We use a rolling cooler like this http://www.target.com/p/igloo-maxcold-40...page.vertical_1

Checked as a piece of luggage, it has kept meat frozen for 3 days before we get on the boat.

We freeze everything on a cookie sheet so it lays very flat and stacks together in one block. The night before our flight we load the cooler and add 10#'s of dry ice. The next morning, we remove the dry ice (too much of a hassle to fly with dry ice). It will stay frozen for 3-4 days.

This cooler is great on the boat, we don't go through near as much ice.

The reason we bring food is for ease in the galley. At home I pre-cook bacon and sausage (no messing with grease), make taco meat, marinate chicken breast, inject a pork tenderloin and make homemade spag. sauce. Makes meals for 8 a lot easier.