Cheapest return flights from San Jose to Seoul in September from $841

Best time to book flights for San Jose (SJC) to Seoul (ICN) flights at AirHint

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

Return flights

02 Sep - 16 Sep Korean Air
07 Sep - 24 Sep Korean Air
03 Sep - 17 Sep Korean Air
14 Sep - 23 Sep Korean Air
15 Sep - 23 Sep Korean Air
15 Sep - 25 Sep Korean Air
15 Sep - 24 Sep Korean Air
07 Sep - 14 Sep Korean Air
13 Sep - 19 Sep Korean Air
07 Sep - 22 Sep Korean Air
22 Sep - 13 Oct Korean Air
27 Sep - 05 Oct Korean Air
17 Sep - 01 Oct Alaska Airlines
16 Sep - 01 Oct China Airlines
21 Sep - 03 Oct Korean Air
22 Sep - 03 Oct Korean Air
24 Sep - 15 Oct Alaska Airlines

Also check the deals for one-way flights from San Jose to Seoul in September.

Skyscanner

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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