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

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

Return flights

12 Oct - 17 Oct Icelandair direct
06 Oct - 15 Oct Icelandair direct
08 Oct - 15 Oct Icelandair direct
08 Oct - 17 Oct Icelandair direct
19 Oct - 23 Oct Icelandair direct
21 Oct - 28 Oct Icelandair direct
16 Oct - 23 Oct Icelandair direct
29 Oct - 05 Nov Icelandair direct
28 Oct - 04 Nov Icelandair direct
19 Oct - 08 Nov Icelandair direct
29 Oct - 03 Nov Icelandair direct
16 Oct - 20 Oct Icelandair direct
14 Oct - 22 Oct Spirit Airlines
17 Oct - 19 Oct Spirit Airlines
21 Oct - 01 Nov Icelandair direct

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

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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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