AirHint found the following cheapest return flights from Oakland (OAK) to Seoul (ICN) in July 2025 (see full year).

Return flights

21 Jul - 25 Aug	Delta
23 Jul - 30 Jul	Alaska Airlines
28 Jul - 29 Jul	Hawaiian Airlines
15 Jul - 30 Aug	Korean Air
08 Jul - 15 Jul	Korean Air
15 Jul - 26 Jul	Korean Air
16 Jul - 26 Jul	Korean Air
20 Jul - 30 Jul	Korean Air
05 Jul - 26 Jul	Korean Air
17 Jul - 03 Aug	Korean Air
18 Jul - 03 Aug	Korean Air
08 Jul - 10 Aug	Korean Air
30 Jul - 08 Aug	Korean Air
09 Jul - 23 Jul	Korean Air
09 Jul - 30 Jul	Korean Air
11 Jul - 30 Jul	Korean Air
31 Jul - 31 Aug	Korean Air
16 Jul - 06 Aug	Korean Air
15 Jul - 04 Aug	Korean Air
16 Jul - 08 Aug	Korean Air

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

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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Cheapest return flights from Oakland to Seoul in July from $881

Return flights