If you decide to irrigate be careful of the water .. if you cannot drink the water straight from the faucet do not use it for irrigation.. use bottled water. I irrigated for 10 years and when I traveled to a new time zone irrigation did not work for me.
Maybe others had success and setting up an irrigation bottle/hose and the sleeve (are these same items used)and needing a chair in a hotel room was hard!!! The total process took 45 minutes to an 1 hour so after I had children I stopped.
I now just regulate the poop by eating small meals if I am working out side my home or traveling.
Did you just consider just putting on a new bag when the old is filled while traveling on the plane ?since you have a colostomy it usually stops soon after eating.