Yes, the Swiss Travel Pass fully covers the journey between Lucerne and Interlaken in 2026. This route is part of the famous Luzern-Interlaken Express, which is the first leg of the GoldenPass Line. Since the Swiss Travel Pass provides unlimited travel on the entire Swiss Travel System (including trains, buses, and boats), you do not need to pay any additional fare to board this scenic train. The journey takes approximately 1 hour and 50 minutes and offers breathtaking views of Lake Brienz and the Brünig Pass. While the ticket is free for pass holders, seat reservations are optional but highly recommended during the peak 2026 summer season (June to August) to ensure you have a panoramic window seat. If you have the pass, you can simply hop on any scheduled train on this route and show your digital QR code to the conductor. Additionally, the pass covers the boats on Lake Thun and Lake Brienz once you arrive in Interlaken, making it an incredibly high-value tool for exploring the Bernese Oberland region.