What is the cheapest day to book a ticket on Amtrak?

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Source: What is the cheapest day to book a ticket on Amtrak?

What is the cheapest day to book a ticket on Amtrak? What is the cheapest day to book a ticket on Amtrak? What is the cheapest day to book a ticket on Amtrak? What is the cheapest day to book a ticket on Amtrak?

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