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

Return flights

16 Sep - 24 Sep	Ethiopian Airlines
04 Sep - 25 Sep	Ethiopian Airlines
17 Sep - 24 Sep	Air Canada
10 Sep - 17 Sep	Air Canada
03 Sep - 10 Sep	Air Canada
10 Sep - 30 Sep	Air France
02 Sep - 01 Oct	Ethiopian Airlines
16 Sep - 25 Sep	Air Canada
16 Sep - 16 Oct	Air Canada
09 Sep - 16 Sep	KLM
02 Sep - 12 Sep	Ethiopian Airlines
02 Sep - 24 Sep	Emirates
08 Sep - 24 Oct	Air France
30 Sep - 07 Oct	Korean Air
27 Sep - 06 Oct	Ethiopian Airlines
02 Sep - 17 Oct	Ethiopian Airlines
28 Sep - 05 Oct	Korean Air
30 Sep - 08 Oct	Air Canada
16 Sep - 09 Oct	Ethiopian Airlines
27 Sep - 04 Oct	Emirates

Also check the deals for one-way flights from Seoul to Buenos Aires 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 Buenos Aires in September from $1701

Return flights