Haaa actually baby boleh naik flight from newborn onwards lah, tapi ramai paediatrician prefer tunggu sampai 2-3 weeks old baru risk infection kurang sikit. A few of us tried naik flight dengan baby 3-4 weeks old, and honestly memang ok jer if baby fit and healthy, tapi kena prepare well, bring extra diapers, milk, and be ready for ear pressure changes. The airlines themselves usually allow from birth, tapi check dengan specific airline dulu sebab ada yg ada rules sendiri!