- up to 6 years old (in international trains on the territory of Ukraine up to 5 years old) children travel free of charge without providing a separate seat. The ticket is not issued. To board the train, you must present the original birth certificate of the child. When traveling with 2 children under the age of 6 (5 on international trains) per adult passenger, a ticket for a separate seat must be purchased for the second child; - from 6 to 14 years old (on international trains from 5 to 10 years old) a child ticket is issued with a discount of up to 25%; - from 14 years old (on international trains from 10 years old), a document is issued at full cost.