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

Return flights

16 Sep - 24 Sep	Wizz Air Malta
25 Sep - 30 Sep	Wizz Air Malta
29 Sep - 06 Oct	Wizz Air Malta
29 Sep - 02 Oct	Wizz Air Malta
17 Sep - 19 Sep	Wizz Air Malta
26 Sep - 29 Sep	Wizz Air Malta
29 Sep - 03 Oct	Wizz Air Malta
19 Sep - 22 Sep	Ryanair
28 Sep - 04 Oct	Ryanair
25 Sep - 28 Sep	Wizz Air Malta
28 Sep - 03 Oct	Ryanair
28 Sep - 05 Oct	Ryanair
05 Sep - 12 Sep	SWISS
12 Sep - 19 Sep	Wizz Air Malta
03 Sep - 10 Sep	Lufthansa
05 Sep - 07 Sep	LOT
29 Sep - 06 Oct	Luxair	direct
29 Sep - 03 Oct	Luxair	direct

Also check the deals for one-way flights from Bucharest to Luxemburg in September.

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 Bucharest to Luxemburg in September from $119

Return flights