I flew airtran and it was 1 cat per carrier. When we were moving that was what we found with most airlines, although all my cats were full grown so I didn't look into kittens too much. We also had to purchase a seat for each cat. Nate and I have 4 cats but there were only the two of us and we still needed to purchase 4 human seats. Each cat seat was additional money too.
formerly known as meghanispie
Now send me those cookies.