With shipping dogs, I have been VERY pleased with the airlines I have used. Twice, I've had the airlines call ... one was simply the flight was delayed, and my pup didnt make the connecting flight. They got her on the next flight out. What was supposed to be 4 hours in total, became 12 hours. The other. I was shipping a 12 month old to her co-owner. She was going into Dallas, and as the flight was an hour from the destination, they rerouted the flight to Houston due to severe thunder storms. They gave me the choice of having my co-owner get her at Houston instead, or holding her over til the next day and then get her into Dallas ... my co-owner elected to make the four hour drive to the other airport. Most of the time, either I, or the buyer flew with young puppies as carry on baggage.