Why not just transport the dog yourself? It's not that difficult....you just have to get the proper paperwork, which you will have to do anyway. The airlines won't fly your dog if the temperatures are an issue (over 85 degrees at any stop). I looked at one of those transport agencies years ago, and I think the cost was about five times the amount it ultimately cost me to fly my dog in cargo (on Delta one way, and LAN the other). Plus, you don't have to worry about someone else flaking out on you when you're traveling.