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

Return flights

04 May - 10 May	AirAsia X
08 May - 13 May	AirAsia X
06 May - 13 May	Gulf Air
04 May - 11 May	Gulf Air
01 May - 10 May	AirAsia X
06 May - 14 May	Gulf Air
05 May - 15 May	Gulf Air
07 May - 13 May	Etihad Airways
02 May - 13 May	Gulf Air
07 May - 14 May	Gulf Air
21 May - 12 Jun	Gulf Air
22 May - 05 Jun	Gulf Air
28 May - 07 Jun	Turkish Airlines	direct
21 May - 12 Jun	Turkish Airlines	direct
22 May - 05 Jun	Turkish Airlines	direct

Also check the deals for one-way flights from Istanbul to Singapore 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 Istanbul to Singapore in May from $568

Return flights