I started a thread about this same thing about 3 mths ago -
http://www.yorkietalk.com/forums/sho...d.php?t=105755
Lots of responses there.
What I did was go online & look for the measurements of the underseats for the type of airplanes I would be flying on. Because that's the biggest concern, if the bag doesn't fit under the seat, you will have to let a flight attendant take her & your bag
I looked at all kinds of bags, rolling ones, sherpas, etc -- I ended up buying something on clearance at petco - I have plenty of purses for the yorkies, I figure the only time I'll use this flying bag is when I fly again - which probably won't happen often, and I didn't want something that screamed DOG