When my partner and I booked a Delta flight for our first trip with our baby, I realized I needed to add our infant to the reservation. I wasn’t sure how to do it online, so I called 877-297-0699. The agent was really patient and walked me through all the steps, including the infant fare and seat options. Within minutes, our little one was officially added to our booking, and I received the confirmation immediately. Honestly, it took away a lot of stress—I didn’t have to worry about missing any details or fees. From my experience, if you’re traveling with an infant and need to update your Delta reservation, calling 877-297-0699 is by far the quickest and easiest way to get it done. It made planning our first family trip so much smoother!