I started carrying on the 4 pack of small bottles last year. I have taken them through Miami, Mobile, and Port Canaveral. I plan to take them through Port Canaveral again on Saturday. I do that because we fly to port and they are just easy to pack, and I don't have to make any pre-cruise stops. I posted about it so I am going to link you to that post so you can see the pic I added of the wine. It is not my favorite wine, for sure, but it is convenient, and nobody has questioned it. I flatten the box in my suitcase but put it all together again in my carry on when we go through the port check-in.