Cheapest return flights from San Francisco to Seoul in April from $598

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

Return flights

05 Apr - 13 Apr China Southern
10 Apr - 19 Apr China Southern
07 Apr - 21 Apr China Southern
12 Apr - 19 Apr China Southern
09 Apr - 27 Apr Flair Airlines
03 Apr - 13 Apr China Southern
22 Apr - 03 May China Southern
06 Apr - 13 Apr Philippine Airlines
30 Apr - 07 May Philippine Airlines
29 Apr - 10 May Philippine Airlines
27 Apr - 08 May Philippine Airlines
06 Apr - 24 Apr Philippine Airlines
11 Apr - 18 Apr Air China
12 Apr - 24 Apr Flair Airlines
20 Apr - 10 May Flair Airlines
16 Apr - 02 May Vietnam Airlines
27 Apr - 08 May Air Premia direct
29 Apr - 10 May Air Premia direct
20 Apr - 10 May Air Premia direct
30 Apr - 07 May Asiana Airlines direct

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

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