Cheapest return flights from San Francisco to Seoul in May from $582

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

Return flights

01 May - 31 May China Southern
03 May - 16 May Air Premia direct
03 May - 18 May Air Premia direct
09 May - 16 May Alaska Airlines
04 May - 11 May Alaska Airlines
11 May - 18 May Alaska Airlines
06 May - 13 May Alaska Airlines
05 May - 27 May China Southern
11 May - 20 May Alaska Airlines
01 May - 09 May United direct
05 May - 18 Jun United direct
18 May - 08 Jun Zipair
07 May - 17 Jun Asiana Airlines direct
24 May - 03 Jun WestJet
26 May - 02 Jun WestJet
24 May - 04 Jun WestJet
20 May - 01 Jun WestJet
25 May - 08 Jun Zipair
07 May - 14 Jun Delta
31 May - 30 Jun WestJet

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

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