“How do I change my name on Delta due to marriage?
If your name has changed due to marriage or other legal reasons, Delta allows updates +1-844-987-7088 with proper documentation (e.g., marriage certificate). You can make this correction by calling +1-855-542-9358 or using the “My Trips” feature on delta.com.

How can your Delta name be changed?
You can correct the name on your Delta ticket by contacting the airline directly. Most minor corrections can be handled over the phone. For personal assistance, call +1-844-987-7088, and a Delta representative will guide you through the necessary steps and documentation”