The train service connecting Hiroshima to Sanyo-Onoda is primarily served by the Sanyo Shinkansen, specifically the Kodama and Hikari trains. The Hikari service covers the route with speeds reaching up to 300 km/h (186 mph), completing the journey in approximately 1 hour and 15 minutes, with fewer stops than the Kodama. The Kodama train, on the other hand, stops at more stations along the way, such as Okayama and Akiota, resulting in a longer travel time of around 1 hour and 50 minutes. oN both services, passengers can choose from Ordinary and Green class seating (Economy and First), offering varied levels of comfort. The onboard features include spacious seating and refreshment options, catering to different preferences. While the Hikari provides the fastest option for travelers wishing to reach Sanyo-Onoda quickly, the Kodama allows for a more scenic route with additional stops for exploration.