Cheapest return flights from Washington to Keflavik in July from $668

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

Return flights

28 Jul - 04 Aug United
28 Jul - 07 Aug Air Canada
27 Jul - 03 Aug Air Canada
06 Jul - 14 Jul United
07 Jul - 15 Jul United
10 Jul - 20 Jul Air Canada
05 Jul - 13 Jul United
26 Jul - 05 Aug Air Canada
29 Jul - 05 Aug Air Canada
24 Jul - 31 Jul United
30 Jul - 06 Aug Air France
01 Jul - 09 Jul United
01 Jul - 08 Jul United
02 Jul - 08 Jul United
26 Jul - 02 Aug United
04 Jul - 12 Jul Air France
12 Jul - 16 Jul Icelandair

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

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