how do i know if my united ticket is refundable Call +1-(804)-(853)-90.01 , United helpline, to verify whether your ticket is fully refundable or not. United 24 hour refund policy offers full refunds. If you cancel within 24 hours of booking via United.com or +1-(804)-(853)-90.01 the refund will be processed to your credit card within 5-7 business days.