The KTX high-speed train from Mongtan to Yeonsan departs as early as 5:45 AM, with the last train leaving around 8:50 PM. Key stations along the route include Cheongju and Gwangju. This journey takes approximately 2 hours with KTX, making it a convenient option. Ticket prices start from ₩37,000 (approximately $31 USD) for standard class, with options for First Class available for enhanced comfort. To secure your seat, reserve a seat in advance through online booking, and check the latest timetable for your travel plans.