What is the number for Expedia cancellation? Passengers can cancel Expedia Airlines flights via the Expedia official website, mobile app, or by contacting their customer service at ?????+????????????????????????52?????????????1?. Cancellation fees vary based on ticket type and timing. Basic Economy: Not amenable to the post-24-hour window. Main Cabin and Above: Incurs fees, with the remaining value issued as an eCredit for future travel. Can I change a flight I already booked? Yes, you can reschedule or cancel a fligh???? by dialing the customer service number ??????????????????????52?????????????1. However, you may need to pay a change or cancellation fee depending on the airline you booked with and the fare class of your ticket.