Traveling with Delta Air Lines is meant to be simple, predictable, and stress‑free, but even the most careful traveler can make a mistake during booking. Passengers frequently experience their most common problem when they find out their birth date shows up wrongly on their flight reservation and SkyMiles account. Delta considers your date of birth information as essential because it connects to all three security processes, which include TSA identity verification and Secure Flight screening and government-issued identification. The guide provides complete details about the Delta DOB change process together with personal information update instructions and required documents and methods to prevent airport delays.