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

Return flights

02 Dec - 06 Dec	Oman Air
06 Dec - 08 Dec	Oman Air
02 Dec - 09 Dec	Oman Air
06 Dec - 31 Dec	Gulf Air
05 Dec - 14 Jan	Oman Air
09 Dec - 27 Jan	Oman Air
06 Dec - 16 Dec	Oman Air
05 Dec - 15 Jan	Oman Air
13 Dec - 17 Dec	Oman Air
16 Dec - 29 Dec	Oman Air
03 Dec - 09 Dec	AirAsia X
12 Dec - 17 Dec	Oman Air
16 Dec - 30 Dec	Oman Air
15 Dec - 16 Jan	Etihad Airways
09 Dec - 09 Jan	Etihad Airways
02 Dec - 21 Jan	Kuwait Airways
04 Dec - 28 Jan	Kuwait Airways
02 Dec - 28 Jan	Kuwait Airways
01 Dec - 01 Jan	Air Arabia
01 Dec - 19 Jan	Gulf Air

Also check the deals for one-way flights from Istanbul to Bangkok 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 Istanbul to Bangkok in December from 369€

Return flights