Cheapest return flights from Chicago to Keflavik in March from 338€

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

Return flights

01 Mar - 12 Mar Icelandair direct
04 Mar - 09 Mar Icelandair direct
05 Mar - 09 Mar Icelandair direct
05 Mar - 10 Mar Icelandair direct
06 Mar - 09 Mar Icelandair direct
19 Mar - 25 Mar Icelandair direct
27 Mar - 31 Mar Icelandair direct
08 Mar - 14 Mar Frontier Airlines
07 Mar - 21 Mar Frontier Airlines

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

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