Hi all, Its been a long time since we have flown delta. our most recent flights were on southwest and jetblue, and prior to that it was air tran for a few years. We were planning on doing carryons for our upcoming trip. Each person would have one small suitcase (meeting the correct dimmesions), and one backpack as a personal item. My youngest is also small for her Age and will need a booster seat for our rental car. Delta website says booster seats are not counted as a carryon item. Is this correct? We are already planning on checking 1 suitcase and if i had to do 2 its not that big of a deal, but would prefer not to. Does anyone know what deltas policy would be?