Cheapest return flights from Chicago to Keflavik in August from $624

AirHint found the following cheapest return flights from Chicago (ORD) to Keflavik (KEF) in August 2026 (see full year).

Return flights

10 Aug - 05 Sep Lufthansa
10 Aug - 05 Sep Icelandair direct
06 Aug - 11 Aug jetBlue
01 Aug - 15 Aug Icelandair direct
06 Aug - 11 Aug Icelandair direct
08 Aug - 14 Aug Lufthansa
10 Aug - 14 Aug Scandinavian Airlines
10 Aug - 14 Aug Icelandair direct

Also check the deals for one-way flights from Chicago to Keflavik in August.

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