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

Return flights

28 Dec - 26 Jan	AirAsia
25 Dec - 09 Jan	AirAsia
31 Dec - 11 Jan	Qatar Airways
28 Dec - 13 Jan	Qatar Airways
30 Dec - 08 Jan	Emirates
13 Dec - 15 Dec	Firefly
07 Dec - 12 Dec	AirAsia
11 Dec - 12 Dec	AirAsia
30 Dec - 04 Jan	AirAsia
26 Dec - 09 Jan	Qatar Airways
23 Dec - 05 Jan	AirAsia
15 Dec - 26 Dec	Scoot
10 Dec - 17 Dec	Malaysia Airlines
28 Dec - 06 Jan	Qatar Airways
31 Dec - 07 Jan	Qatar Airways
22 Dec - 29 Dec	Scoot
09 Dec - 17 Dec	AirAsia
16 Dec - 22 Dec	AirAsia
23 Dec - 26 Dec	Scoot
09 Dec - 19 Dec	AirAsia

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

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 December from 502€

Return flights