Yes, all trains operating the popular route between Lisbon and Porto are equipped with clean and accessible toilets (WCs). This journey is primarily served by two types of trains: the high-speed Alfa Pendular (AP) and the Intercidades (IC). On the Alfa Pendular, which is the premium option reaching speeds of 220 km/h, you will find modern restrooms at the ends of almost every carriage. These are generally well-maintained and include features like touchless sinks and baby-changing tables. The Intercidades trains also have toilets in every car, though they may feel slightly more "traditional" in design compared to the high-speed fleet. On both trains, the restrooms are free for passengers to use throughout the roughly 3-hour journey. In 2026, the Portuguese rail operator (CP - Comboios de Portugal) continues to prioritize passenger comfort on this "backbone" route, ensuring that amenities like Wi-Fi, power outlets, and functional restrooms are standard to compete with domestic flights and bus travel.