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

Return flights

29 Aug - 01 Sep	SWISS
28 Aug - 02 Sep	SWISS
22 Aug - 01 Sep	SWISS
08 Aug - 18 Aug	Lufthansa
07 Aug - 11 Aug	Lufthansa
21 Aug - 31 Aug	Lufthansa
08 Aug - 10 Aug	Lufthansa
22 Aug - 31 Aug	SWISS
01 Aug - 08 Aug	SWISS
11 Aug - 16 Aug	Lufthansa
09 Aug - 10 Aug	Lufthansa
15 Aug - 18 Aug	Ryanair
04 Aug - 08 Aug	Austrian Airlines
29 Aug - 01 Sep	Luxair	direct
22 Aug - 01 Sep	Luxair	direct

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

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 August from 140€

Return flights