To travel from Tokyo to Osaka using the Japan Rail Pass (JR Pass) in 2026, you primarily use the Tokaido Shinkansen. Since the major price hike in late 2023, the JR Pass remains a significant investment, so you should ensure you are maximizing its value. To catch the train, head to Tokyo Station or Shinagawa Station. While the JR Pass covers the Hikari and Kodama trains for free (taking about 3 hours), you can now pay a supplemental "Nozomi Upgrade" fee to use the faster Nozomi trains, which reach Shin-Osaka in just 2.5 hours. In 2026, it is highly recommended to use the JR-West or JR-Central reservation websites to book your seats in advance, especially if you have "oversized baggage," which requires a specific seat reservation. Once you arrive at Shin-Osaka Station, you can use your JR Pass to transfer to local JR lines like the Kyoto Line or the Osaka Loop Line to reach your final destination within the city.