Cheapest return flights from San Francisco to Seoul in May from $752

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

Return flights

13 May - 27 May WestJet
24 May - 31 May WestJet
11 May - 16 May Cathay Pacific
20 May - 04 Jun WestJet
30 May - 13 Jun WestJet
22 May - 07 Jun WestJet
17 May - 24 May WestJet
13 May - 27 May Air Premia direct
17 May - 24 May Air Premia direct
22 May - 07 Jun Air Premia direct
11 May - 16 May Asiana Airlines direct
24 May - 31 May Air Premia direct
20 May - 04 Jun Delta direct
30 May - 13 Jun Delta direct

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

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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