The journey from Kitakyushu to Iwakuni is primarily served by the San'yō Shinkansen and local JR trains. The Nozomi and Mizuho services on the San'yō Shinkansen connect Kitakyushu to Iwakuni with a travel time of approximately 1 hour and 45 minutes, reaching speeds of up to 300 km/h (186 mph) on certain segments. However, this high-speed option is limited to select trains, and others may include transfers at major stations such as Kokura or Hiroshima. For those opting for local train services, the journey may take around 3 hours, depending on wait times and the number of transfers required. The local JR trains provide a scenic, albeit slower, ride, showcasing the beautiful landscapes of the region. Though trains like the Tsubame and Sakura also provide service between these two cities, they do not reach the same speeds as the Shinkansen. While the San'yō Shinkansen offers a faster and more direct route, local trains can bring travelers closer to smaller towns and attractions along the way.