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

Return flights

26 Sep - 03 Oct	Saudia
23 Sep - 03 Oct	Saudia
23 Sep - 28 Sep	Saudia
21 Sep - 28 Sep	Saudia
16 Sep - 21 Sep	Saudia
19 Sep - 03 Oct	Saudia
14 Sep - 21 Sep	Saudia
25 Sep - 03 Oct	Saudia
19 Sep - 26 Sep	Saudia
16 Sep - 23 Sep	Gulf Air
18 Sep - 23 Sep	Gulf Air
18 Sep - 25 Sep	Gulf Air
08 Sep - 15 Sep	Turkish Airlines
23 Sep - 30 Sep	Air India
27 Sep - 04 Oct	IndiGo
30 Sep - 07 Oct	Flynas
23 Sep - 04 Oct	Saudia
30 Sep - 04 Oct	Saudia
26 Sep - 04 Oct	Saudia
25 Sep - 02 Oct	Gulf Air

Also check the deals for one-way flights from Riyadh 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 Riyadh to Plaisance in September from $589

Return flights