Cheapest return flights from Chicago to Keflavik in December from 297€

AirHint found the following cheapest return flights from Chicago (ORD) to Keflavik (KEF) in December 2025 (see full year).

Return flights

01 Dec - 06 Dec Icelandair direct
05 Dec - 10 Dec Icelandair direct
08 Dec - 22 Dec Icelandair direct
14 Dec - 21 Dec Icelandair direct
15 Dec - 22 Dec Icelandair direct
22 Dec - 28 Dec Icelandair direct
23 Dec - 02 Jan Icelandair direct

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

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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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