Traveling from Akashi to Iwakuni involves using the Sanyo Shinkansen and the local JR San'yō Main Line. The fastest option is the Nozomi Shinkansen, which can reach speeds of up to 300 km/h (186 mph) on the Shinkansen segment. However, this high-speed service does not cover the entire route, necessitating the transfer to the local line. The Nozomi takes approximately 1 hour and 45 minutes to reach Iwakuni, including a short transfer wait.
Alternatively, travelers may opt for the Hikari Shinkansen, which runs slightly slower, reaching speeds of up to 285 km/h (177 mph). The Hikari typically extends the travel time to about 2 hours and 15 minutes due to additional stops. For those preferring a direct travel option, the local JR San’yō Main Line operates slower services, averaging speeds of around 90 km/h (56 mph), taking approximately 2 hours and 30 minutes for the whole journey.
Both train services provide comfortable seating, with the option for Green Class for additional amenities such as wider seats and extra legroom.