How to Use United Future Flight Credit?
To use your United Future Flight Credit, ensure your flight is eligible, include the credit number in your reservation, and use it within a year. Remember, the credit is valid only for United Airlines-operated flights. For details, call United Airlines at 18002416522 or OTA at +1-646-980-1956.
https://skynair.com/blog/how-t....o-use-united-future-