Onuka

Known weekday departures: 8/day · Known Sat & holiday departures: 8/day

First / last known departure (weekday): 6:14 / 21:01

Busiest hour (known departures): 6:00–7:00 (1)

0:00 ─ 23:00

Figures are the departures known from the timetable data, not a count of today's actual service.

Timetable data as of 2 May 2026 (retrieved in spring/summer 2026).

• JR Geibi Line: Dogoyama ⇄ Uchina

Onuka Station opened on 15 June 1935 as the terminus of a Japanese National Railways extension of the Sanshin Line from Tōjō. A further extension to Bingo-Ochiai on 10 October 1936 made it a through station, and the Sanshin Line was absorbed into the Geibi Line on 1 July 1937. Freight handling ended on 1 September 1972 and parcel service on 31 October 1983, when the station was made unstaffed and converted to simple delegated operation. JR West took over at the April 1987 privatisation. In 2001 the second platform and its passing track were removed, leaving a single-track stop and ending the possibility of train crossings between Niimi and Tōjō. The station today is 33.6 km from Bitchū-Kōjiro.