AirHint found the following cheapest return flights from Ljubljana (LJU) to Istanbul (SAW) in December 2025 (see full year).

Return flights

01 Dec - 05 Dec	easyJet
29 Dec - 02 Jan	Air Serbia
11 Dec - 14 Dec	easyJet
29 Dec - 04 Jan	Air Serbia
26 Dec - 31 Dec	Aegean Airlines
31 Dec - 04 Jan	Air Serbia
26 Dec - 30 Dec	Aegean Airlines
25 Dec - 26 Dec	KLM
23 Dec - 05 Jan	Lufthansa
20 Dec - 27 Dec	flydubai
14 Dec - 21 Dec	flydubai
20 Dec - 23 Dec	flydubai
19 Dec - 23 Dec	flydubai
26 Dec - 01 Jan	Air France
26 Dec - 05 Jan	flydubai
26 Dec - 06 Jan	flydubai
27 Dec - 06 Jan	flydubai
18 Dec - 05 Jan	flydubai
20 Dec - 04 Jan	flydubai

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

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 Ljubljana to Istanbul in December from $301

Return flights