What amount does it cost to drop a United flight? Does United have completely refundable tickets? On the off chance that these are your inquiries, I guarantee you that United Airlines cancellation policy has replies to every one of them. On the off chance that you drop your booking, United might keep $50 or up to 10% of the admission, in addition to nonrefundable assessments and authoritative assistance charges. However, whenever dropped in the span of 24 hours of booking, you're qualified for a full discount.