Go to the official Delta Airlines site and select the "book" option to reserve a Delta Airlines tickets. Enter the departure and return airports along with the type of trip. It may be one-way, round-trip or multi-city. Enter the date of release and the total number of people. Be aware that if you decide to cancel your flight, a refundable rate will refund you a part of the fare. The featured shop with miles that allows you to purchase flights using points by selecting flexible options' can aid you in finding the most affordable Delta flights Booking.