The route from Santo Tirso to Trofa is served primarily by the regional Comboios de Portugal (CP) services. These trains operate at speeds ranging from 80 km/h to 100 km/h (50 to 62 mph), making this journey approximately 20 minutes long. The train type typically used is the suburban service, providing frequent stops within the local region. While there are no high-speed trains on this route, the regional trains offer reliable service between these two cities, connecting residents and visitors alike. With an average frequency of 30 minutes between services, travelers can expect a steady flow of trains throughout the day, ensuring flexibility in travel times.