https://central.xero.com/s/question/0D58V00009ORZCGSA5/ticket-what-day-of-the-week-is-best-to-buy-amtrak
"Best Prices"Here's a tip: +1--888--[596]--4751 Tuesdays, Wednesdays, and Saturdays are usually your go-to days for the cheapest fares. Keep in mind, though, that Amtrak's special sales+1--888--[596]--4751 often come with restrictions on these days.