A little bit of background:
DD is 33 months and we've been slowly working on potty learning for a month or so. She definitely needs a diaper at night and most times at nap time too. During the day it depends, she will hold it till we get home if we're out running errands for an hour or two but if she's sitting in her high chair for a while she will pee. She gives no indications that she needs to potty unless she's got a naked bum (in that case she will run to the potty by herself). When she's at my mom's for a few hours she pees in her diapers freely. She has also been very reluctant to pee in public bathroom toilets though has been okay with using the regular toilet at our house and a relative's when visiting, usually she goes on her little potty.
So we are going on a week-long trip to a tropical destination, leaving in 5 days. It's sort of a last minute thing and I'm wondering what to do about the diaper situation. DD wears cloth diapers at home but we bring disposables on vacation/trips. We haven't tried underwear yet but I was planning to put some in her stocking at Christmas, it's something I've talked about with her and she seems excited about.
What would you do in this situation? Bring regular diapers? Will they stand up to being fastened and refastened when we're going to the potty? Should I get pull-ups? Are they absorbent enough to handle nights and a 5 hour plane ride? Start with underwear on the trip or just go along with the previous plan to do that around the holidays?