Cheapest return flights from Chicago to Keflavik in March from $603

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
10 Mar - 17 Mar Icelandair direct
16 Mar - 23 Mar Icelandair direct
22 Mar - 29 Mar Scandinavian Airlines
29 Mar - 04 Apr Icelandair direct
01 Mar - 08 Mar Scandinavian Airlines
22 Mar - 29 Mar Icelandair direct
25 Mar - 01 Apr Icelandair direct
28 Mar - 04 Apr Icelandair direct
04 Mar - 11 Mar Icelandair direct
07 Mar - 14 Mar Icelandair direct
19 Mar - 26 Mar Icelandair direct
01 Mar - 08 Mar Icelandair direct
13 Mar - 20 Mar Scandinavian Airlines

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

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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