Cheapest return flights from Chicago to Keflavik in February from $796

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

Return flights

20 Feb - 27 Feb Frontier Airlines
25 Feb - 04 Mar Porter Airlines (Canada) Ltd
23 Feb - 02 Mar Porter Airlines (Canada) Ltd
21 Feb - 28 Feb Southwest Airlines
06 Feb - 09 Feb Southwest Airlines
13 Feb - 20 Feb Southwest Airlines
15 Feb - 22 Feb Southwest Airlines
22 Feb - 01 Mar Southwest Airlines
26 Feb - 05 Mar Frontier Airlines
10 Feb - 17 Feb Southwest Airlines
19 Feb - 26 Feb Southwest Airlines
24 Feb - 03 Mar Southwest Airlines
05 Feb - 09 Feb Southwest Airlines
11 Feb - 18 Feb Southwest Airlines
18 Feb - 25 Feb Southwest Airlines
27 Feb - 06 Mar Southwest Airlines

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

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