“We’re making this change so we can provide you with a more consistent booking process and make more rooms available for when you need last-minute travel accommodations,” Hilton said in a statement. Marriott did not respond to requests for comment. Even hotels within large chains have varying cancellation policies, and the changes planned by Marriott and Hilton address only those last-minute cancellation rules. Policies won’t change for hotels that already have cancellation policies requiring a two-day, four-day or even longer advance notice. “Some hotels have more restrictive policies in place, so please refer to your individual conformations to verify their policy,” Hilton said. It’s likely that other hotel companies will adopt similar changes, especially as they evaluate the success airlines have had in raising additional fee revenue, which is often called ancillary revenue. For example, most airlines charge a $200 fee to cancel and rebook most coach tickets — and those fees sure do add up. In 2013, domestic airlines earned $2.81 billion from cancellation penalty fees, up sharply in five years from $1.67 billion in 2008. Get the full story at The New York Times