United Airlines Cancellation Policy is the ideal service to combine the best value and comfort when flying internationally. United Airlines Cancellation Policy allows passengers to cancel their tickets within 24 hours and receive full reimbursement. After 24 hours after cancellation the customer must be responsible for an additional United Airlines cancellation fee for non-refundable tickets. United Airlines flights can be cancelled online, offline, in person at an airport. Refundable tickets can be cancelled completely free with United Airlines. You are able to cancel your flight ticket and receive a refund in accordance with the United Airlines refund policy, until 10 minutes prior to the departure time on your scheduled flight. Make sure you bring an original credit or debit card the form of payment you used to book your flight. Otherwise, you could not get your refund quickly!