Discover everything you need to know about the Delta infant policy to ensure a smooth and stress-free travel experience with your little one. Delta Airlines offers a family-friendly approach, allowing infants under 2 years old to fly either on your lap as a "lap infant" or in a separate seat with an approved car seat. For domestic flights, lap infants travel free of charge, while international flights may require a small percentage of the adult fare. The Delta infant policy also permits essential items like strollers and car seats to be checked at no extra cost, making it easier for parents to manage their travel gear. To add an infant to your reservation, contact Delta’s customer service or update your booking online. Ensure you have proper documentation, such as a birth certificate or passport, for your infant during check-in.