A developer recently built this hobby project that allows you to view a "calendar" of Amtrak fares like on Google Flights (or most airline websites) for flights: Rail for Less
I believe a similar service existed a while back, but broke after Amtrak website upgrades. This one can be a bit slow because of how it's implemented, it seems, but it does save some time vs. manually checking date after date in the normal Amtrak interface.
I believe a similar service existed a while back, but broke after Amtrak website upgrades. This one can be a bit slow because of how it's implemented, it seems, but it does save some time vs. manually checking date after date in the normal Amtrak interface.