Since Osaka is located within Japan, this question usually refers to the journey to Tokyo, the nation's capital and most frequent destination from Osaka. The Shinkansen (bullet train) journey between Shin-Osaka and Tokyo Station is one of the fastest and most efficient in the world. The Nozomi, which is the fastest service, covers the 515-kilometer distance in approximately 2 hours and 21 to 30 minutes. The Hikari service takes about 2 hours and 53 minutes, while the Kodama (which stops at every station) takes nearly 4 hours. In 2026, these trains remain the gold standard for travel, departing as frequently as every few minutes during peak hours. If you are using a Japan Rail Pass, you can ride the Hikari and Kodama for free, or pay a supplemental fee to access the Nozomi. With speeds reaching 285 km/h (177 mph), the Shinkansen offers a seamless experience that is significantly faster than flying when factoring in airport transfers and security wait times, making it the preferred choice for both business travelers and tourists.