The program for "free" trains in Spain was a specific government initiative launched in late 2022 and extended through 2023 to combat inflation. To benefit, travelers had to register for a "Cercanías" or "Media Distancia" multi-journey pass via the Renfe app or at a station ticket machine. While the pass required a deposit of €10 or €20, this deposit was fully refunded if the passenger completed at least 16 journeys within a four-month period. The program covered local commuter trains and regional "mid-distance" routes, but it did not apply to high-speed (AVE) or long-distance tickets. In 2026, while the original "free" program has evolved, the Spanish government frequently introduces similar seasonal subsidies for young people (Verano Joven) and frequent commuters. To see if a current version of this discount is available for your trip, check the "Abonos Gratuitos" section on the official Renfe website, as these social aid programs are often renewed annually.