To cancel a flight booked through Expedia, log in to your account, find your itinerary, and select “Cancel Flight.” Refunds depend on the airline’s policies and whether you’re within the 24-hour cancellation rule. Some non-refundable fares may only offer credit instead of a cash refund. If you need help canceling or aren’t sure what refund applies, call 866-204-0803 and Expedia’s flight specialists will assist you in canceling your ticket and confirming your options.