Cheapest return flights from San Francisco to Seoul in May from $584

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

Return flights

06 May - 03 Jun China Southern
02 May - 09 May Air Premia direct
01 May - 11 May China Southern
01 May - 14 May China Southern
01 May - 17 May China Southern
01 May - 20 May China Southern
11 May - 18 May Alaska Airlines
04 May - 11 May Alaska Airlines
31 May - 05 Jun Alaska Airlines
13 May - 20 May Alaska Airlines
09 May - 18 May Alaska Airlines
10 May - 23 May Air Premia direct
05 May - 18 Jun United direct
19 May - 07 Jun Zipair
24 May - 01 Jun WestJet
26 May - 02 Jun WestJet
30 May - 07 Jun WestJet
18 May - 30 Jun Zipair
24 May - 04 Jun WestJet
19 May - 29 Jun Zipair

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

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