The main service operating on the Maibara to Fukuoka route is the Shinkansen, specifically the Sanyo Shinkansen line. This line features the Mizuho and Sakura trains, both of which provide fast and reliable connections between these two cities. The Mizuho train is the fastest option, capable of reaching speeds up to 300 km/h (186 mph) and completing the journey in about 2 hours and 30 minutes. It offers limited stops, making it an efficient choice for direct travel. On the other hand, the Sakura train, while slightly slower with speeds up to 240 km/h (149 mph), takes approximately 3 hours as it makes more stops, allowing passengers the chance to visit towns along the way, such as Okayama and Kurashiki.
Both trains feature a variety of seating options, including Ordinary and Green class, catering to different preferences. Onboard amenities such as spacious seating and food service add to the travel experience. The Mizuho is preferred for those looking to minimize travel time, while the Sakura offers a good balance for passengers wishing to explore more along this picturesque route.