I don't think I would try to bring any models to work on on a plane. I think the exacto knives, glue, paint, etc would not be legal to carry on and I'm not sure that a model under construction could be packed well enough not to render a finished model back into a kit or worse. A couple of years ago while I was on disability, my wife was sent for a wound care class in Las Vegas. The hospital flew her to and from Vegas for the class. She was there from Sunday evening until the following Saturday morning. She made arangements for me to check into her room while she was in class on that Tuesday and I drove up to Vegas and spent the rest of the week there. I took a car load of model projects with me and spent the days working on them while my wife was in class, and while she did her homework after class. Then we spent the evenings seeing the sights. I think the only way I would try to do any modeling on a trip is if I was driving, not flying.