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

Return flights

01 Dec - 08 Dec	Ryanair
01 Dec - 04 Dec	Ryanair
01 Dec - 07 Dec	Ryanair
04 Dec - 07 Dec	Ryanair
05 Dec - 08 Dec	Ryanair
02 Dec - 07 Dec	Ryanair
13 Dec - 20 Dec	Lufthansa
05 Dec - 12 Dec	Ryanair
05 Dec - 08 Dec	Turkish Airlines	direct
02 Dec - 10 Dec	Ryanair
29 Dec - 02 Jan	Lufthansa
19 Dec - 02 Jan	easyJet
31 Dec - 04 Jan	KLM
30 Dec - 03 Jan	KLM
22 Dec - 06 Jan	Lufthansa
19 Dec - 03 Jan	easyJet
20 Dec - 02 Jan	easyJet
21 Dec - 02 Jan	Ryanair
20 Dec - 01 Jan	Ryanair
20 Dec - 03 Jan	Ryanair

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 $180

Return flights