Cheapest return flights from Chicago to Keflavik in October from 470€

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

Return flights

01 Oct - 08 Oct Finnair
30 Oct - 06 Nov Icelandair direct
10 Oct - 18 Oct Finnair
14 Oct - 19 Oct Icelandair direct
16 Oct - 21 Oct Icelandair direct
10 Oct - 18 Oct Icelandair direct
01 Oct - 05 Oct Scandinavian Airlines
14 Oct - 18 Oct Lufthansa
05 Oct - 17 Oct Air Canada
05 Oct - 17 Oct Icelandair direct
01 Oct - 05 Oct Icelandair direct

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

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