Amtrak.com gives you the freedom to make quick and easy changes to existing reservations that were made online, through the Amtrak App or in a station anytime you want. Enjoy the flexibility of changing the dates and times of your departure and/or return trip or feel free to upgrade your seat or sleeping options. Changes can only be made if there is an e-mail address on file through Amtrak.com or modify reservations through the Amtrak App. Once your changes are complete, your ticket barcode will automatically update, so there's no need to reprint your ticket. If you skip the paper route, you can simply show the PDF barcode to the conductor from your phone or tablet. It's that easy.
If you booked online at Amtrak.com, you can easily change your reservation online
Select a reservation from the “Trips” section and start making your changes with the following steps:
Amtrak does not charge a ticket change fee, but please note that other fees may apply. Policies regarding ticket changes vary; limitations and exclusions apply.