In 2026, the train service between Sitges and Barcelona remains one of the most reliable and frequent commuter routes in Spain. Trains on the Rodalies de Catalunya R2 Sud line run approximately every 15 to 20 minutes throughout the day. The journey typically takes between 35 and 45 minutes, depending on whether you disembark at Barcelona Sants, Passeig de Gràcia, or Estació de França. Service begins very early, around 5:30 AM, and continues until shortly after midnight. During peak commuting hours, the frequency can even increase to every 10–12 minutes. Tickets are quite affordable, usually costing around €4 to €6 for a one-way trip, and you can simply purchase them at the station kiosks or use a contactless payment method. This high frequency makes Sitges a perfect base for exploring Barcelona, as you never have to wait long for a ride back to the seaside, even late into the evening after enjoying dinner or a show in the city.