Well the kid holder doesn't meet the NZ/Aust guidelines. If I used it over there, I would get a ticket since they are both communist countries and bust you for everything out of the norm...I should know I am an Aussie AND a kiwi so I know the system.........Yes it would be nice on the plane but a heavy contraption to lug for only a car ride. I think an ambien and a glass of wine will help and of course, maybe some nice kind granny type will take pity on me