If it means his overall safety, no. Flying is more stressful on rabbits than driving, and while flying you cannot check your rabbits and during travels longer than three hours, you absolutely have to check your rabbit and feed it. A rabbit can die if it does not eat every 8 hours. A rabbit can go into stasis and if not cared for immediately and properly, it can die. A rabbit can also die of stress, which traveling causes rabbits who are not used to traveling. Its not the packing thats the problem, its the flying vs driving. Driving is much safer for a rabbit than flying as while driving you can do what you have to do to care for your rabbit and while flying, you most likely cannot
Unpacking and moving is also stressful on a rabbit because theyre in a place totally new with brand new sounds around. Unpacking first then moving in the rabbit at a later date gives the new place time to settle and spread your smell around making it more homey when your rabbit shows up. Plus, theres not as many new sounds. When you move him in, you should make it as comfortable as possible for him to destress and become comfortable with his new living space