Cheapest return flights from Washington to Keflavik in July from 535€

Best time to book flights for Washington (DCA) to Keflavik (KEF) flights at AirHint

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

Return flights

22 Jul - 29 Jul Air Canada
08 Jul - 15 Jul Air Canada
15 Jul - 22 Jul Air Canada
31 Jul - 07 Aug Air Canada
28 Jul - 04 Aug Air Canada
24 Jul - 31 Jul Air Canada
26 Jul - 02 Aug Air Canada
07 Jul - 14 Jul Air Canada
04 Jul - 11 Jul Air Canada
21 Jul - 28 Jul Air Canada
05 Jul - 12 Jul Air Canada
01 Jul - 08 Jul Icelandair
09 Jul - 16 Jul Air Canada
25 Jul - 01 Aug jetBlue
27 Jul - 03 Aug jetBlue
24 Jul - 03 Aug jetBlue

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

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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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