S.C.
H. -
My daughter took 7 plane trips in her first year of life (all our family is out of state), so I have LOTS of advice! Feel free to pick and choose:
Packing:
I always traveled with my travel system stroller and car seat. They go through security fine, and every airline I have flown have no problem gate checking both stroller and car seat. Pack sanitizing wipes to wipe down everything on the plane!
Checking in:
If there are extra seats on the plane, the airline will let you take your car seat on, even if you did not purchase a ticket. (In my experience, we got to take the extra seat about 60% of the time.) When you travel with an infant you have to go through the line to check in, you can't just print out your boarding pass at the kiosk. You can ask the attendent when you check in if there are extra seats, and they will tell you. Don't feel bad about asking, my experience is that they are very happy to accomodate you, whether or not you bought the extra seat. Have some proof of your child's age - they will take birth certificate or vaccine records. They usually don't start asking until the child is over a year old, but I did have one airline (Southwest) ask for my 6 month old.
Security:
Many airports will actually let you go to the front of the line if you have a stroller (Austin is NOT one of them), so look for a sign that will mark a seperate line for infants and wheelchairs. Going through is hectic, just remember to stay calm and don't get rushed. You will have to carry your baby through the metal dectector. Often the checkers will help set your stroller back up for you on the other side. You can bring as much baby food and formula you need, if you use it, but the bottles will have to be made ahead of time (you can't bring in bottled water for bottles). If you do bring it, just tell the bag checker that you have baby food in the bag.
On the plane:
You will need to stop at the gate and get check tags for your stroller and car seat. Then you just leave them right outside the plane door and they will bring them back up to you at your destination. Ususally the stroller is already out and ready for me when I get off the plane. Make sure you use the airport bathroom before you board. I didn't once, and realized in the air that I either had to hand my baby to a stranger to watch, or take her into the bathroom on the plane - not a good choice! If you do get an extra seat, the car seat has to go backwards in the seat next to the window. Otherwise it blocks people from getting out. If you do not have an extra seat I still like to seat next to the window, so if the baby is asleep I don't have to get up and down with her a lot. I have not found a preference on front or back of the plane. I try to sit next to people that appear to be traveling for pleasure, not business. The airline will not let you seat in rows with other lap babies, as there are not enough oxygen masks. Try to have your baby sucking on something during take off and landing, it helps with their ears. Bring lots of distracting devices, and if she takes a pacifier, bring multiple ones, as one will always fall on the floor.
I have tons more advice if you have any other questions - feel free to contact me!
Good luck, and congratulations on the little one!
Sherri