I've flown a few times in less than two years ago with both of my kids and didn't need proof. We flew from Midwest to east coast. If you are leaving the country you will need more.

I didn't need anything for my daughter. And I've went on multiple planes multiple times , never been asked for any proof or anything.

@kyleigh.e.h, the airport said I can bring her social

You just need something official that has the baby's birth day on it but even then after a baby gets to be a certain age certain planes won't let you fly without one like southwest won't let you fly with a baby after 6 months if you don't have the birth certificate unfortunately we had to learn this the hard way

@p0790, thank you

If you agreed on getting g her vaccinated they should've given you a vaccine record cuz they get the hepatitis B vaccines as soon as babies are born, id call the hospital and ask for it, if they can't help you, call the airline and ask about it cuz most of the time they just want it as proof of age

@p0790, no I have her discharge papers

They didn't give you one at the hospital?

@p0790, she's only two wks

Shot record should be fine