Expedia’s cancellation policy can vary depending on the type of booking, the property or service provider, and the specific terms of the reservation. However, here are the general guidelines for each typeHotel Bookings
Free Cancellation: Many hotel reservations on Expedia offer free cancellation, typically up to 24 hours before check-in. This means if you cancel within the free cancellation window, you won’t be charged a cancellation fee.
Source: https://support.google.com/business/thread/306212585?hl=fr&sjid=5631981521789854900-AP