Cheapest return flights from Chicago to Keflavik in February from $872

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

Return flights

19 Feb - 23 Feb Southwest Airlines
06 Feb - 09 Feb Southwest Airlines
06 Feb - 15 Feb Frontier Airlines
20 Feb - 27 Feb Southwest Airlines
16 Feb - 23 Feb Southwest Airlines
20 Feb - 23 Feb Southwest Airlines
18 Feb - 22 Feb Southwest Airlines
08 Feb - 22 Feb Southwest Airlines
26 Feb - 04 Mar Porter Airlines (Canada) Ltd
19 Feb - 25 Feb Porter Airlines (Canada) Ltd
05 Feb - 11 Feb Southwest Airlines
20 Feb - 10 Mar Porter Airlines (Canada) Ltd

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

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