Osan sits on South Korea's Gyeongbu Line between Suwon and Pyeongtaek, giving the city a practical role in the Seoul metropolitan and central Korean rail network. Osan has one main intercity train station, Osan Station, and passenger services are operated by Korail. The city is not a high-speed rail stop, but it connects with major hubs where KTX and SRT services are available.
Trains from Osan are mainly conventional intercity and regional services, including Mugunghwa, ITX-Saemaeul, and selected Nuriro trains depending on the timetable. Osan Station handles northbound services toward Seoul and Suwon, plus southbound services along the Gyeongbu corridor toward Pyeongtaek, Cheonan, Daejeon, and beyond. Travelers using bullet train services typically transfer at nearby larger stations such as Suwon, Seoul Station, or Suseo.
Rail routes from Osan run north toward Seoul, Yeongdeungpo, and Suwon, and south toward Pyeongtaek, Cheonan, Daejeon, Daegu, and Busan on the conventional main line. Train tickets for Osan are useful for regional travel in Gyeonggi Province and for connections into the national Korail network. Book trains from and to Osan online at Rail Monsters.