AirHint found the following cheapest return flights from Amsterdam (AMS) to Istanbul (SAW) in September 2025 (see full year).

Return flights

16 Sep - 14 Oct	AJet	direct
11 Sep - 18 Sep	AJet	direct
07 Sep - 06 Oct	AJet	direct
16 Sep - 22 Sep	AJet	direct
01 Sep - 22 Sep	AJet	direct
09 Sep - 22 Sep	AJet	direct
05 Sep - 15 Sep	AJet
01 Sep - 10 Sep	AJet	direct
06 Sep - 19 Sep	AJet	direct
05 Sep - 26 Sep	AJet	direct
05 Sep - 17 Sep	AJet	direct
07 Sep - 17 Sep	AJet	direct
19 Sep - 06 Oct	Pegasus Airlines	direct
05 Sep - 05 Oct	AJet	direct
15 Sep - 03 Oct	AJet	direct
25 Sep - 03 Oct	Pegasus Airlines	direct
02 Sep - 01 Oct	AJet	direct
11 Sep - 01 Oct	AJet	direct
24 Sep - 08 Oct	Pegasus Airlines	direct
28 Sep - 03 Oct	Pegasus Airlines	direct

Also check the deals for one-way flights from Amsterdam 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 Amsterdam to Istanbul in September from 165€

Return flights