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

Return flights

02 Sep - 11 Sep	Air China
03 Sep - 12 Sep	Air China
17 Sep - 24 Sep	Air China
02 Sep - 14 Sep	Air China
03 Sep - 15 Sep	Air China
02 Sep - 09 Sep	Air China
11 Sep - 16 Sep	Air China
05 Sep - 12 Sep	Air China
06 Sep - 12 Sep	Air China
02 Sep - 07 Sep	Air China
02 Sep - 14 Oct	Air China
03 Sep - 14 Oct	Air China
22 Sep - 01 Oct	Air China
21 Sep - 01 Oct	Air China
02 Sep - 16 Oct	Air China
16 Sep - 21 Oct	Air China
22 Sep - 03 Oct	Air China
24 Sep - 01 Oct	Emirates
15 Sep - 02 Oct	Emirates
15 Sep - 01 Oct	Emirates

Also check the deals for one-way flights from Seoul to Vienna 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 Vienna in September from $583

Return flights