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

Return flights

05 Dec - 08 Dec	Luxair	direct
12 Dec - 15 Dec	Luxair	direct
15 Dec - 29 Dec	Ryanair
26 Dec - 31 Dec	Lufthansa
10 Dec - 12 Dec	easyJet
14 Dec - 28 Dec	Lufthansa
17 Dec - 27 Dec	Lufthansa
29 Dec - 05 Jan	Lufthansa
21 Dec - 30 Dec	Lufthansa
15 Dec - 29 Dec	Luxair	direct
26 Dec - 02 Jan	Ryanair
19 Dec - 22 Dec	Lufthansa
29 Dec - 05 Jan	Luxair	direct
19 Dec - 05 Jan	Lufthansa
22 Dec - 04 Jan	Lufthansa
26 Dec - 03 Jan	Ryanair
19 Dec - 02 Jan	Lufthansa
23 Dec - 04 Jan	Austrian Airlines
20 Dec - 04 Jan	Austrian Airlines
19 Dec - 03 Jan	Lufthansa

Also check the deals for one-way flights from Luxemburg to Bucharest 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 Bucharest in December from $128

Return flights