Onishi

Weekday departures: 34/day in the available timetable data · Sat & holiday departures: 34/day in the available timetable data

Earliest / latest departure in the available data (weekday): 6:12 / 22:33

Busiest hour in the available data: 6:00–7:00 (3)

0:00 ─ 23:00

Figures are typical departures in the timetable data, not a live service count.

Timetable data as of 2 May 2026.

The timetable data is incomplete for some or all lines at this station, so the weekday and Sat & holiday figures are departures in the available timetable data, not totals.

Lines where the timetable data is incomplete:

• Yosan Line: one direction only
• Yosan Line: timetable covers only part of the line

• Yosan Line: Namikata ⇄ Iyo-Kameoka

Japanese Government Railways opened the station on 1 December 1924 under the name Iyo-Ōi (伊予大井), then the terminus of the San'yo Line extended westwards from Imabari. Iyo-Ōi became a through-station on 21 June 1925 when the line was further extended to Kikuma. On 1 October 1959, by then operated by Japanese National Railways, it was renamed Ōnishi Station. With the privatisation of JNR on 1 April 1987 control passed to JR Shikoku, and it now carries station number Y43 on the Yosan Line, served only by local trains between Iyo-Saijō and Matsuyama.