Cheapest return flights from San Francisco to Seoul in May from $575

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

Return flights

01 May - 10 May China Southern
05 May - 27 May China Southern
01 May - 14 May China Southern
01 May - 11 May China Southern
05 May - 12 May Cathay Pacific
06 May - 16 May Cathay Pacific
06 May - 27 May Cathay Pacific
06 May - 14 May Cathay Pacific
13 May - 24 May Cathay Pacific
11 May - 19 May Cathay Pacific
06 May - 03 Jun Cathay Pacific
07 May - 16 Jun Cathay Pacific
06 May - 16 Jun Cathay Pacific
05 May - 18 Jun United direct
05 May - 03 Jun Alaska Airlines
08 May - 16 Jun Cathay Pacific
12 May - 30 Jun Cathay Pacific
08 May - 19 Jun Cathay Pacific
19 May - 09 Jun Cathay Pacific
19 May - 16 Jun Cathay Pacific

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

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