AirHint found the following cheapest return flights from Istanbul (IST) to Singapore (SIN) in October 2025 (see full year).

Return flights

06 Oct - 20 Oct	Pegasus Airlines
03 Oct - 05 Oct	Pegasus Airlines
28 Oct - 06 Nov	Pegasus Airlines
04 Oct - 12 Oct	Pegasus Airlines
09 Oct - 12 Oct	Pegasus Airlines
11 Oct - 16 Oct	Pegasus Airlines
03 Oct - 14 Oct	Pegasus Airlines
08 Oct - 15 Oct	Pegasus Airlines
03 Oct - 10 Oct	Pegasus Airlines
04 Oct - 11 Oct	Pegasus Airlines
13 Oct - 20 Oct	Pegasus Airlines
20 Oct - 17 Nov	Pegasus Airlines
29 Oct - 07 Nov	Gulf Air
25 Oct - 02 Nov	Gulf Air
22 Oct - 05 Nov	Gulf Air
22 Oct - 04 Nov	Gulf Air
15 Oct - 06 Nov	IndiGo
22 Oct - 01 Nov	Gulf Air
22 Oct - 02 Nov	Gulf Air
22 Oct - 03 Nov	Gulf Air

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

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.

Book a cheap hotel in Singapore

Cheap car rent in Singapore

Cheapest return flights from Istanbul to Singapore in October from 387€

Return flights