Mount Fuji can be seen from the Tokaido Shinkansen between Tokyo and Osaka. When coming from Tokyo, the mountain appears on the right side of the train and is best viewed around Shin-Fuji Station, about 40-45 minutes into the journey. The best views can be enjoyed from the window-side seat F (or seat D in Green Cars).

You can see Mount Fuji from the Tokaido Shinkansen roughly 45 minutes after departing Tokyo (heading toward Osaka/Kyoto) or about 2 hours after departing Osaka (heading toward Tokyo). The best viewing window occurs when the train passes through the Shizuoka area, specifically around Shin-Fuji Station. To ensure a view, you must sit on the correct side: if you are traveling west from Tokyo, book Seat E (the window seat on the right); if traveling east from Osaka, book Seat A (the window seat on the left). The mountain is visible for a few minutes as you cross the Fuji River. It is important to note that visibility is highly weather-dependent; Fuji is notoriously "shy" and often obscured by clouds or haze. For the best chances, aim for a morning train during the winter or early spring, when the air is driest and the sky is clearest. Even on a sunny day, the peak may be hidden, so check a "Fuji visibility forecast" before your trip to manage expectations for this iconic but elusive sight.