Sintra Bus 434 Schedule The 434 departs every 15 minutes, from 8:50am to 7:50pm in the summer and from 8:50am to 7:00pm at other times of the year. It takes less than 15 minutes to reach the Moorish Castle, and if you want to go straight from the station to Pena Palace you're there in less than 20 minutes.

The ride on Bus 434 (the Circuito da Pena) from Sintra Station to the entrance of Pena Palace typically takes between 15 and 25 minutes, depending on traffic and the time of year. However, this is just the "moving" time. In 2026, Sintra is more popular than ever, and you must account for the significant "waiting time" at the bus stop. During peak tourist hours (10:00 AM to 3:00 PM), the queue for the bus can be 30 to 45 minutes long. Once you are on the bus, the route is extremely winding and steep as it climbs through the misty forests of the Sintra Mountains; it is a "one-way" loop that also stops at the Moorish Castle before reaching Pena Palace. For a stress-free trip, it is highly recommended to take one of the first buses of the morning (around 9:15 AM) to avoid the mid-day congestion. The bus is the most cost-effective way to reach the palace, as private cars are restricted from much of the mountain road, and Tuk-Tuks, while faster, are significantly more expensive.