As everyone has said, check with the breeder on the walking jacket idea. My suggestion is a litterbox...you could bring with you a larger crate than she will likely be flying in that will fit a small litterbox and kitty bed in... that way she can be safely contained but have access to a litterbox after her long flight. Bring wet wipes with you btw in case she hasn't been able to hold it and is a bit messy when you pick her up. Mostly they don't but it pays to be prepared!
It can be hard to ignore the cries, but if you do most of the time the kitten will settle down and nap...just don't keep looking into the crate and talk to them if you don't want them to talk back! LOL!
It can be hard to ignore the cries, but if you do most of the time the kitten will settle down and nap...just don't keep looking into the crate and talk to them if you don't want them to talk back! LOL!