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

Return flights

31 Aug - 17 Sep	Ryanair	direct
31 Aug - 11 Sep	Ryanair	direct
31 Aug - 18 Sep	Ryanair	direct
31 Aug - 04 Sep	Vueling Airlines
31 Aug - 10 Sep	Ryanair	direct
31 Aug - 16 Sep	Ryanair	direct
29 Aug - 17 Sep	Ryanair	direct
29 Aug - 11 Sep	Ryanair	direct
29 Aug - 18 Sep	Ryanair	direct
31 Aug - 04 Sep	Ryanair	direct
26 Aug - 27 Aug	Ryanair
27 Aug - 30 Aug	Lufthansa
28 Aug - 30 Aug	KLM
28 Aug - 31 Aug	KLM
29 Aug - 31 Aug	KLM
27 Aug - 29 Aug	Lufthansa
26 Aug - 28 Aug	Air Europa
27 Aug - 31 Aug	KLM
25 Aug - 27 Aug	Air Europa
24 Aug - 27 Aug	Ryanair

Also check the deals for one-way flights from Barcelona 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 Barcelona to Luxemburg in August from $164

Return flights