If you are travelling by Eiger Express, which is the fastest route, will take about 1 hour and 36 minutes to get from Interlaken to Jungfraujoch.

To get from Interlaken to the Jungfraujoch—the "Top of Europe"—as fast as possible, you should use the Eiger Express tricable gondola. The fastest route begins at Interlaken Ost station, where you take a 20-minute train ride to Grindelwald Terminal. From there, you board the Eiger Express gondola, which whisk you up to the Eigergletscher station in just 15 minutes, cutting nearly 47 minutes off the traditional cogwheel train route from Lauterbrunnen. Once at Eigergletscher, you transfer to the final leg of the Jungfrau Railway, a 30-minute cogwheel train ride through the tunnel inside the Eiger mountain to reach the Jungfraujoch station at 3,454 meters. The total travel time using this modern route is approximately 1 hour and 30 minutes from Interlaken Ost. It is highly recommended to book your seat reservations in advance, especially during the peak summer months, as this route is popular for its speed and breathtaking views of the Eiger North Face that were previously only accessible to expert mountain climbers.