Tsurumaki-Onsen

Known weekday departures: 221/day · Known Sat & holiday departures: 222/day

First / last known departure (weekday): 5:13 / 24:22 (00:22 next day)

Busiest hour (known departures): 7:00–8:00 (15)

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 4 July 2026 (retrieved in spring/summer 2026).

• Odakyu Odawara Line: Isehara ⇄ Tokaidaigaku-mae

The station opened on 1 April 1927 as Tsurumaki Station on Odakyu's new Odawara Line, taking the name Tsurumaki-Onsen on 15 March 1930 at the request of the local hot-spring association. In October 1944 wartime authorities ordered it back to plain Tsurumaki, viewing the 'onsen' suffix as frivolous during austerity; the spa name was not restored until 1 April 1958. Through later years semi-express and rapid-express services successively added the station to their stopping patterns. Station numbering as OH37 was introduced in January 2014. A relocated south exit with elevators and escalators entered service on 23 June 2018.

Tsurumaki-Onsen's name was forcibly changed to plain 'Tsurumaki' during World War II because authorities considered the word 'onsen' too leisurely for wartime, and it took until 1958 to restore it.