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

One-Way flights

24 Sep	Biman Bangladesh Airlines
22 Sep	IndiGo
30 Sep	US-Bangla Airlines
21 Sep	IndiGo
29 Sep	IndiGo
20 Sep	Biman Bangladesh Airlines
25 Sep	Biman Bangladesh Airlines
26 Sep	IndiGo
18 Sep	Air India
19 Sep	Thai Airways

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

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 Dhaka to Colombo in September from 196€

One-Way flights