Sorry, I can't help you on the carriers. My Roxie is a little chunky and I haven't found the perfect carrrier yet. I want her to have room and be comfortable. I would be nervous too. I have never taking a animal on a plane trip. Do they get to stay with you? Can you buy a ticket for your furbaby?
But I can say, "WELCOME TO CALIFORNIA!" Not sure what part you are visiting but I hope you both enjoy your stay!
