Cheapest return flights from Chicago to Keflavik in March from $376

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

Return flights

04 Mar - 09 Mar Icelandair direct
11 Mar - 17 Mar Icelandair direct
17 Mar - 25 Mar Icelandair direct
06 Mar - 12 Mar Icelandair direct
07 Mar - 12 Mar Icelandair direct
06 Mar - 09 Mar Icelandair direct
31 Mar - 11 Apr Icelandair direct
01 Mar - 08 Mar Icelandair direct
01 Mar - 07 Mar Icelandair direct
06 Mar - 11 Mar Icelandair direct
12 Mar - 19 Mar Frontier Airlines
29 Mar - 04 Apr Icelandair direct
27 Mar - 05 Apr jetBlue
28 Mar - 04 Apr Lufthansa
25 Mar - 04 Apr Scandinavian Airlines
28 Mar - 04 Apr Icelandair direct
25 Mar - 04 Apr Icelandair direct

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

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