{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?{AMT} Trains from What is the cheapest day to buy Amtrak tickets?