Cheapest return flights from Keflavik to Istanbul in December from 200€

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

Return flights

11 Dec - 17 Dec LOT
07 Dec - 15 Dec LOT
06 Dec - 13 Dec easyJet
01 Dec - 07 Dec easyJet
10 Dec - 17 Dec easyJet
01 Dec - 04 Dec easyJet
14 Dec - 19 Dec LOT
23 Dec - 31 Dec LOT
17 Dec - 22 Dec Wizz Air
22 Dec - 29 Dec Wizz Air Malta
25 Dec - 02 Jan LOT
26 Dec - 04 Jan easyJet
27 Dec - 04 Jan Icelandair

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

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