Cheapest return flights from Seoul to San Francisco in April from $445

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

Return flights

01 Apr - 06 Apr Air Premia direct
03 Apr - 10 Apr Air Premia direct
01 Apr - 15 Apr Air Premia direct
22 Apr - 29 Apr Air Premia direct
03 Apr - 17 Apr Air Premia direct
22 Apr - 27 Apr Air Premia direct
06 Apr - 27 Apr Air Premia direct
05 Apr - 12 Apr Air Premia direct
15 Apr - 29 Apr Air Premia direct
19 Apr - 26 Apr Air Premia direct
24 Apr - 29 May Air Premia direct
29 Apr - 04 May Air Premia direct
29 Apr - 06 May Air Premia direct
29 Apr - 08 May Air Premia direct
24 Apr - 04 May Air Premia direct
10 Apr - 06 May Air Premia direct
27 Apr - 06 May United direct
14 Apr - 05 May Air Canada
14 Apr - 05 May Asiana Airlines direct
29 Apr - 05 May Air Canada

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

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