I used to ship uncooked ribs and chops from Iowa to Boston on UPS. Don't know if the rules have changed, but dry ice was considered hazardous and could not be shipped by air.
I would freeze stuff individually, then wrap in plastic, then in a double layer of newspaper. Put foam peanuts in the bottom of an old Omaha Steaks foam shipping cooler, then the meats, a freeze pack or two, and then more peanuts.
Originally, I shipped overnight, but then I went to second day with no problems. My UPS location was open until 8PM, so I would drop of the package just before 8, and it would be on the plane by midnight. By dropping it late, it didn't sit on their dock all day. Even in the heat of summer, ribs and chops arrived in good condition, still frozen.