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

Return flights

09 May - 14 May	AirAsia
15 May - 20 May	Thai AirAsia
16 May - 23 May	AirAsia
07 May - 12 May	Thai AirAsia
21 May - 25 May	Thai AirAsia	direct
07 May - 10 May	Thai AirAsia	direct
16 May - 23 May	Thai AirAsia	direct
15 May - 20 May	Thai AirAsia	direct
09 May - 14 May	Thai AirAsia	direct
01 May - 06 May	Thai AirAsia

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

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 May from 197€

Return flights