https://experience.dynamics.com/ideas/idea/?ideaid=d963067d-c13c-ef11-a295-00224853287a
Can I get my money back if I cancel my United Flight?
Regardless whether you cancel your United Flight months in advance, or you miss it due to some unforeseen issue on the way to the airport, you have a right to the same refund of taxes and fees from the airline. This is because in either case, you have not used the United Flight and are therefore not liable to pay these costs.