United Airlines' cancellation policy varies based on the type of ticket and timing. All passengers have a 24-hour cancellation window after booking to receive a full refund, as long as the booking was made at least seven days before the flight's departure. After the 24-hour period, the cancellation rules depend on the ticket type. For non-refundable tickets, if you cancel after the 24-hour window, you won’t receive a refund. Instead, you’ll get travel credit for future flights, subject to certain restrictions like expiration dates. Non-refundable tickets are cheaper but offer less flexibility. Refundable tickets allow you to cancel without penalty and receive a full refund to your original payment method. These tickets are more expensive but provide more flexibility for cancellations. If you need to change your flight, United may charge a fee, depending on the ticket and how close the change is to your departure date. You’ll also have to pay any fare difference for a more expensive flight. Premium fares like Business or First Class may offer more flexibility with no change fees, but fare differences still apply. If United cancels your flight, they will offer a full refund or rebooking options at no extra cost. If the cancellation is due to factors outside United’s control, such as weather, they are not obligated to provide a refund but will assist with rebooking.