Cheapest return flights from Istanbul to Keflavik in December from 147€

AirHint found the following cheapest return flights from Istanbul (IST) to Keflavik (KEF) in December 2025 (see full year).

Return flights

05 Dec - 09 Dec easyJet
05 Dec - 07 Dec easyJet
01 Dec - 06 Dec Wizz Air UK
05 Dec - 10 Dec Wizz Air UK
22 Dec - 28 Dec easyJet
08 Dec - 14 Dec Wizz Air UK
10 Dec - 13 Dec Wizz Air UK
11 Dec - 14 Dec Wizz Air UK
19 Dec - 27 Dec Wizz Air
20 Dec - 28 Dec Wizz Air UK
31 Dec - 04 Jan Wizz Air
29 Dec - 01 Jan Wizz Air UK
29 Dec - 01 Jan Icelandair direct

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

Skyscanner

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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