Cheapest return flights from Washington to Keflavik in July from $701

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

Return flights

07 Jul - 28 Jul United
31 Jul - 07 Aug Air Canada
20 Jul - 26 Jul United
03 Jul - 05 Jul United
14 Jul - 25 Jul Lufthansa
21 Jul - 29 Jul Icelandair
15 Jul - 29 Jul Icelandair
12 Jul - 18 Jul Icelandair
15 Jul - 30 Jul Icelandair
11 Jul - 20 Jul Icelandair

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

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