Cheap Korean Air flights San Diego (SAN) to Jeju (CJU)

Scoring cheap one-way Korean Air flights from SAN to CJU on Expedia is easy --- just filter by "Price (lowest to highest)." Or check out our affordable round-trip fares from $1,398 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Landing the best Korean Air deals from SAN to CJU often comes down to booking at the right time. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. As an added bonus, you can pocket 17% on average by buying your fare on a Sunday compared to a Friday, which is usually the most expensive day to book.* It's a good idea to start checking out flights about one month before you want to travel.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

To find the earliest departure from SAN to CJU with Korean Air, filter your results by "Early Morning" and "Morning." Booking an early flight generally means you'll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.

Depart from SAN to CJU with Korean Air and enjoy a host of benefits starting with a 5-star airline rating. When you book through Expedia as a Korean Airlines Skypass and One Key™ member, you may also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.