AirHint found the following cheapest return flights from Bangkok (DMK) to Colombo (CMB) in August 2026 (see full year).

Return flights

17 Aug - 24 Aug	Thai AirAsia
17 Aug - 26 Aug	Thai AirAsia	direct
17 Aug - 27 Aug	Thai AirAsia	direct
20 Aug - 26 Aug	Thai AirAsia	direct
20 Aug - 27 Aug	Thai AirAsia	direct
11 Aug - 26 Aug	Thai AirAsia	direct
11 Aug - 27 Aug	Thai AirAsia	direct
26 Aug - 27 Aug	Thai AirAsia	direct
14 Aug - 26 Aug	Thai AirAsia	direct
14 Aug - 27 Aug	Thai AirAsia	direct

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

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 Bangkok to Colombo in August from $299

Return flights