Cheapest return flights from Chicago to Keflavik in October from 343€

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

Return flights

08 Oct - 22 Oct Icelandair direct
01 Oct - 17 Oct Icelandair direct
19 Oct - 23 Oct Icelandair direct
28 Oct - 18 Nov Icelandair direct
29 Oct - 19 Nov Icelandair direct
28 Oct - 19 Nov Icelandair direct
29 Oct - 18 Nov Icelandair direct
24 Oct - 11 Nov Icelandair direct
28 Oct - 17 Nov Icelandair direct
29 Oct - 11 Nov Icelandair direct
29 Oct - 17 Nov Icelandair direct
28 Oct - 11 Nov Icelandair direct
01 Oct - 28 Oct Icelandair direct
08 Oct - 28 Oct Icelandair direct
15 Oct - 20 Oct Icelandair direct
07 Oct - 21 Oct Icelandair direct
14 Oct - 22 Oct Icelandair direct
14 Oct - 04 Nov Icelandair direct
10 Oct - 19 Oct Icelandair direct
01 Oct - 08 Oct 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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