Distance from Seoul to Busan

Seoul to Busan Distance

• Straight-line: ~253 miles (407 km)
• By KTX high-speed rail: ~2.5 hours (417 km track)
• By car (expressway): ~4.5–5.5 hours (400–450 km)
• By bus: ~4.5–5 hours
• By air (Gimpo → Gimhae): ~1 hour flight + airport time

Seoul (northwest) and Busan (southeast) are South Korea's two largest cities, connected by the Gyeongbu corridor—the country's main transport artery.