I've transported frozen meat and fish many times. If it's frozen and packed tight in either an insulated box (available at fish processors, etc.), or a sealed cooler, it will stay frozen solid for at least 24 hours, in my experience. Also, if it's delayed you'll find it will last a lot longer than that and any thawing will be slight thawing on the edges and it will be plenty cool so it won't spoil for a good long time. I just re-freeze it and frankly, never notice any decrease in quality.

The most efficient way to ship is in insulated boxes. Either buy them or make them. I've done both many times. We often just cut up dense styrofoam with a hand saw and make a styrofoambox within a cardboard box. Like I said, meat and fish processors also sell ready made boxes with certain capaciites (e.g. 20, 50, etc. lbs). Coolers also workexcellent, but the cooler is usually heavier than the insulatedbox and therefore won't allow as much meat net weight. The good quality coolers will keep it frozen for a LONG time though.

Most efficient way to carry on airline is to make two 100 lb. packages (strap/tape two 50's together to make a 100 if necessary) and check them as baggage. You will pay overweight charge, but it is cheaper than excess baggage. For example the following is from experience with NW Airlines last week, but others may be different - check.With NW,each checked bag more than two is $70 or $80 (can't remember exactly). Therefore four 50 lb boxes (two allowed, two exess) willcost you $140 - $160 exess charge. On the other hand, they onlycharge $50 each for the two allowed bags if they are overweight (moer than 50 lbs), with a cut-off at 100 lbs.Two 100 lb. packages will cost you $100 totalfor overweight. If you have other stuff, try to mail it USPS or UPS ground so you can check as much meat as possible.

You can also carry quite a bit of meat in a normal, large carry on. And, although you want to make sure it's in leak proof bags in case it thaws a little, you don't have to insulate nearly as much because it won't leave your posession and you can be confident of getting it back in the freezer asap. I often carry as much as 30 or 40 lbs of meat orsalmonin an allowable carryon. Double bag in heavy garbage bags, pack around it with clothes to insulate.

Good luck!