The cancellation policy for United Airlines provides flexibility, with options tailored to ticket type and timing of the cancellation. A key feature of their policy is the 24-hour cancellation rule, allowing passengers to cancel a ticket within 24 hours of purchase and receive a full refund, provided the ticket was booked at least two days before the scheduled departure. This rule applies to all fare types, including Basic Economy, which otherwise has limited flexibility. For cancellations or assistance, you can contact Expedia’s customer service at ????-????????????-????????????-????????????????.