Aioi (Hyogo)

Known weekday departures: 153/day · Known Sat & holiday departures: 153/day

First / last known departure (weekday): 5:22 / 24:28 (00:28 next day)

Busiest hour (known departures): 7:00–8:00 (11)

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 17 April 2026 to 2 May 2026 (latest retrieval in spring/summer 2026): the timetables behind these figures were retrieved on different dates.

• San'yo Shinkansen: Himeji ⇄ Okayama
• JR Sanyo Main Line: Une ⇄ Tatsuno (Hyogo)
• JR Ako Line: Nishi-Aioi

Aioi Station opened on 10 July 1890 as Naba Station, on the Sanyō Railway's westward extension between Tatsuno and Une. The line was nationalised in 1906 and the station was redesignated under the new Sanyō Main Line in 1909. The station was renamed Aioi on 1 October 1942 to match the newly chartered Aioi City. The Akō Line opened from here in December 1951, and the Sanyō Shinkansen platforms were added when the Shin-Osaka–Okayama segment opened on 15 March 1972. Hikari trains served the station from opening until 1997, were dropped, then partly restored in October 2001, and JR West took over the station at privatisation in 1987.

In Japanese gojūon (syllabary) order, Aioi comes first among all railway stations in Japan, a position it shares with the same-named Aioi Station on the Nagaragawa Railway in Gifu Prefecture and the identically pronounced Aioi Station (相老) in Gunma Prefecture. Japan National Railways justified building Shinkansen platforms here by the need for passing moves and long night-time halts under the single-track operation planned for a "night Shinkansen" service; the passing track provided for that purpose, track 13, is at Himeji Station.