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

Return flights

22 Sep - 30 Sep	IndiGo
22 Sep - 14 Oct	IndiGo
21 Sep - 28 Sep	IndiGo
23 Sep - 30 Sep	Biman Bangladesh Airlines
21 Sep - 25 Sep	IndiGo
22 Sep - 02 Oct	IndiGo
23 Sep - 28 Sep	Biman Bangladesh Airlines
24 Sep - 01 Oct	IndiGo
28 Sep - 01 Oct	IndiGo
30 Sep - 23 Oct	IndiGo
23 Sep - 21 Oct	Biman Bangladesh Airlines
28 Sep - 09 Oct	IndiGo
23 Sep - 06 Oct	IndiGo
24 Sep - 04 Oct	Biman Bangladesh Airlines
30 Sep - 05 Oct	IndiGo
17 Sep - 26 Sep	Biman Bangladesh Airlines
19 Sep - 22 Sep	Thai Airways
19 Sep - 23 Sep	Thai Airways
21 Sep - 29 Sep	IndiGo
19 Sep - 24 Sep	Thai Airways

Also check the deals for one-way 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 return flights from Dhaka to Colombo in September from 289€

Return flights