I wouldn't bother sterilizing on the flight. I'd stock up on bottles and have sackful ready and sterilized b/4 boarding. You could also have your boiled water in the bottle already so all you have to do is add the formula, or take a couple two liter bottles of water with you. Oh, and if the change in pressure hurts your LO's ears, get two cups from the flight attendant, have her put a hot wet paper towel in each and place them over LO's ears. It always helped me when I was a little girl to releive the pressure. Heck, if it gets bad, I still do it. :wink: