Cheapest return flights from Chicago to Keflavik in August from 634€

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

Return flights

31 Aug - 07 Sep KLM
15 Aug - 29 Aug Delta
29 Aug - 05 Sep KLM
30 Aug - 06 Sep Virgin Atlantic
03 Aug - 10 Aug Delta
24 Aug - 31 Aug Southwest Airlines
04 Aug - 11 Aug Delta
01 Aug - 08 Aug KLM
02 Aug - 09 Aug KLM
09 Aug - 10 Aug Porter Airlines (Canada) Ltd
10 Aug - 17 Aug Porter Airlines (Canada) Ltd
05 Aug - 12 Aug KLM
06 Aug - 13 Aug Porter Airlines (Canada) Ltd

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

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