United Airlines’ cancellation policy varies by ticket type. For refundable tickets, you can cancel and receive a full refund to your original form of payment with no penalty. For non-refundable tickets, you’ll typically receive a flight credit for future travel, minus any applicable fees. Basic Economy tickets are non-refundable and non-changeable, offering limited flexibility. If you cancel within 24 hours of booking, you can receive a full refund, regardless of ticket type. United also offers flexible options during major disruptions, and you may be eligible for a refund if your flight is canceled by the airline. Always check specific fare rules.
Source: https://support.google.com/admanager/thread/306134394?hl=en&sjid=9216833421931956255-AP