https://central.xero.com/s/question/0D58V00009TPmlhSAD/18449877040what-is-the-cheapest-day-to-buy-amtrak-ticketshttps://central.xero.com/s/question/0D58V00009TPmlhSAD/18449877040what-is-the-cheapest-day-to-buy-amtrak-ticketshttps://central.xero.com/s/question/0D58V00009TPmlhSAD/18449877040what-is-the-cheapest-day-to-buy-amtrak-tickets