A.D.
Hi P.,
I have twin girls. They are now 10 months old, but we traveled with them at the same age as your daughter halfway across the world and they did amazing! My husband is not American, so we traveled back to his country, Ghana, to stay for some time and be with his family. It was a total of nearly 30 hours traveling with one 2 hour flight and two 7 hour flights, and we crossed 4 time zones. I did the bottle at take off and landing and they were fine in the air. Also consider the time of day of the flight. We chose an over-night flight because of the distance we were traveling, knowing that they would sleep through the night. Since you are going 4 hours, maybe you can plan to fly during a nap time. If she sleeps the first two hours then you know that you have only two hours that she will be awake on the plane. I kept some tylenol with me just in case they needed help sleeping or their ears were bothering them, but I didn't end up using it. The airplane bathrooms are small, but the changiing table is normal size. They have the changing table that folds out of the wall. The best thing I can tell you is just relax and know that she is a baby, and most people are very understanding when traveling (especially alone) with an infant. My girls really surprised me at how well they did. All the flight attendants commented on how good they were. One thing they really liked was looking out the window at the clowds, so you might try to get a window seat. And also, when you get to the gate you can ask if there are any empty seats on the flight to take your car seat on. If there is space they will let you take it on the plane so your daughter will have her own seat.
Good luck and God Bless