Hello do we have to purchase train tickets prior to departing date or can we purchase tickets at the train station

Lynda you can buy your ticket when you get there, cash, debit, or credit card and simple on screen instructions

You can download the Metrolink App, buy ticket and activate it when you actually want to use it. It'll show in your wallet as a QR code that conductors will scan Alternatively, you can buy there and you'll get a paper ticket

Either or .. but if you download the app you can purchase ticket before or on the train .. easiest way. But you can buy it at the station the same day