Cheapest return flights from Istanbul to Singapore in December from $743

Best time to book flights for Istanbul (IST) to Singapore (SIN) flights at AirHint

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

Return flights

07 Dec - 13 Jan Aegean Airlines
08 Dec - 15 Dec IndiGo
13 Dec - 20 Jan Thai Airways
23 Dec - 05 Jan Thai Airways
15 Dec - 20 Jan Thai Airways
27 Dec - 03 Jan IndiGo
15 Dec - 20 Jan Turkish Airlines direct
13 Dec - 20 Jan Turkish Airlines direct
08 Dec - 15 Dec Turkish Airlines direct
07 Dec - 13 Jan Turkish Airlines direct
27 Dec - 03 Jan Turkish Airlines direct
23 Dec - 05 Jan Turkish Airlines direct
22 Dec - 28 Dec China Southern

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

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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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