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

Return flights

10 May - 20 May	AirAsia
10 May - 15 May	AirAsia
06 May - 17 May	Etihad Airways
10 May - 22 May	AirAsia
09 May - 17 May	Etihad Airways
01 May - 11 May	Etihad Airways
05 May - 14 May	Etihad Airways
10 May - 20 May	Turkish Airlines	direct
05 May - 14 May	Turkish Airlines	direct
04 May - 10 May	Gulf Air
30 May - 07 Jun	Gulf Air
27 May - 01 Jun	Gulf Air
27 May - 03 Jun	Gulf Air
23 May - 02 Jun	Gulf Air
24 May - 03 Jun	Gulf Air
15 May - 01 Jun	Gulf Air
31 May - 14 Jun	Gulf Air
28 May - 08 Jun	Gulf Air
26 May - 07 Jun	Gulf Air
21 May - 01 Jun	Etihad Airways

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

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 May from 372€

Return flights