I frequently travel with my godkids. Whenever we travel out of state, I bring these 3 documents with me.
An adult traveling with minors carries passports, notarized parental consent forms, and birth certificate copies as precautionary travel documents despite TSA not requiring them.
I flew overseas with my baby for the first time. Knowing airline rules was key.
Flying long-haul with a nine-month-old to Europe succeeded through preparation, low expectations, strategic seat upgrades, and practical feeding techniques during takeoff to manage ear pressure.