I am going through this very delima right now too. I made my reservation with Delta to allow Marucs to fly with me in two weeks. I bought a new carrier to make sure that it fit the specifications. Now my husband is saying that Marcus is too little (ilb 11oz) to travel and he will have to stay home with him. I am heartbroken.
I can't imagine going anywhere without my him. Since Brusier is much larger, I think 12lbs is too big to fly. Since we brought Marcus home 6 weeks ago, he goes everywhere with me. He goes out shopping, to work with me, we spend just about 24/7 together. I know that my husband can take care of Brusier while I am gone, I just don't think he will take care of Marcus like I do. We have been fighting about it for a few days and he says that his decision is final...we'll see about that. Sorry, I didn't mean to get off subject, just needed to get that off my chest. When I called Delta yesterday to confirm that I was traveling with my dog, I asked if there was anything that I would need to bring with me, and other than the carrier they said no. I had expected that I would have to bring current health records, but they said not. The only other regulation is that they have to be atleast 8 weeks old. If you are concern about your baby being upset during that long flight, you might want to consult your vet. Some suggest a light sedation to calm down your baby. I don't like that idea very much, but I know many people have had suscess with it-especially on longer flights. Hope this helps and you both have a great trip!
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Shel Brusier Ballard-Schrader
and Marcus Aurelius