The train service from Caminha to Santarem is primarily operated by the Alfa Pendular and Intercidades trains, which provide different travel experiences along this picturesque route. The Alfa Pendular service is the faster option, reaching speeds of up to 220 km/h (137 mph) and completing the journey in approximately 3 hours and 45 minutes with fewer stops, ensuring a swift connection between these two cities. In contrast, the Intercidades trains also cover this route but take about 4 hours and 30 minutes, making more stops along the way, including key locations such as Viana do Castelo and Torres Vedras.
Both services offer comfortable seating options, with the Alfa Pendular featuring more modern amenities and additional legroom in first class, while Intercidades provides solid comfort for travelers preferring a traditional experience. Passengers can enjoy scenic views of the Portuguese landscape regardless of which service they choose.