Cheapest return flights from Washington to Keflavik in July from 600€

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

Return flights

30 Jul - 06 Aug Air Canada
30 Jul - 05 Aug Air Canada
29 Jul - 05 Aug Air Canada
31 Jul - 04 Aug United
31 Jul - 03 Aug United
30 Jul - 04 Aug Icelandair
28 Jul - 01 Aug Icelandair
29 Jul - 31 Jul Icelandair
30 Jul - 02 Aug United

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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