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

Return flights

12 Jul - 19 Jul	WestJet
11 Jul - 19 Jul	WestJet
16 Jul - 19 Jul	Spirit Airlines
10 Jul - 16 Jul	WestJet
06 Jul - 13 Jul	Alaska Airlines
22 Jul - 29 Jul	Hawaiian Airlines
09 Jul - 06 Aug	Hawaiian Airlines
09 Jul - 04 Aug	Hawaiian Airlines
31 Jul - 09 Aug	Air Canada
09 Jul - 05 Aug	Hawaiian Airlines
14 Jul - 15 Jul	Alaska Airlines
09 Jul - 03 Aug	Hawaiian Airlines
05 Jul - 03 Aug	Hawaiian Airlines
08 Jul - 01 Aug	Delta
09 Jul - 01 Aug	Delta
06 Jul - 03 Aug	Delta

Also check the deals for one-way flights from San Diego 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 San Diego to Seoul in July from 842€

Return flights