Plans change and Delta Airlines is totally aware of this, that's why they make sure you can replan your journey with them without any hassles. If there is a change in your travel plans then no issues. Delta Airlines allows you to cancel your flight bookings before departure without any hassles. If you have used Delta Airlines Book a Flight process in refundable fares, Delta Airlines will also reimburse your payment. But if you have a non-refundable fare, getting your money back can be pretty challenging. Read more to find out what will happen on canceling a non-refundable ticket.