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

Return flights

14 Jul - 21 Jul	Alaska Airlines
24 Jul - 29 Jul	Air Canada
29 Jul - 12 Aug	Hawaiian Airlines
22 Jul - 01 Aug	Hawaiian Airlines
21 Jul - 06 Aug	Delta
21 Jul - 04 Aug	Delta
14 Jul - 04 Aug	Delta
20 Jul - 05 Aug	United
01 Jul - 06 Aug	Alaska Airlines
01 Jul - 05 Aug	Alaska Airlines
02 Jul - 04 Aug	Delta
02 Jul - 01 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 $1084

Return flights