AirHint found the following cheapest one-way flights from Nantes (NTE) to Istanbul (IST) in September 2025 (see full year).

One-Way flights

03 Sep	Transavia France	direct
05 Sep	Transavia France	direct
02 Sep	Transavia France	direct
01 Sep	Transavia France	direct
15 Sep	Transavia France	direct
12 Sep	Transavia France	direct
08 Sep	Transavia France	direct
10 Sep	Transavia France	direct
19 Sep	Transavia France	direct
13 Sep	Ryanair

Also check the deals for return flights from Nantes to Istanbul 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 one-way flights from Nantes to Istanbul in September from $73

One-Way flights