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." As a special service, it is a premium service designed for higher-comfort travel on its corridor.
KTX-Sancheon Seoul–Busan runs on every day of the week, with the timetable above showing the scheduled departure time at each intermediate stop. The full route includes 5 stops with a total scheduled time of 2h 37m, averaging out to approximately 30 minutes between consecutive stations once dwell time is taken into account. Major intermediate stops along the route include Dongtan Station, Daejeon Station, Dongdaegu Station, providing passenger interchange points with regional and local services where available.
KTX-Sancheon Seoul–Busan offers 2 travel classes: Normal, Economy. The lowest published fare is KRW 11,700 for Normal, while the highest-class fare is KRW 15,000 for Economy. Higher-class fares typically include wider seating, better climate control, and on many long-distance services include meals or refreshments. Travel class fare differences also reflect coach configuration — for example sleeper berths convert to flat beds for overnight travel, while seated coach classes use forward-facing reclining seats arranged 2+2 or 2+1 across the aisle. Check the per-class fare table on this page for the current published price by class.
Tickets for KTX-Sancheon Seoul–Busan are sold by Korail through the official booking portal at letskorail.com. Online booking typically opens between 30 and 180 days before departure depending on the operator and service type. Booking early gives access to the cheapest advance discount fares which can be 30–80% cheaper than walk-up tickets at the station. Tickets are also available at station booking offices and from authorised travel agents and ticket resellers. Most operators accept payment by credit card, debit card, and digital wallet.
On the day of travel, arrive at the originating station at least 30–45 minutes before the scheduled departure time. This gives time to locate the correct platform (platform number is announced on station information displays 20–60 minutes before departure), find your reserved coach (coach numbers are marked along the platform edge at major stations), and board with your luggage. Always cross-check the platform number against your e-ticket or seat reservation before boarding — multiple trains can depart within a short window from adjacent platforms during peak periods.
This KTX-Sancheon Seoul–Busan page is part of the TrainsTracking South Korea timetable collection covering passenger rail services across the Korail network. Schedule data is verified daily against the official operator timetable, and fare information reflects the most recent published tariff. TrainsTracking is an information platform and does not process bookings or payments — all ticket purchases are completed directly through letskorail.com. For real-time delay information, platform changes, and same-day cancellations, always check station displays or the official operator app immediately before travel.
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. The total scheduled journey time is approximately 2h 37m. Times use the official South Korea timetable and are local times at each stop. Always verify with Korail on the day of travel as schedules can change due to engineering work or seasonal adjustments.
KTX-Sancheon Seoul–Busan fares start from approximately KRW 11,700 for Normal class and go up to KRW 15,000 for Economy. Higher-class fares include wider seating, climate control, and on long-distance services may include meals. Book through letskorail.com for the latest published fares and to check current seat availability.
Tickets for KTX-Sancheon Seoul–Busan are sold through letskorail.com, the official Korail booking platform. Online booking opens between 30 and 180 days before departure depending on operator. Book in advance for the cheapest available fares. Tickets can also be purchased at station booking offices during opening hours, typically 08:00–20:00 daily.
KTX-Sancheon Seoul–Busan makes 5 scheduled stops along its route. The journey starts at Suseo Station and ends at Busan Station. Major intermediate stops include Dongtan Station, Daejeon Station, Dongdaegu Station. The full stop sequence with arrival and departure times is shown in the table above.
KTX-Sancheon Seoul–Busan running days are shown in the hero section at the top of this page (badges indicate which days of the week the train operates). Some long-distance services run daily while others operate only on specific days (typically weekday-only or weekend-only). Operating days can change with the annual timetable revision (usually December) so verify current running days with Korail before booking, particularly for trips planned more than 6 months ahead.
Yes, letskorail.com typically accepts international debit and credit cards from major card networks. Some operators require a local phone number for SMS confirmation — check the booking requirements before starting your reservation. Booking platforms display fares in the local currency of the operator.
KTX-Sancheon Seoul–Busan offers 2 travel classes: Normal, Economy. Economy or standard classes have reserved numbered seats at the lowest fare. Premium classes (business, first class, sleeper) add wider seats, climate control, and on overnight services berths for lying flat. The fare table on this page lists current published prices for each class.
Platform numbers are not pre-published — they are announced on station information displays between 20 and 60 minutes before scheduled departure. Arrive early at the originating station to check the platform allocation displays. At larger stations, platform numbers can also be viewed on the operator's app. If the train is delayed or rescheduled, the platform may change at short notice — always verify against station displays immediately before boarding.
Opens Korail official booking site