KTX-Sancheon 121 is Korail's domestically-developed next-generation high-speed train from Seoul to Busan. Operating at up to 330 km/h on the Gyeongbu HSR line, the KTX-Sancheon has improved aerodynamics, ride quality, and reduced noise compared to the original KTX design. The name means "mountain stream."
| # | Station | Arrival | Departure |
|---|---|---|---|
| 1 | Suseo Station Seoul | Start | 06:05 |
| 2 | Dongtan Station Hwaseong | 06:22 | 06:24 |
| 3 | Daejeon Station Daejeon | 07:08 | 07:10 |
| 4 | Dongdaegu Station Daegu | 07:59 | 08:01 |
| 5 | Busan Station Busan | 08:42 | End |
Timetable data is sourced from official South Korea railways records and may vary due to delays or seasonal changes. Always verify with the official operator before travelling.
KTX-Sancheon 121 is Korail's domestically-developed next-generation high-speed train from Seoul to Busan. Operating at up to 330 km/h on the Gyeongbu HSR line, the KTX-Sancheon has improved aerodynamics, ride quality, and reduced noise compared to the original KTX design. The name means "mountain stream."
The train runs on every day of the week. The full route covers 5 stops with a total journey time of approximately 2h 37m.
Available travel classes include Normal, Economy. Fares start from KRW 11,700 for Normal.
Book KTX-Sancheon Seoul–Busan tickets at letskorail.com, the official Korail portal. Online booking opens 30 to 120 days before departure depending on the operator. Book in advance for the best seat selection and lowest available fares.
Passengers are advised to arrive at the station at least 30 minutes before the scheduled departure time to locate the correct platform and coach.
Reserved seating
Standard seating, most affordable class
Book KTX-Sancheon Seoul–Busan tickets at letskorail.com, the official Korail portal. Compare fares and seat availability before booking. Online booking typically opens 30 to 90 days before departure.
Book NowVisit any Korail booking office in person. Staff can help with seat selection, group bookings, and special assistance. Book early for popular departure times and holidays.
Contact Korail for schedule information, delay updates, and booking assistance via their official website or station helpdesk.
Visit KorailKTX-Sancheon Seoul–Busan departs at 06:05 and arrives at the final destination at 08:42. Total journey time is approximately 2h 37m. Always verify current timings with Korail before travelling.
KTX-Sancheon Seoul–Busan fares start from approximately 11,700 (economy class). Book at letskorail.com for the latest prices.
Book KTX-Sancheon Seoul–Busan tickets at letskorail.com, the official Korail booking portal. Tickets are also available at station booking offices. Book in advance for popular routes and holiday periods.
KTX-Sancheon Seoul–Busan makes 5 stops. The route starts at Suseo Station and ends at Busan Station. Major intermediate stops include Dongtan Station, Daejeon Station, Dongdaegu Station.
Check the running days shown in the hero section on this page. Some routes run daily, others run on selected days only. Always verify the current running schedule on the Korail website or app before booking.
Opens Korail official booking site