How to Book the KTX in Korea as a Foreigner (2026): Two-Month Booking Window, Korail Pass Prices and Seat Tips
The KTX is Korea's high-speed train, and it is the easiest way to add Busan, Gyeongju, Jeonju or Gangneung to a Seoul trip. Trains are fast, punctual and comfortable, there is no airport-style security, and you can book in English. The only things that go wrong are booking too late for a weekend and getting confused between the two high-speed rail companies. There is also news: from October 1, 2026 , Korean rail tickets go on sale two months before departure instead of one, which makes it much easier to book trains when you book your flights. This guide covers that change, how to book, the Korail Pass and when it is worth it, and what to expect on board. Key facts (October 2026) • Booking opens 2 months before departure (since October 1, 2026; it used to be 1 month) • Book KTX on Korail's foreign-language site or the Korail app; SRT trains are a separate company • Seoul–Busan: about 2.5 to 3 hours, about ₩59,800 standard class • Korail Pass (foreigners only): ₩131,00...