Delta understands that schedule items might change at any time, thus customers have the option to cancel their tickets at any time. There's a chance your delta refund policy will be cancelled. Travelers who have recently reserved a development spot and are unsure how to make changes can use Delta Airlines Manage Booking. As a result, they can make quick decisions. https://www.airtripsadvisor.com/american-airlines-cancellation-refund-policy/ https://www.airtripsadvisor.com/united-airlines-cancellation-refund-policy/