Osong is a strategic rail junction in South Korea, located in Cheongju and positioned where the Gyeongbu high-speed corridor connects with the Honam high-speed line. The city area is served mainly by Osong Station, with KORAIL and SR operating long-distance passenger services through the same rail hub.
Trains from Osong include KTX high-speed services operated by KORAIL, SRT high-speed services operated by SR, and selected conventional rail services on the Chungbuk Line. Osong Station is the primary train station for high-speed rail in the Cheongju area, while nearby Cheongju Airport Station serves rail access toward Cheongju International Airport on regional services.
Rail routes from Osong run north toward Seoul and Suseo, south toward Daejeon, Daegu, Ulsan, and Busan, southwest toward Iksan, Gwangju, Mokpo, and Yeosu, and east-west across Chungcheongbuk-do through the Chungbuk Line. Book trains from and to Osong online at Rail Monsters.