Ōfunato Line
Sakari Station opened on 19 September 1935 as a station on the Ōfunato Line. The Iwate Development Railway Company Hikoroichi Line connected to the station on 21 October 1950 and the Akasaki Line from 21 June 1957. The Minami-Rias Line began operations on 1 March 1970. The Minami-Rias Line was privatized to the Sanriku Railway Company on 1 April 1984, and the Ōfunato Line was privatized on 1 April 1987, becoming part of JR East.