On the Yatsushiro to Izumi route, the primary train service is the Limited Express, commonly known as the "Kinkai". This train operates with a speed range of 85 to 120 km/h (53 to 75 mph) and typically takes about 1 hour and 15 minutes to cover the distance between these two cities. The Kinkai Limited Express provides a comfortable travel experience, with reserved and non-reserved seating options available to cater to different preferences.
This service makes several stops, allowing travelers to enjoy access to various local destinations along the way. Onboard, passengers are provided with amenities such as refreshments and spacious seating, making it a suitable choice for both locals and tourists. Although not high-speed in the manner of Shinkansen services, the Limited Express offers an efficient means of travel between Yatsushiro and Izumi.