Traveling between these two iconic Portuguese towns in 2026 is most efficiently done via the Carris Metropolitana bus line 1620. The bus departs from the Portela de Sintra station and takes approximately 35 to 45 minutes to reach the Cascais bus terminal. Tickets are affordable (usually around €2–€4) and can be purchased from the driver or via a contactless card. For those seeking speed, a taxi or rideshare (Uber/Bolt) is a popular alternative, taking about 15–20 minutes and costing between €15 and €25 depending on demand. While there is no direct train between Sintra and Cascais (you would have to go back through Lisbon), the bus route is incredibly scenic, passing through the beautiful foothills of the Sintra-Cascais Natural Park. In 2026, some travelers also opt for the "Yellow Bus" tourist circuit, which connects the main sights of both towns while providing historical commentary along the journey.