Traveling from Okayama to Kitakyushu, passengers can choose between the Sanyo Shinkansen and the Limited Express Sonic. The Sanyo Shinkansen, particularly the Nozomi service, reaches speeds of up to 300 km/h (186 mph) and covers the journey in approximately 1 hour and 10 minutes with minimal stops. The Hikari service, while also on the same line, takes a bit longer, around 1 hour and 30 minutes, due to additional stops at stations such as Fukuyama and Kanda.
On the other hand, the Limited Express Sonic provides a scenic route with a travel time of about 2 hours and 30 minutes, making several stops along the way, including major cities like Kurume. This service operates at a slightly lower speed, typically between 120 to 140 km/h (75 to 87 mph).
Both services are equipped with comfortable seating and amenities, with the Shinkansen generally offering a faster and more streamlined experience. The Sanyo Shinkansen is ideal for those prioritizing quick transit, while the Limited Express Sonic may appeal to those who wish to explore more regional destinations at a leisurely pace.