Cheapest return flights from Chicago to Keflavik in January from $839

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

Return flights

28 Jan - 01 Feb Southwest Airlines
20 Jan - 28 Jan Southwest Airlines
20 Jan - 27 Jan Southwest Airlines
29 Jan - 01 Feb Southwest Airlines
19 Jan - 27 Jan Frontier Airlines
13 Jan - 18 Jan Frontier Airlines
18 Jan - 09 Feb Southwest Airlines
18 Jan - 02 Feb Southwest Airlines
19 Jan - 23 Jan Porter Airlines (Canada) Ltd
13 Jan - 21 Jan Porter Airlines (Canada) Ltd
15 Jan - 19 Jan Frontier Airlines
27 Jan - 02 Feb Porter Airlines (Canada) Ltd
18 Jan - 24 Jan Porter Airlines (Canada) Ltd
15 Jan - 20 Jan Porter Airlines (Canada) Ltd
19 Jan - 21 Jan Porter Airlines (Canada) Ltd

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

Powered by

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Feel free to contact us with any feedback or request another flight research.