Cheapest return flights from Washington to Keflavik in July from $481

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

Return flights

14 Jul - 22 Jul Icelandair direct
26 Jul - 30 Jul Icelandair direct
26 Jul - 31 Jul Icelandair direct
19 Jul - 23 Jul Icelandair direct
13 Jul - 17 Jul Icelandair direct
14 Jul - 21 Jul Icelandair direct
15 Jul - 22 Jul Icelandair direct
10 Jul - 17 Jul Icelandair direct
23 Jul - 30 Jul Icelandair direct
17 Jul - 22 Jul Icelandair direct
25 Jul - 01 Aug Air Canada
24 Jul - 02 Aug Air Canada
28 Jul - 10 Aug Air Canada
25 Jul - 03 Aug Austrian Airlines
28 Jul - 10 Aug Icelandair direct
25 Jul - 01 Aug Icelandair direct
24 Jul - 02 Aug Icelandair direct
25 Jul - 03 Aug 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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