How many miles from Osaka to okinawa?

The railways are the best way to get around Japan. Osaka (Shin-Osaka Station) and Hiroshima (Hiroshima Station) are connected with each other by the JR Sanyo Shinkansen. Nozomi and Mizuho trains require about 80 minutes for the journey, while Sakura trains require a few minutes more.

By most it will require 4 hours 2 mins.