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

Return flights

02 Sep - 06 Sep	IndiGo
18 Sep - 27 Sep	IndiGo
24 Sep - 26 Sep	IndiGo
02 Sep - 09 Sep	IndiGo
17 Sep - 24 Sep	IndiGo
16 Sep - 20 Sep	IndiGo
05 Sep - 05 Oct	Air India
20 Sep - 30 Sep	IndiGo
27 Sep - 04 Oct	IndiGo
17 Sep - 24 Sep	FitsAir	direct
20 Sep - 30 Sep	FitsAir	direct
16 Sep - 20 Sep	FitsAir	direct
05 Sep - 05 Oct	FitsAir	direct
27 Sep - 04 Oct	FitsAir	direct

Also check the deals for one-way flights from Colombo to Dhaka 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 Colombo to Dhaka in September from $279

Return flights