To reach Mt. Fuji from Tokyo in 2026, the most direct and popular option is the Fuji Excursion Limited Express train, which runs from Shinjuku Station directly to Kawaguchiko Station in about 1 hour and 53 minutes. This train is highly convenient as it eliminates the need for transfers, but it is recommended to book in advance as it often sells out. Alternatively, you can take the JR Chuo Line from Shinjuku to Otsuki Station and then transfer to the private Fujikyu Railway for the final leg to Kawaguchiko or Fujisan stations; this route is more frequent and allows you to experience unique themed trains like the Fujisan View Express. If you are heading to the southern side of the mountain (Shizuoka), you can take the Tokaido Shinkansen to Shin-Fuji Station or Mishima Station in under an hour. While the Shinkansen is faster, it drops you further from the popular "Five Lakes" sightseeing areas, so the Fuji Excursion remains the top choice for tourists seeking the most "Instagrammable" views of the peak.