If you're up for planning a post-holiday getaway, Amtrak has a deal that will save you cash - but you must hurry to get in on this flash sale.

Travel on the Northeast Regional from Baltimore to New York for $38 each way, about half off a typical fare. Take Amtrak from Washington DC to Richmond, Va., for just $19 each way.

The discounts are available online only for travel between Jan. 21 and Feb. 13. Purchase by Dec. 5 - that's tomorrow - at Amtrak.com.