We sometimes find it easier to use a pullup when we are going to be doing diaper changes in inconvenient places. I have used them on my children when they were little and it has always worked great for us. It's much easier to pull on a pullup and have the child standing. If they do have a poopy diaper, you can rip the sides to get it off cleanly, and then wipe them.
Just and idea, HTH!
Great tip for the older bunch!!! Thanks!! If we aren't completely potty trained by May, I will plan on brining these for the plane!