Cheapest return flights from Chicago to Keflavik in July from $904

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

Return flights

28 Jul - 06 Aug KLM
27 Jul - 03 Aug KLM
28 Jul - 04 Aug KLM
01 Jul - 08 Jul Southwest Airlines
25 Jul - 01 Aug Air France
26 Jul - 02 Aug Air France
02 Jul - 09 Jul Southwest Airlines
23 Jul - 30 Jul Southwest Airlines
21 Jul - 04 Aug Delta
22 Jul - 29 Jul Southwest Airlines
24 Jul - 31 Jul Southwest Airlines

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

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