Cheapest return flights from Chicago to Keflavik in March from 452€

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

Return flights

31 Mar - 07 Apr Icelandair direct
25 Mar - 31 Mar Frontier Airlines
04 Mar - 10 Mar Spirit Airlines
29 Mar - 11 Apr Icelandair direct
04 Mar - 10 Mar Icelandair direct
04 Mar - 09 Mar Icelandair direct
24 Mar - 29 Mar Frontier Airlines
20 Mar - 25 Mar Scandinavian Airlines
23 Mar - 28 Mar Frontier Airlines
22 Mar - 29 Mar Spirit Airlines
06 Mar - 10 Mar Spirit Airlines
06 Mar - 09 Mar Frontier Airlines
27 Mar - 05 Apr Spirit Airlines

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

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