France's SNCF operates TER (local) services on the Portet-Saint-Simon–Puigcerdà railway (from Toulouse-Matabiau) and on the Ligne de Cerdagne known as Train Jaune (from Villefranche-de-Conflent, with connections to Perpignan).

Spain's Renfe Operadora runs Rodalies de Catalunya trains from L'Hospitalet de Llobregat on the Barcelona commuter rail line R3.

SNCF also runs Intercités de Nuit night trains to Paris.

The line to Toulouse-Matabiau is 1,435 mm (4 ft 8+1⁄2 in) standard gauge; the line to Barcelona is 1,668 mm (5 ft 5+21⁄32 in) Iberian gauge; and the Cerdagne line to Villefranche-de-Conflent is 1,000 mm (3 ft 3+3⁄8 in) metre gauge.

Services from Latour-de-Carol are to Toulouse, Barcelona and Villefranche-de-Conflent where one can change for Perpignan.