You must purchase your ticket from Caltrain ticket machines
There are no physical ticket sales on the train. Having that said if you have an app you can buy ticket from anywhere but keep in mind you should buy ticket before you board.
You buy your tickets at the cal train ticket machine , peices vary depending on the zone you are travelling...
What are tix?
No
You have to the tickets at the kiosk, not on the train.
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