Seoul Metro operates a train from Pyeongtaek to Daejeon every 30 minutes. Tickets cost $1 - $2 and the journey takes 2 min. Suseo High Speed Railway also services this route hourly.
How to get from Pyeongtaek to Daejeon
From Pyeongtaek Staion line 1 subway to Jije SRT then train to Daejeon Station. 1 h 1 min ₩15,260. From Pyeongtaek Staion train to Daejeon Station. 1 h 4 min ₩8,248. From Pyeongtaek taxi to Daejeon. 1 h 10 min ₩108,603. From Pyeongtaek drive to Daejeon. 1 h 10 min ₩16,100.