The KTX (Korea Train Express) and Mugunghwa trains service the route from Sejong to Samtan. While the KTX operates at speeds of up to 300 km/h, it may take approximately 2 hours for this journey. On the other hand, the Mugunghwa, a slower option, runs at speeds between 80 and 120 km/h, taking around 4 hours to complete the trip. Passengers can choose between these two services based on their schedule and preferences.