AirHint found the following cheapest return flights from Nantes (NTE) to St.-denis (RUN) in September 2025 (see full year).

Return flights

10 Sep - 24 Sep	Air France
17 Sep - 24 Sep	Air France
10 Sep - 17 Sep	Air France
10 Sep - 23 Sep	Air France
18 Sep - 01 Oct	Air France
20 Sep - 27 Sep	Ryanair
07 Sep - 14 Sep	Air France
11 Sep - 18 Sep	Air France
30 Sep - 29 Oct	Air France
16 Sep - 30 Sep	Air France
13 Sep - 24 Sep	Ryanair
20 Sep - 28 Sep	Ryanair
28 Sep - 17 Oct	Ryanair
29 Sep - 28 Oct	Air France

Also check the deals for one-way flights from Nantes to St.-denis 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 Nantes to St.-denis in September from $811

Return flights