The train service connecting Guarda to Sabugal primarily operates on regional trains, specifically the Alfa Pendular (AP) and Intercidades (IC) services. The Alfa Pendular operates at speeds up to 220 km/h (137 mph) and generally provides a faster journey with fewer stops, making it an efficient choice for travelers. The travel time on this route is approximately 1 hour, depending on the schedule and specific service used. On the other hand, the Intercidades train, while slightly slower with speeds reaching up to 200 km/h (124 mph), offers a more scenic route and additional stops at various small towns, enhancing the travel experience by providing access to local sights. Both services feature comfortable seating and facilities such as restrooms, ensuring an agreeable travel experience. The Alfa Pendular is highly recommended for those looking for speed, while the Intercidades is suitable for travelers interested in exploring more along the way.