https://www.deltaairlinereservation.com/delta-airlines-name-change-or-correction-policy
Change or Correction Passenger Name on Delta flight ticket
If you Booked delta airlines ticket but by mistakenly entered the wrong name of the passenger. In this case, you need to correction or Change name on Delta airlines ticket. Follow Steps to change or Retype Name with Itself. Read Delta Airlines name change Policy before make any Changes.