AirHint found the following cheapest return flights from Nantes (NTE) to Istanbul (IST) in October 2025 (see full year).

Return flights

01 Oct - 03 Oct	Transavia France	direct
01 Oct - 04 Oct	Transavia France
04 Oct - 08 Oct	Ryanair
01 Oct - 05 Oct	Transavia France
15 Oct - 22 Oct	Transavia France
15 Oct - 22 Oct	Transavia France	direct
11 Oct - 18 Oct	easyJet
10 Oct - 17 Oct	KLM
06 Oct - 13 Oct	Transavia France
17 Oct - 20 Oct	Transavia France	direct
25 Oct - 01 Nov	Transavia France
18 Oct - 01 Nov	easyJet
24 Oct - 02 Nov	Transavia France
30 Oct - 08 Nov	KLM

Also check the deals for one-way flights from Nantes to Istanbul in October.

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 Istanbul in October from 137€

Return flights