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

Return flights

15 Sep - 25 Sep	Kenya Airways
23 Sep - 28 Sep	SWISS
25 Sep - 17 Oct	SWISS
25 Sep - 04 Oct	KLM
08 Sep - 14 Sep	British Airways
19 Sep - 04 Oct	KLM
07 Sep - 14 Sep	British Airways
12 Sep - 04 Oct	KLM
11 Sep - 20 Sep	KLM
19 Sep - 05 Oct	British Airways
29 Sep - 11 Oct	KLM
26 Sep - 04 Oct	KLM
16 Sep - 23 Sep	British Airways
11 Sep - 25 Sep	British Airways
12 Sep - 20 Sep	KLM
17 Sep - 25 Sep	Condor
03 Sep - 11 Sep	Condor

Also check the deals for one-way flights from London 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 London to Plaisance in September from $1193

Return flights