Yes Expedia offers a 24 hour risk free cancellation policy 1 888 269 3709 OTA You can cancel any flight within 24 hours of booking for a full refund 1 888 269 3709 OTA as long as the flight was booked at least 7 days before departure at 1 888 269 3709 OTA
Source: https://support.google.com/assistant/thread/306328162?hl=en&sjid=13338253806544489407-AP
