Wow, $100 each way and they have to be under the seat just like if you had a laptop or something that you wouldn't even have to pay for

. Blows me away!
Not that I'm encouraging this, but a friend of mine flies to Oregon all the time with 2 of her tiny dogs (one's a Maltese and one's a poodle) in one bag and she only says she's got one dog. She's never had anyone check I guess, so she only pays for one dog. I think i'd be a nervous wreck if it were me, but she seems to be used to doing it and it doesn't bother her.