Cheap Korean Air flights Jakarta (CGK) to Ulsan (USN)

Landing cheap one-way Korean Air flights from CGK to USN on Expedia is a breeze --- just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares 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 CGK to USN often comes down to booking at the right moment. 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 often the most expensive day to book.* It's a good idea to start searching for 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.

Filter your results by "Early Morning" and "Morning" to see the earliest flights from CGK to USN. Taking off early means flight cancellations are less likely.**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.

A 5-star airline rating and the ability to rack up points through Korean Airlines Skypass are the start of the reasons to travel from CGK to USN with Korean Air. Plus, when you join our One Key™ program, you can receive OneKeyCash™* in addition to Korean Air's loyalty program earnings. It's yours to spend on future travel plans.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.