Cheapest return flights from San Francisco to Seoul in May from $769

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

Return flights

07 May - 19 May Cathay Pacific
08 May - 17 May Philippine Airlines
18 May - 25 May Flair Airlines
20 May - 31 May Philippine Airlines
14 May - 25 May EVA Air
20 May - 03 Jun Flair Airlines
19 May - 05 Jun Philippine Airlines
14 May - 29 May China Airlines
22 May - 05 Jun Flair Airlines
14 May - 30 May Philippine Airlines
23 May - 07 Jun WestJet
27 May - 03 Jun WestJet
09 May - 16 May Cathay Pacific
15 May - 30 May Philippine Airlines
16 May - 30 May Philippine Airlines
30 May - 13 Jun Alaska Airlines
29 May - 10 Jun Flair Airlines
29 May - 14 Jun Flair Airlines
23 May - 02 Jun WestJet
22 May - 05 Jun Air Premia direct

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

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