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

Return flights

05 Dec - 12 Dec	easyJet
01 Dec - 08 Dec	Transavia France
04 Dec - 09 Dec	Air France
01 Dec - 08 Dec	Transavia France	direct
18 Dec - 21 Dec	Air France
28 Dec - 04 Jan	KLM
05 Dec - 12 Dec	Transavia France	direct
18 Dec - 20 Dec	Air France
17 Dec - 21 Dec	Transavia France
17 Dec - 20 Dec	Air France
21 Dec - 28 Dec	KLM
29 Dec - 02 Jan	Air France
29 Dec - 05 Jan	easyJet
25 Dec - 01 Jan	KLM
27 Dec - 04 Jan	KLM
26 Dec - 04 Jan	KLM
27 Dec - 03 Jan	KLM
26 Dec - 02 Jan	KLM
29 Dec - 02 Jan	Transavia France	direct
26 Dec - 02 Jan	Transavia France	direct

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

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 December from $228

Return flights