KTX Trains from Seoul to Busan
KTX high-speed trains connect Seoul to Busan, one of the most popular routes in the country. You will reach Busan in less than 3 hours traveling by KTX trains, while the longest ride will take about 5 hours and 22 minutes. The cities are connected by Gyeongbu line, offering some of the most scenic views in the country. Of course, you can buy Economy/Business class tickets at the train station, but the smartest choice is, of course, booking online. This way, you save time and can book Seoul to Busan tickets for up to a year in advance.