Cheapest return flights from Chicago to Keflavik in March from 320€

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

Return flights

03 Mar - 10 Mar Icelandair direct
17 Mar - 25 Mar Icelandair direct
17 Mar - 24 Mar Icelandair direct
03 Mar - 17 Mar Icelandair direct
24 Mar - 29 Apr Frontier Airlines
25 Mar - 30 Mar Frontier Airlines
24 Mar - 29 Apr Icelandair direct
05 Mar - 10 Mar Icelandair direct
05 Mar - 11 Mar Icelandair direct
29 Mar - 05 Apr Icelandair direct
27 Mar - 31 Mar Icelandair direct
05 Mar - 13 Mar Frontier Airlines
27 Mar - 30 Mar Frontier Airlines
27 Mar - 03 Apr jetBlue
27 Mar - 03 Apr Icelandair direct
28 Mar - 04 Apr Icelandair
27 Mar - 05 Apr jetBlue
28 Mar - 04 Apr Icelandair direct

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

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