Ainokaze Toyama Railway
Tomari Station is served by the Ainokaze Toyama Railway Line and is 95.4 kilometres from the starting point of the line at . Many through services from the neighbouring Echigo Tokimeki Railway Nihonkai Hisui Line terminate at Tomari, with both Echigo Tokimeki Railway trains and Ainokaze Toyama Railway trains using Platform 2 to provide a same-platform transfer.