Thank you @raquely and @shewolf2015!

How many bottles should I bring in the carry on? I'll need one for take off and one for landing. But I don't know if she'll sleep through the entire flight since it's a red eye. She's usually asleep before 8pm. Flight is at 9pm. And yes I know not to bring liquids. I'll have to buy bottled water after TSA.

Taking a red eye out which the flight will be about 6-7hrs depending on our coverage time. then we are grabbing a rental car and then my grandparents are 45 mins out from the airport.

How long will your commute be?

Do you have a tablet? Set up child's favorite shows to keep her busy. Toys and snacks( my daughter loves the fruit pouches!). Water, extra (comfortable for traveling) clothes, wipes, diapers, sippy/bottle,
Mirrors so you can see baby's face are nice to have!