Cheapest return flights from Oakland to Seoul in April from $615

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

Return flights

06 Apr - 17 Apr Alaska Airlines
08 Apr - 17 Apr Alaska Airlines
09 Apr - 15 Apr Alaska Airlines
09 Apr - 16 Apr Alaska Airlines
01 Apr - 08 Apr Alaska Airlines
04 Apr - 13 Apr Alaska Airlines
03 Apr - 10 Apr Alaska Airlines
17 Apr - 04 May Delta
18 Apr - 04 May Delta
04 Apr - 14 Apr Delta
18 Apr - 03 May Delta
02 Apr - 23 Apr Alaska Airlines
01 Apr - 30 Apr Alaska Airlines
29 Apr - 24 May Korean Air
25 Apr - 02 May Korean Air
29 Apr - 07 May Korean Air
25 Apr - 01 May Korean Air
25 Apr - 10 May Korean Air
21 Apr - 03 May Korean Air
16 Apr - 03 May Korean Air

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

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