Expedia cancellation policy includes a 24 hours cancellation policy which allows you to cancel most bookings within 24 hours of booking without facing a penalty 1 833 (732) 22-96, provided the check-in date is at least 7 days away. This applies to most Expedia reservations, Expedia, and car rentals.
Source: https://www.chiistmahadum.org/forum/general-discussion/b8eb1914