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

One-Way flights

13 Oct	Thai AirAsia	direct
16 Oct	Thai AirAsia	direct
12 Oct	Thai AirAsia	direct
30 Oct	Thai AirAsia	direct
07 Oct	Thai AirAsia	direct
08 Oct	Thai AirAsia	direct
03 Oct	Thai AirAsia	direct
11 Oct	Thai AirAsia	direct
10 Oct	Thai AirAsia	direct
25 Oct	Thai AirAsia	direct

Also check the deals for return flights from Bangkok to Colombo 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 Bangkok to Colombo in October from 104€

One-Way flights