AirHint found the following cheapest one-way flights from Colombo (CMB) to Bangkok (DMK) in October 2025 (see full year).

One-Way flights

11 Oct	Thai AirAsia	direct
15 Oct	Thai AirAsia	direct
28 Oct	Thai AirAsia	direct
12 Oct	Thai AirAsia	direct
31 Oct	Thai AirAsia	direct
10 Oct	Thai AirAsia	direct
03 Oct	Thai AirAsia	direct
13 Oct	Thai AirAsia	direct
05 Oct	Thai AirAsia	direct
14 Oct	Thai AirAsia	direct

Also check the deals for return flights from Colombo to Bangkok 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.

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Cheapest one-way flights from Colombo to Bangkok in October from $153

One-Way flights