AirHint found the following cheapest return flights from Valencia (VLC) to Istanbul (IST) in September 2025 (see full year).

Return flights

24 Sep - 30 Sep	easyJet
25 Sep - 29 Sep	Ryanair
30 Sep - 04 Oct	easyJet
18 Sep - 24 Sep	Ryanair
17 Sep - 03 Oct	Wizz Air
30 Sep - 03 Oct	Ryanair
29 Sep - 03 Oct	Volotea
23 Sep - 29 Sep	Volotea
23 Sep - 30 Sep	Wizz Air Malta
24 Sep - 29 Sep	easyJet
30 Sep - 02 Oct	easyJet
20 Sep - 29 Sep	Ryanair
23 Sep - 26 Sep	Wizz Air Malta
30 Sep - 05 Oct	easyJet
14 Sep - 16 Sep	Ryanair
24 Sep - 28 Sep	easyJet
29 Sep - 07 Oct	Volotea
17 Sep - 06 Oct	Ryanair
27 Sep - 04 Oct	Wizz Air Malta
28 Sep - 05 Oct	Wizz Air Malta

Also check the deals for one-way flights from Valencia 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 return flights from Valencia to Istanbul in September from $175

Return flights