I was going to comment on the same thing as AHBD, you absolutely must check with the specific airline you're flying with prior to the flight, as most all airlines are requiring pets to be put in the cargo area. The few airlines that do still allow you to bring a pet on board with you have to be in a very specific size of carrier that is put under the seat, but they usually have to be certified/licensed animals with papers showing they are necessary for the owner to travel with medically. They've all stopped allowing small animals now, I had a cousin actually choose to not go on a vacation because US Air, which had previously allowed him to bring his cat in a carrier under the seat several times before, told him at the airport that he had to now be some kind of specially licensed kind of "Support Pet", I don't know the specifics on that, but even the carrier that he had used several times before for him on US Air was now not allowed...This was going from Pittsburgh to Charlotte to Atlanta on US AIr in December.