Cheapest return flights from Istanbul to Singapore in September from $478

Best time to book flights for Istanbul (IST) to Singapore (SIN) flights at AirHint

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

Return flights

06 Sep - 17 Sep IndiGo
13 Sep - 21 Sep IndiGo
08 Sep - 15 Sep Pegasus Airlines
03 Sep - 16 Sep IndiGo
09 Sep - 14 Sep IndiGo
12 Sep - 16 Sep IndiGo
01 Sep - 30 Sep IndiGo
02 Sep - 10 Sep IndiGo
14 Sep - 25 Sep IndiGo
02 Sep - 12 Sep IndiGo
30 Sep - 06 Oct Gulf Air
25 Sep - 02 Oct IndiGo
30 Sep - 06 Oct Turkish Airlines direct

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

Skyscanner

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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