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

Return flights

22 Aug - 04 Sep	AirAsia
10 Aug - 16 Aug	Emirates
23 Aug - 04 Sep	AirAsia
23 Aug - 13 Sep	AirAsia
22 Aug - 31 Aug	Emirates
21 Aug - 30 Aug	Emirates
21 Aug - 31 Aug	Emirates
22 Aug - 30 Aug	Emirates
02 Aug - 07 Aug	Emirates
21 Aug - 31 Aug	Turkish Airlines	direct
22 Aug - 02 Sep	AirAsia
02 Aug - 07 Aug	Turkish Airlines	direct
23 Aug - 31 Aug	AirAsia
22 Aug - 28 Aug	AirAsia
23 Aug - 02 Sep	AirAsia
13 Aug - 02 Sep	AirAsia

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

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 August from 529€

Return flights