Do I have to purchase a ticket for my infant?
Infants under 8 days old are not permitted to travel. Infants 8 days to 1 year old are required to travel with an adult over 12 years old. They may travel in the lap of the adult, or in a child safety seat. Flat rate of JPY 1,500 (one way per child) if they are seated in the adult’s lap, or an adult fare ticket must be purchased if the infant will be seated in a child safety seat. One adult may accompany up to two infants.