Isahaya Station

It is also the eastern terminus of the JR Ōmura Line, 36.2 km from the starting point at Haiki and the western terminus and starting point for the 43.2 kilometer third-sector Shimabara Railway Line.

The private Kyushu Railway, had opened a track from Tosu to Saga by 5 May 1895, and thereafter expanding southwards in phases, as part of the construction of a line to Nagasaki.

Separately, a track was laid from Urakami (then known as Nagasaki) north to Nagayo, which opened on 22 July 1897 as the terminus.

Isahaya was opened on the same day as an intermediate station on the track between Ōmura and Nagayo.

[6][9] With the privatization of Japanese National Railways (JNR), the successor of JGR, on 1 April 1987, control of the station passed to JR Kyushu.

The old station building, a timber structure in western style built in 1935, was noted for its role as a receiving station for relief trains carrying the injured from the atomic bomb at Nagasaki.

This would be replaced by a new building scheduled to be completed in 2020, in time for the commencement of Shinkansen services to the station.