Sitges is located on the R2 Sud (R2 South) line of the Rodalies de Catalunya, which is Barcelona's commuter rail system. Trains to Sitges depart frequently from three major stations in Barcelona: Estació de França, Passeig de Gràcia, and Barcelona Sants. The journey typically takes between 35 and 45 minutes, making Sitges one of the most accessible and popular day trips from the Catalan capital. Trains generally run every 15 to 30 minutes throughout the day. When looking at the departure screens, you should look for trains with destinations like Vilanova i la Geltrú or Sant Vicenç de Calders, as these are the southern terminuses of the R2 Sud line and will always stop in Sitges. The station in Sitges is conveniently located just a 10-minute walk from the historic center and the main beaches. For those traveling from the Barcelona-El Prat Airport, you must take the R2 Nord to El Prat de Llobregat and transfer to the R2 Sud heading south.