Cheapest return flights from San Jose to Seoul in May from $709

AirHint found the following cheapest return flights from San Jose (SJC) to Seoul (ICN) in May 2026 (see full year).

Return flights

01 May - 06 May Alaska Airlines
04 May - 13 May Alaska Airlines
06 May - 12 May Zipair
06 May - 13 May Zipair
05 May - 19 May Korean Air
05 May - 27 May Korean Air
04 May - 11 May Alaska Airlines
01 May - 12 May Korean Air
02 May - 16 May Korean Air
02 May - 17 May Korean Air
11 May - 15 Jun Alaska Airlines
07 May - 12 Jun Korean Air
08 May - 19 Jun Korean Air
19 May - 30 Jun Korean Air
20 May - 30 Jun Korean Air
26 May - 02 Jun Korean Air
28 May - 08 Jun Korean Air
17 May - 28 Jun Alaska Airlines
31 May - 30 Jun Korean Air
22 May - 12 Jun Alaska Airlines

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

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