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

Return flights

04 Dec - 10 Dec	Ryanair
07 Dec - 14 Dec	Lufthansa
04 Dec - 10 Dec	Turkish Airlines	direct
07 Dec - 14 Dec	Turkish Airlines	direct
31 Dec - 07 Jan	Lufthansa
22 Dec - 26 Dec	Lufthansa
29 Dec - 04 Jan	Ryanair
20 Dec - 30 Dec	Lufthansa
20 Dec - 29 Dec	Lufthansa
27 Dec - 04 Jan	Lufthansa
23 Dec - 31 Dec	KLM
31 Dec - 07 Jan	Turkish Airlines	direct
21 Dec - 03 Jan	Luxair
26 Dec - 02 Jan	Lufthansa
26 Dec - 04 Jan	Lufthansa
22 Dec - 31 Dec	KLM
29 Dec - 03 Jan	KLM
27 Dec - 03 Jan	Ryanair
22 Dec - 26 Dec	Turkish Airlines	direct
20 Dec - 03 Jan	Luxair

Also check the deals for one-way flights from Luxemburg 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 Luxemburg to Istanbul in December from 182€

Return flights