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

Return flights

08 Sep - 30 Sep	Pegasus Airlines
17 Sep - 30 Sep	Pegasus Airlines
14 Sep - 30 Sep	Pegasus Airlines
25 Sep - 21 Oct	Pegasus Airlines
13 Sep - 20 Oct	Pegasus Airlines
01 Sep - 30 Sep	Pegasus Airlines
01 Sep - 06 Oct	Pegasus Airlines
26 Sep - 21 Oct	Pegasus Airlines
01 Sep - 01 Oct	Pegasus Airlines
27 Sep - 25 Oct	Turkish Airlines
14 Sep - 11 Oct	Turkish Airlines
14 Sep - 19 Oct	Turkish Airlines

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 $758

Return flights