Delta infant policy is crucial for parents traveling with young children to ensure a smooth and comfortable flight experience. Delta Airlines allows infants under the age of two to travel on the lap of an adult passenger, but it’s important to note that a separate seat can be purchased for the infant if desired. The Delta infant policy also outlines the specific requirements for traveling with infant gear, such as strollers, car seats, and diaper bags, many of which can be checked in for free.