M.W.
I just recently flew with my 21 month old son from Colorado to Virginia, for Christmas. The best thing that I bought for him was a backpack that
had wheels on it. He loved pulling and pushing it through the airport, and it helped me out a whole lot. Within his backpack, I put a few sippy cups, snacks, some of his trucks & books from home, his beloved "Scout" doll, and a few new never before seen toys that he could open on the plane. He was occupied the whole flight with the new toys, since he had never played with them before. I would definitely recommend to bring some suckers, so when the elevation changes, her ears can easily pop with the sucking motion. That is the only thing I had trouble with, since my son was fighting a cold. Another thing, don't let other peoples "dirty" or "fed-up" looks get you annoyed. They probably don't know what it is like traveling with a small child, and if they did, I promise their looks would change! Good luck to you! :)