Passenger services are provided by Transport for Wales as part of the Valley Lines network.

The Low Level station is located on the Coryton Line.

The Monday to Saturday daytime service pattern is six trains an hour southbound to Cardiff Central: two continue to Penarth, three to Barry Island and one to Bridgend.

Northbound six trains an hour run to Caerphilly, with four continuing to Bargoed and two of those going on to Rhymney.

On Sundays, the service pattern is two trains an hour southbound to Cardiff Central and Barry Island, and two an hour northbound to Caerphilly, with one continuing to Rhymney.