https://www.jubileeclimatefarm.org/forum/general-discussion/c-p-q
For non-refundable tickets canceled outside the 24-hour risk-free window, United 𝓐𝓲𝓻𝓵𝓲𝓷𝓮𝓼 charges a cancellation fee, typically $200 for domestic flights and $300-$500 for international flights. However, United 𝓐𝓲𝓻𝓵𝓲𝓷𝓮𝓼 will issue the remaining ticket value as future flight credit valid for one year from the cancellation date. The original passenger or another traveler can use the credit.