I flew with my little guy last month from Oakland, CA to Portland, OR. Nobody even looked at his carrier! They did ask for his health certificate and of course his fee for flying...$70. The flight attendant on our way home didn't even notice that I had a dog, until I was getting off the flight.
I want a LV dog carrrier. I love them because they do not look like a pet carrier. If I had one, I would been using it to fly and everything else.