Yes, you can buy Jungfraujoch tickets in person at any major Swiss Federal Railways (SBB) station, as well as at the "Jungfrau Region" stations like Interlaken Ost, Grindelwald, or Lauterbrunnen. However, doing so in 2026 is risky during the peak season (May to October). Because the Jungfrau Railway has a limited capacity, they highly recommend (and sometimes require) a mandatory seat reservation (CHF 10) for specific time slots. If you wait to buy in person on the day of travel, the most popular morning time slots may already be sold out, or you may be forced to wait for a later train. To ensure you get to the "Top of Europe" at your desired time, it is best to buy tickets online through the official Jungfrau.ch portal or via the SBB app. If you have a Swiss Travel Pass, you still need to present it at the ticket window (or online) to receive your discounted fare, as the pass only covers travel up to Grindelwald or Wengen for free.