U.S. carrier United Airlines is renowned for its low-cost and high-quality travel services, making it the greatest alternative for travellers to travel. It is easy to schedule numerous United flights and cancel them as required. However, United has a 24-hour cancellation policy that you should be aware of before filing a cancellation request, as well as several other regulations and limits. There is no cancellation cost for United Airlines tickets that are cancelled within 24 hours, according to United airlines cancellation policy. According to United Airlines’ 24-Hour Cancellation Policy, customers must pay a cancellation charge after the 24-Hour Cancellation Policy has expired. If you cancel within 24 hours of booking, the airline must give you a full refund. Within three weeks, the airline will send the full refund money back to the original payment source.