It is part of the historical Tampere–Vaasa railway; its other segments as known today include Tampere–Haapamäki and Seinäjoki–Vaasa.

[1] The Haapamäki–Seinäjoki railway stretches approximately 117.9 kilometres (73.3 mi) long, connecting the regions of Central Finland and South Ostrobothnia.

It consists of one track for its entire length, and is unelectrified.

[3] VR Group operates two daily regional train services in each direction on the route Jyväskylä–Seinäjoki, as well as two additional services per direction between Seinäjoki and Ähtäri.

On the Haapamäki–Seinäjoki line, these services call in Pihlajavesi, Myllymäki, Eläinpuisto-Zoo, Ähtäri, Tuuri and Alavus.