Cheapest return flights from Bangkok to Colombo in September from $259

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

Return flights

30 Sep - 07 Oct Thai AirAsia
22 Sep - 28 Sep Thai AirAsia
13 Sep - 20 Sep Thai AirAsia
26 Sep - 01 Oct Thai AirAsia
18 Sep - 20 Sep Thai AirAsia
25 Sep - 14 Oct Thai AirAsia
25 Sep - 28 Sep Thai AirAsia direct
25 Sep - 27 Sep Thai AirAsia direct
22 Sep - 28 Sep Thai AirAsia direct
22 Sep - 27 Sep Thai AirAsia direct
25 Sep - 29 Sep Thai AirAsia direct
25 Sep - 30 Sep Thai AirAsia direct
22 Sep - 23 Sep Thai AirAsia direct
28 Sep - 05 Oct Thai AirAsia
25 Sep - 01 Oct Thai AirAsia direct
25 Sep - 04 Oct Thai AirAsia direct
25 Sep - 03 Oct Thai AirAsia direct
22 Sep - 01 Oct Thai AirAsia direct
22 Sep - 04 Oct Thai AirAsia direct
22 Sep - 03 Oct Thai AirAsia direct

Also check the deals for one-way flights from Bangkok to Colombo in September.

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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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