As of early 2026, a standard one-way second-class ticket for the train from Interlaken Ost to Lauterbrunnen costs approximately CHF 8.20 (roughly $9.50 USD). This scenic 20-minute journey is operated by the Berner Oberland Bahn (BOB). If you hold a Swiss Half Fare Card, the price is reduced to CHF 4.10. For those using a Swiss Travel Pass or a Jungfrau Travel Pass, the journey is fully covered at no additional cost. Tickets can be purchased at the SBB ticket machines at Interlaken Ost, via the SBB mobile app, or directly at the station counter. Trains typically run every 30 minutes. It is important to ensure you board the correct section of the train, as the BOB trains often "split" at Zweilütschinen, with one half heading to Lauterbrunnen and the other to Grindelwald. Because this is a regional line, seat reservations are neither required nor possible, and the fare remains consistent regardless of how far in advance you book, making it a very flexible leg of any Alpine itinerary.