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

Return flights

25 Jan - 01 Feb	Icelandair	direct
27 Jan - 03 Feb	Icelandair	direct
30 Jan - 06 Feb	Icelandair	direct
12 Jan - 19 Jan	Icelandair	direct
15 Jan - 22 Jan	Icelandair	direct
18 Jan - 25 Jan	Icelandair	direct
24 Jan - 31 Jan	Icelandair	direct
09 Jan - 16 Jan	Icelandair	direct
21 Jan - 28 Jan	Icelandair	direct
08 Jan - 15 Jan	Icelandair	direct
10 Jan - 17 Jan	Icelandair	direct
13 Jan - 20 Jan	Icelandair	direct
14 Jan - 21 Jan	Icelandair	direct

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

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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Cheapest return flights from Chicago to Keflavik in January from $334

Return flights