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

Return flights

10 Aug - 15 Aug	Emirates
11 Aug - 26 Aug	AirAsia
23 Aug - 26 Aug	AirAsia
04 Aug - 12 Aug	AirAsia
04 Aug - 07 Aug	AirAsia
06 Aug - 26 Aug	AirAsia
06 Aug - 12 Aug	AirAsia
04 Aug - 09 Aug	AirAsia
06 Aug - 09 Aug	AirAsia
10 Aug - 15 Aug	Turkish Airlines	direct

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 $676

Return flights