Omorimachi

Weekday departures: 218/day · Sat & holiday departures: 3/day in the available timetable data

First / last departure (weekday): 4:59 / 24:19 (00:19 next day)

Busiest hour: 16:00–17:00 (13)

0:00 ─ 23:00

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

Timetable data as of 5 May 2026.

Weekday figures cover every line at this station. For Saturdays and holidays the timetable data is incomplete for some or all lines, so those figures are departures in the available timetable data, not totals.

Lines where the timetable data is incomplete:

• Keikyu Main Line: no Saturday, Sunday or holiday timetable

• Keikyu Main Line: Heiwajima ⇄ Umeyashiki (Tokyo)

Ōmorimachi Station's lineage starts on 1 February 1901, when the Keihin Electric Railway opened a stop named San'ya on this section. It moved to new track alignment in 1906 and was later renamed Ōmori-San'ya. Following heavy wartime damage, services were suspended on 1 July 1945 and the station was formally abolished on 1 June 1949. It was rebuilt under the present name Ōmorimachi and reopened on 15 December 1952. The platform was lengthened for six-car trains in March 1982. Grade-separation work raised the up platform on 16 May 2010 and the down platform on 21 October 2012. Platform-edge doors entered service on both tracks on 13 December 2025.

Ōmorimachi was the last station on the Keikyu Main Line to retain its track-level pedestrian crossing — it was finally removed on 28 April 2007 as part of the line's grade-separation programme.