Japan Railways Shinkansen operates a train from Kumamoto to Saga hourly. Tickets cost $23 - $35 and the journey takes 25 min. Japan Railways Limited Express also services this route hourly. Alternatively, Nishitetsu operates a bus from Kumamoto to Saga every 30 minutes. Tickets cost $19 - $40 and the journey takes 2 h 11 min. Nishitetsu also services this route every 30 minutes.
How to get from Kumamoto to Saga
From Kumamoto train to Shin-Tosu then train to Saga. 1 h 1 min ¥4655. From Kumamoto Kotsu Center bus to Fukuoka Airport International Terminal then bus to Saga. 3 h 49 min ¥4999. From Kumamoto taxi to Saga. 57 min ¥25522. From Kumamoto drive to Saga. 57 min ¥1062.