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

Return flights

22 Dec - 25 Dec	Lufthansa
22 Dec - 28 Dec	Lufthansa
19 Dec - 22 Dec	Lufthansa
30 Dec - 05 Jan	Lufthansa
20 Dec - 23 Dec	Air France
21 Dec - 24 Dec	Lufthansa
29 Dec - 04 Jan	Lufthansa
22 Dec - 25 Dec	Turkish Airlines	direct
24 Dec - 28 Dec	Ryanair
29 Dec - 03 Jan	Air France
19 Dec - 22 Dec	Turkish Airlines	direct
30 Dec - 05 Jan	Turkish Airlines	direct
25 Dec - 29 Dec	Luxair	direct
24 Dec - 28 Dec	Turkish Airlines	direct
29 Dec - 03 Jan	Turkish Airlines	direct
29 Dec - 04 Jan	Turkish Airlines	direct

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 265€

Return flights