Begin your search for low-cost Delta Airlines flights by going to the airline's website and selecting the appropriate booking option. Fill in your departure and arrival dates and timings after selecting a one-way or round trip. The passenger's age must now be selected by clicking on the passenger's description. Before using the flight search option on the same page, double-check that all travelers' names are included. Choose a Delta Flights Booking after you've compared the two. Once you are done with it, proceed further. You must now choose another option, which will urge you to choose a bank and enter your card information.