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

Return flights

02 May - 11 May	AirAsia
08 May - 16 May	Gulf Air
18 May - 27 May	Gulf Air
14 May - 22 May	Gulf Air
14 May - 18 May	Gulf Air
10 May - 18 May	Gulf Air
25 May - 04 Jun	Gulf Air
25 May - 03 Jun	Gulf Air
25 May - 09 Jun	Gulf Air
29 May - 12 Jun	Gulf Air
27 May - 07 Jun	Etihad Airways
25 May - 29 May	Gulf Air
26 May - 06 Jun	Gulf Air
18 May - 27 May	Turkish Airlines	direct
13 May - 20 May	Turkish Airlines	direct
10 May - 19 May	Turkish Airlines	direct
28 May - 09 Jun	Gulf Air
31 May - 15 Jun	Gulf Air
26 May - 01 Jun	Gulf Air
30 May - 13 Jun	Gulf Air

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 400€

Return flights