Bought coolers, zip ties, and duct tape at Walmart.
Deboned meat on tailgate of rental, in motel, etc
( Buy Dollar Store shower curtains)
Couple 2 L bottles of water to freezer as ice blocks
Rotated from fridge to freezer until ALMOST frozen.
Into cooler and off to airport.
Keep duct tape and zip ties with you, they usually want to. Inspect/ check for dry ice. Think dry ice limit is 3# per cooler.
70# weight limit, but a few bucks to skycap works wonders.
I KNOW sooner or later meat will get lost or delayed, but hasn't happened yet.
Killed a moose on a DIY hunt, but drove.
And made a BIG cooler, lol.