Cheapest return flights from Istanbul to Keflavik in January from $239

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

Return flights

12 Jan - 15 Jan Wizz Air UK
15 Jan - 19 Jan Pegasus Airlines
19 Jan - 26 Jan Pegasus Airlines
19 Jan - 29 Jan Pegasus Airlines
15 Jan - 18 Jan Pegasus Airlines
16 Jan - 20 Jan Pegasus Airlines
08 Jan - 11 Jan Wizz Air UK
05 Jan - 08 Jan Air Serbia
12 Jan - 15 Jan Icelandair direct
19 Jan - 29 Jan Icelandair direct

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

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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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