Cheapest return flights from San Francisco to Seoul in April from $612

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

Return flights

01 Apr - 15 Apr Philippine Airlines
01 Apr - 10 Apr Philippine Airlines
06 Apr - 13 Apr Philippine Airlines
15 Apr - 29 Apr Philippine Airlines
08 Apr - 21 Apr Philippine Airlines
13 Apr - 04 May Philippine Airlines
07 Apr - 28 Apr Philippine Airlines
29 Apr - 06 May Philippine Airlines
18 Apr - 26 Apr Philippine Airlines
11 Apr - 26 Apr Philippine Airlines
29 Apr - 12 May Philippine Airlines
04 Apr - 12 Apr Philippine Airlines
02 Apr - 10 Apr Philippine Airlines
26 Apr - 08 May Cathay Pacific
25 Apr - 09 May Cathay Pacific
06 Apr - 04 May Air Canada
29 Apr - 06 May Air Premia direct
13 Apr - 04 May Air Premia direct
06 Apr - 04 May Air Premia direct
29 Apr - 12 May United direct

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

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