I HIGHLY recommend carrying it on the plane with you. That's what we
now do, after trying a few other methods. when we go back and forth.
Even when we are bringing back as much as 5 cases each!

You should call the airline ahead of time to let them know you will
have some excess, heavy baggage. We forgot to do that once, and they
almost didn't let us bring it on (even with excess baggage charges!)

e.