Delta Airlines allows minor name corrections on tickets issued on Delta 006 stock, such as fixing typos (up to three characters in the last name), adding a middle name, or correcting inverted names, without a waiver code if handled by a travel agent and documented with an OSI entry. Significant changes, like those due to marriage or divorce, require legal documentation (e.g., marriage... https://www.airlinehelp.us/blog/delta-airlines-name-change-rules-step-by-step-guide/