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

Return flights

27 Sep - 17 Oct	Ryanair
26 Sep - 12 Oct	Ryanair
26 Sep - 05 Oct	Ryanair
27 Sep - 10 Oct	Ryanair
09 Sep - 24 Sep	Discover Airlines	direct
23 Sep - 06 Oct	Lufthansa	direct
26 Sep - 06 Oct	easyJet
23 Sep - 01 Oct	SWISS
26 Sep - 29 Sep	Ryanair
09 Sep - 22 Sep	Discover Airlines	direct
26 Sep - 10 Oct	easyJet
23 Sep - 15 Oct	SWISS
26 Sep - 11 Oct	Ryanair
22 Sep - 28 Sep	SWISS
20 Sep - 28 Sep	Ryanair
23 Sep - 29 Sep	SWISS
12 Sep - 22 Sep	Ryanair
20 Sep - 27 Sep	Lufthansa
10 Sep - 24 Sep	Air France
19 Sep - 26 Sep	easyJet

Also check the deals for one-way flights from Frankfurt 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 Frankfurt to Plaisance in September from $717

Return flights