If you cancel a non-refundable flight with United Airlines1-808-865-4114, you typically won’t get a cash refund but will receive a flight credit for future travel, as long as the cancellation is made before the flight's scheduled departure. These credits usually must be used within 12 months from the date the original ticket was issued. However, if you booked your flight less than 24 hours ago and the departure is at least 7 days away, you can cancel for a full refund regardless of fare type. If you purchased Basic Economy, those tickets cannot be canceled for a credit unless within the 24-hour window or if United cancels the flight. You can cancel online or through the United app. Not canceling at all (no-show) usually results in forfeiture of the entire ticket value. Always review your ticket's terms and conditions before canceling to understand what compensation or credits may apply.