All About KTX Trains

Discover the speed, comfort, and convenience of KTX trains – your ultimate guide to South Korea's premier high-speed rail network
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KTX and KTX - Sancheon Trains

South Korea boasts a well-developed high-speed railway system, offering comfortable and highly efficient means of travel between the country's capital and other major destinations in short periods.

There are two types of KTX trains, called KTX and KTX-Sancheon which both are operated by Korail. The first KTX was launched in 2004, with high-speed rail lines from Seoul to Busan. KTX-Sancheon began operation on 2010. Now KTX high-speed trains operate along 5 train lines.

It used to take more than 4 hours to reach Busan from Seoul. With advanced KTX trains, this time was reduced to 2 hours and 15 minutes.

The trains are pressure-sealed, which reduces passenger discomfort, especially during tunnel passages. Trains are made of quality materials and triple-glazed glass. The trains are not only fast, but also safe and environmentally friendly. ​

KTX Train Speed

Average speed

305 km/h

Maximum speed
330 km/h


The high-speed KTX train travels at a speed of about 305 km/h, but can reach a maximum speed of 330 km/h. If traveling at a regular top speed, you can reach Busan from Seoul in less than 3 hours. There are 10 or 20 train cars forming the train set, and travelers can choose from two KTX classes.

Inside KTX Train

There is no restaurant car in KTX trains, as the trains are optimized for high capacity. But you can buy food and drinks on board from vending machines. On board, you will find clean interior, comfortable seats and large panoramic windows.

Both classes of the Korea Train Express offer spacious, comfortable seats, have onboard bathroom facilities, vending machines. The main difference between KTX and KTX-Sancheon is that the later has improved seats and installed power plugs in each train seat.

​WiFi is also available onboard KTX trains, for some classes it's free, for others it's for an extra charge.

KTX Train Map

Experience the convenience, eco-friendliness, and speed of train travel as you traverse this enchanting country. From the bustling streets of Seoul to the serene landscapes of Jeju Island, each destination offers its own unique charm and adventure. So, hop aboard and let the rhythm of the rails guide you on an unforgettable Korean adventure!