You may need to adjust your flight option from time to time while flying with United Airlines. To assist travelers who need to adjust their tickets, the airline includes the united flight change policy with every reservation made via them. You have three hours to make any necessary adjustments to your reservation, including requesting a refund or switching to a different one-way aircraft that will depart on the same day as your original reservation, in line with the United Flight Change Policy. You might have to pay a fee for the change you request, depending on the ticket form and the purchasing procedure.