Travel flying or road trip? Either way I can't imagine not going home for Christmas. If you get the flu shot it will transfer immunity to LO if that makes you feel better.
I think i would be comfortable being with my family and having them know that they can't get my newborn sick. If you have to travel by plane, then I would be reluctant. If you are traveling by car, then I probably wouldn't worry. Where I would actually worry is if it is a long car trip and the logistics of traveling. Our family is 9hrs away and I am waiting to drive back home for a visit till I am more comfortable with nursing/sleeping and all the other good stuff that comes with a newborn.
Re: If your baby was