Generally, check-in with the airlines become a troublesome task for the passengers, as it is not only a time-consuming process, but also a hectic one. In fact, standing in the long queues at the airport to collect the boarding pass and to complete the check-in can turn out to be frustrating. However, if you are flying with Delta Airlines, you will notice a significant change in the check-in process, especially because it offers some of the most convenient options for the check-in