Cheapest one-way flights from Bangkok to Colombo in September from $122

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

One-Way flights

18 Sep Thai AirAsia direct
28 Sep Thai AirAsia direct
11 Sep Thai AirAsia direct
13 Sep Thai AirAsia direct
22 Sep Thai AirAsia direct
19 Sep Thai AirAsia direct
24 Sep Thai AirAsia direct
17 Sep Thai AirAsia direct
14 Sep Thai AirAsia direct
02 Sep Thai AirAsia direct

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

Skyscanner

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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