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

Return flights

29 Sep - 20 Oct	Lufthansa
19 Sep - 03 Oct	Ryanair
28 Sep - 20 Oct	KLM
10 Sep - 23 Sep	Ryanair
10 Sep - 22 Sep	Ryanair
28 Sep - 24 Oct	KLM
19 Sep - 31 Oct	Ryanair
09 Sep - 24 Sep	British Airways
20 Sep - 09 Oct	Ryanair
16 Sep - 29 Sep	Lufthansa
13 Sep - 28 Sep	Ryanair
17 Sep - 29 Oct	Turkish Airlines
15 Sep - 26 Sep	Lufthansa
27 Sep - 24 Oct	SWISS
05 Sep - 19 Sep	Ryanair
07 Sep - 15 Sep	SWISS
19 Sep - 27 Sep	Ryanair
06 Sep - 19 Sep	Ryanair
26 Sep - 20 Oct	KLM
29 Sep - 31 Oct	SWISS

Also check the deals for one-way flights from Luxemburg to Plaisance 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 Luxemburg to Plaisance in September from 750€

Return flights