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

Return flights

10 Sep - 24 Sep	China Eastern
27 Sep - 04 Oct	China Eastern
06 Sep - 10 Sep	China Southern
07 Sep - 11 Sep	China Southern
25 Sep - 21 Oct	China Southern
23 Sep - 15 Oct	China Southern
09 Sep - 17 Sep	China Southern
27 Sep - 11 Oct	China Eastern
06 Sep - 13 Oct	China Southern
26 Sep - 21 Oct	Air China
27 Sep - 21 Oct	Air China
26 Sep - 18 Oct	Air China
30 Sep - 18 Oct	Air China
26 Sep - 20 Oct	China Southern
10 Sep - 11 Sep	AirAsia X
24 Sep - 29 Sep	China Southern

Also check the deals for one-way flights from Seoul 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 Seoul to Dhaka in September from 323€

Return flights