Cheapest return flights from Seoul to San Francisco in May from $451

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

Return flights

06 May - 15 May Air Premia direct
06 May - 25 May Air Premia direct
04 May - 11 May United direct
22 May - 21 Jun Asiana Airlines
04 May - 17 May Air Premia direct
03 May - 10 May Air Premia direct
04 May - 14 Jun Air Premia direct
01 May - 04 May Air Premia direct
01 May - 08 May Air Premia direct
01 May - 11 May Air Premia direct
03 May - 09 May Asiana Airlines direct
04 May - 10 May Asiana Airlines direct
18 May - 08 Jun Air Premia direct
25 May - 08 Jun Air Premia direct
29 May - 01 Jun Air Premia direct
22 May - 21 Jun Air Premia direct
29 May - 05 Jun Air Premia direct
27 May - 10 Jun Air Premia direct
30 May - 06 Jun Asiana Airlines direct
28 May - 06 Jun Asiana Airlines direct

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

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