United Airlines cancellation policy varies based on ticket type, travel class, and booking channels. Refundable tickets are the most flexible, while non-refundable tickets incur fees if canceled beyond the 24-hour risk-free window. Passengers can manage cancellations easily through United’s website or app, ensuring quick access to options like flight credits or refunds. International flights may have stricter policies, and travelers should verify terms before making decisions. By understanding cancellation rules and planning ahead, passengers can avoid unnecessary penalties and ensure a more seamless travel experience.