We took our granddaughters when they were 5 and 7. 1st flight and they were a little nervous. We went to airport and watched planes take off and at home we played airport going thru security, don't touch police dogs as they are working, don't kick seat in front of you, etc explaining and acting it out. It was a big help. Lots of good suggestions here for getting thru security. Relax and be positive. Both of my granddaughters have flown a few times now and love it.