Cheapest return flights from Chicago to Keflavik in March from 519€

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

Return flights

30 Mar - 10 Apr jetBlue
29 Mar - 11 Apr jetBlue
27 Mar - 05 Apr jetBlue
30 Mar - 05 Apr jetBlue
29 Mar - 05 Apr jetBlue
29 Mar - 04 Apr jetBlue
29 Mar - 02 Apr Icelandair direct
26 Mar - 02 Apr Frontier Airlines
30 Mar - 05 Apr Icelandair direct
28 Mar - 31 Mar Spirit Airlines
25 Mar - 29 Mar Lufthansa
29 Mar - 05 Apr Icelandair direct
27 Mar - 29 Mar Icelandair
27 Mar - 29 Mar Icelandair direct
25 Mar - 29 Mar Icelandair direct

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

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