If you have made a mistake while entering your name on Delta flight tickets, there is nothing to worry about as the airline allows you to make changes to the ticket. According to the Delta Airlines name change policy, you are permitted to change a few characters to the name on the flight tickets. It can be done either by visiting the airline's official website or calling the travel representatives anytime. 

You can simply make changes to the Delta flights tickets under the manage my trips section. However, if you want to change the whole name, it is suggested to talk to the airline's travel agents.