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

Return flights

16 Sep - 11 Oct	LOT
16 Sep - 12 Oct	LOT
17 Sep - 12 Oct	LOT
29 Sep - 12 Oct	LOT
28 Sep - 12 Oct	LOT
24 Sep - 10 Oct	LOT
23 Sep - 10 Oct	LOT
16 Sep - 23 Sep	Air France
22 Sep - 12 Oct	LOT
28 Sep - 10 Oct	LOT
10 Sep - 18 Sep	Finnair
12 Sep - 19 Sep	Scandinavian Airlines
01 Sep - 12 Sep	Finnair
01 Sep - 13 Sep	Eurowings
06 Sep - 21 Sep	Finnair
29 Sep - 13 Oct	Finnair
05 Sep - 21 Sep	Finnair
02 Sep - 13 Sep	Finnair
02 Sep - 09 Sep	Eurowings
14 Sep - 25 Sep	Finnair

Also check the deals for one-way flights from Hamburg to Seoul 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 Hamburg to Seoul in September from 627€

Return flights