Cheapest return flights from San Francisco to Seoul in May from $581

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

Return flights

06 May - 20 May China Southern
01 May - 31 May China Southern
05 May - 12 May Cathay Pacific
05 May - 19 May Cathay Pacific
06 May - 16 May Cathay Pacific
03 May - 10 May Air Premia direct
01 May - 11 May Air Premia direct
01 May - 11 May China Southern
01 May - 10 May Air Premia direct
09 May - 23 May Air Premia direct
06 May - 03 Jun Cathay Pacific
05 May - 18 Jun United direct
25 May - 08 Jun Zipair
27 May - 03 Jun Zipair
21 May - 06 Jun WestJet
31 May - 30 Jun WestJet
18 May - 27 Jun Zipair
25 May - 12 Jun Zipair
30 May - 07 Jun WestJet
29 May - 05 Jun Flair Airlines

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

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