The route from Higashihiroshima to Sanyo-Onoda is served by the San'yō Shinkansen and local services. Notably, the fastest option is the Kodama Shinkansen, which travels at speeds of up to 240 km/h (149 mph). The journey takes approximately 1 hour and 45 minutes with a few stops along the way, including cities such as Hiroshima and Yoshitomi.
In contrast, local trains operated by JR West offer slower service, with typical speeds around 100 km/h (62 mph) and a journey time of over 2 hours, making more frequent stops.
Both services provide seating in Ordinary and Green class, but if speed is your priority, the Kodama is preferable. The local train offers a more scenic view of the region, ideal for travelers looking to explore more of the area.