Amtrak has a sale on fares between Washington and Baltimore to New York City for travel from Oct. 12-27.

One-way coach fares are $29. The special fare is only available for three days and must be booked by Aug. 25 .

The fare, which can’t be combined with business class upgrades, is only available on Northeast Regional service and fares are non-refundable.

Amtrak’s coach rates between Washington and New York normally begin at $49 with advance purchase. A search of some dates revealed that the special fare may apply to a limited number of routes, or seats may already have sold out.