Hi! First, it is always a good idea to empty an ostomy before getting on board. Second, request an aisle seat so you have easy access. I always bring sanitizing wipes in a small baggie and deodorant spray, just in case. When emptying an ostomy in a small space, I always sit down and get rid of it as I normally would. Just make sure you sit further back on the toilet to give yourself enough room to empty! Feel free to e-mail me at firstname.lastname@example.org! Hope this helps!