AirHint found the following cheapest return flights from Singapore (SIN) to Istanbul (SAW) in September 2026 (see full year).

Return flights

21 Sep - 27 Sep	Qatar Airways
16 Sep - 26 Sep	Qatar Airways
23 Sep - 02 Oct	Qatar Airways
18 Sep - 26 Sep	Qatar Airways
12 Sep - 26 Sep	Qatar Airways
17 Sep - 21 Sep	AirAsia
29 Sep - 03 Oct	Qatar Airways
01 Sep - 08 Sep	Qatar Airways
08 Sep - 17 Sep	Qatar Airways
03 Sep - 12 Sep	Qatar Airways
04 Sep - 09 Oct	Qatar Airways
29 Sep - 29 Sep	Qatar Airways
11 Sep - 20 Sep	KLM

Also check the deals for one-way flights from Singapore 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 Singapore to Istanbul in September from $623

Return flights