Delta Airlines infant policy was meticulously crafted to meet the needs of families flying with young children. Domestic flights allow infants under two years old to fly free on an adult's lap, whereas foreign flights require a nominal cost. Delta offers parents the option of purchasing a separate seat for their newborn at a subsidized charge, allowing them to use an FAA-approved car seat. In addition to the regular carry-on items, the airline offers a considerable allowance for diaper bags. Furthermore, strollers and car seats can be checked at the entrance at no additional fee. This policy reflects Delta's commitment to providing a pleasant and stress-free flying experience for families.