More than one, actually. The railroad must be experiencing a slow winter, hence the three sales it's recently posted. They are:
The 20% Off Winter Sale: This one's valid for fares booked by February 5 for travel by April 18. Some of the sample savings include Boston to Albany for $22, Philadelphia to Raleigh for $62, Washington to Toledo for $55, Los Angeles to San Franciso for $45 and New Orleans to Jackson for $16. For full information, click here. On select routes, that discount bumps up to 25%. Click here for that info.
Take-3-Get-1-Free Acela Rides: This one is for frequent riders (Joe Biden, you listening?). But if you ride the Acela 3 times between now and March 2, you can win a free summer ride (for travel between July 1 and August 29). The railroad is allowing customers to win up to four free rides this way. You must join the Amtrak Guest Rewards program to qualify. Here's a link to learn more.
Select 50% Discounts: These apply to weekend savings on the Capitol Corridor (between Auburn and San Jose for travel through April); and senior citizen fares on the Downeaster (between Boston and Portland, ME).
Click on the links above for information and links to even more deals.