 Jul - 17 Jul Icelandair direct

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

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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