AirHint found the following cheapest return flights from Colombo (CMB) to Bangkok (DMK) in December 2025 (see full year).

Return flights

26 Dec - 31 Dec	AirAsia
28 Dec - 02 Jan	AirAsia
31 Dec - 04 Jan	AirAsia
28 Dec - 30 Dec	AirAsia
28 Dec - 31 Dec	AirAsia
27 Dec - 31 Dec	AirAsia
30 Dec - 03 Jan	Thai AirAsia
28 Dec - 01 Jan	AirAsia
28 Dec - 04 Jan	AirAsia
27 Dec - 02 Jan	AirAsia
28 Dec - 03 Jan	AirAsia
27 Dec - 03 Jan	AirAsia
31 Dec - 08 Jan	AirAsia
31 Dec - 13 Jan	AirAsia
25 Dec - 30 Dec	Thai AirAsia
27 Dec - 31 Dec	Thai AirAsia	direct
30 Dec - 31 Dec	Thai AirAsia	direct
26 Dec - 31 Dec	Thai AirAsia	direct
28 Dec - 31 Dec	Thai AirAsia	direct
26 Dec - 27 Dec	AirAsia

Also check the deals for one-way flights from Colombo 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 Colombo to Bangkok in December from 191€

Return flights