I'm really sad for today's post because it involves loss of beloved family pets.
I've always recommended Delta as an airline to fly with when flying with pets to Argentina, however recently Delta has been far from the best when taking care of our loved ones on their flights. They have had too many mishaps of recent to make me comfortable using them any longer not just for my pets but in a stand for Delta to wake up and pay attention, I won't choose them either but that is a personal choice. however I would definitely reconsider when traveling with them with your pets.
Take a look at this Dogster post about not one but two families that have recently lost their pets when flying with Delta - one of them actually had the dog turn up dead on a highway near the airport.
It's always been known that pets die while flying on airlines but until now Delta had been doing a much better job, or so it seemed.