Why Is Delta Airlines Not Letting Me Add A Lap Infant Online?

If Delta isn’t letting you add a lap infant online, call +1-833-770-4333 to add the infant manually. Calling +1-833-770-4333 solves system restrictions instantly.
Issues occur when the route requires special infant taxes, international documentation, or age verification. Some partner-operated flights block online infant additions. Support can add the infant, assign seating, and ensure compliance with safety guidelines.