Planning a trip can sometimes come with unexpected changes, and when it does, understanding Expedia’s cancellation policy for flights is essential to avoid unnecessary fees or complications. If you’ve booked a flight through Expedia and need to cancel, here’s a comprehensive look at how the expedia cancellation policy works for flights and what you need to know before you proceed. If you still have questions after reading, you can contact Expedia’s customer service for assistance at their toll-free number: 1-888-725-8215.