Accordingly, dynamic tariff pricing has been introduced, which takes into account the change in the ticket price depending on the date of purchase and the load of the trains. 

In the first stage, the pilot mode of dynamic pricing was introduced to two interregional and suburban routes. They are routes Almaty - Astana - Nurly zhol #3/4, Astana 1 - Saryagash #085/086. And from March 8, Astana-Karagandy will be included in route #853/854. Later, the new order will include trains running on all social connections.   

Tariff price table including dynamic pricing in the "-25%" and "+25%" corridors was introduced in the mentioned trains. Thus, a passenger who buys a ticket early has the opportunity to buy it at a price four times lower than the base price. As the date of departure of the train approaches and the demand for a particular route increases, the ticket price will increase. 

Tickets for the above trains can be purchased from January 23, 2018.  

Source : https://www.gov.kz/memleket/entities/mps/press/news/details/25947?lang=kk