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

Return flights

14 Sep - 30 Sep	Pegasus Airlines
14 Sep - 11 Oct	Finnair
21 Sep - 31 Oct	Pegasus Airlines
01 Sep - 01 Oct	Pegasus Airlines
12 Sep - 25 Sep	IndiGo
26 Sep - 29 Oct	Pegasus Airlines
14 Sep - 21 Oct	Pegasus Airlines
15 Sep - 20 Oct	Pegasus Airlines
15 Sep - 21 Oct	Pegasus Airlines
25 Sep - 25 Oct	IndiGo
13 Sep - 21 Oct	IndiGo
12 Sep - 19 Oct	IndiGo

Also check the deals for one-way flights from Helsinki 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 Helsinki to Dhaka in September from 601€

Return flights