However, many trains terminate at various locations on the line such as Jukjeon, Gosaek, and Oido.

Trains travel along the Suin (Incheon-Suwon), Bundang (Suwon-Wangsimni), and Gyeongwon (Wangsimni-Cheongnyangni) lines.

Hagik station is planned to open between Songdo and Inha University in 2026.

In addition, a connection line is under consideration at Suwon that will allow KTX trains to run between the Gyeongbu high-speed railway and Incheon Station via the Suin Line by 2025.

Korail operates a variety of express "rapid" (급행) trains for regional services on the Suin-Bundang Line during rush hours.