KTX train tips: how to book cheap tickets to Busan from Seoul

The KTX from Seoul to Busan takes about 2 hours 15 minutes on the fastest trains. Standard seat costs around ₩59,800. How to save money: 1. Book early — Up to 1 month ahead on Korail app/website 2. Youth discount — 20% off if you're under 26 with student ID 3. Off-peak hours — Weekday morning trains are cheaper 4. Standing tickets — ₩15,000 cheaper, but you stand the entire ride 5. Korail Pass — 3-day pass ₩165,000, 5-day pass ₩244,000 (foreigners only). Worth it if doing 3+ long-distance trips Booking: Download the 'Korail Talk' app (English available) or use the official Korail English website. Foreign credit cards accepted online. At the station, the automated ticket machines accept international cards too.