The cheapest way to get from Tokyo to Mount Fuji in 2026 is the Highway Bus (Chuo Highway Bus). Departing from the Shinjuku Expressway Bus Terminal (Busta Shinjuku) or Tokyo Station, the one-way fare to the Kawaguchiko area typically costs around 2,200 yen (approx. $15 USD) and takes about 2 hours. This is significantly cheaper than the direct "Fuji Excursion" train, which costs over 4,000 yen. For those with a JR Pass, the cheapest "inclusive" way is to take the JR Chuo Line to Otsuki and then pay the separate private Fuji-Kyuko line fee (approx. 1,170 yen) to reach Kawaguchiko. However, for most 2026 travelers without a pass, the bus is the undisputed budget champion. Pro tip: book your bus tickets at least a week in advance online, as the 2026 tourist surge means these budget seats sell out quickly, especially during the cherry blossom (April) and autumn leaf (November) seasons.