Traveling with a baby for the first time feels like a big task, but worry not because Southwest Airlines has provided simple regulations for carrying a baby with you in the Southwest Airlines infant policy » . This policy outlines the rules for passengers regarding lap children, car seats, strollers, and child-resistant systems. The passengers can carry a child below the age of 2 years on their lap. The only document required is the birth certificate of the baby. Before taking flight, ensure you take things to keep the baby busy and their food. Read the regulations in detail. Travel safely and make many new memories with your baby.