If you have any queries, call the airline or SkyTravelFly at +1 (800) 221-1212 or +1 (888) 415-1531, they will help you and assist. Delta Air Lines is one of the best airlines in the airline industry because it provides many services compared to other airlines. For instance, it has a Delta Air Lines cancellation policy that is the best in this industry, allowing its travelers to make changes.