You don't mention how far away your family lives, whether you can afford to go by train, or whether driving the whole way in your own car would be an option, or whether you could sail there, or by sailing to for instance Hoek van Holland taking the train the rest of the way would be an option?
As far as I can see, you can either go on flying even although you hate it and are becoming increasingly scared of it, or take the train on you own. After all, why should your husband be deprived of two or three days with the family because you are afraid of flying.
I do understand you feel hurt that he is not more supportive here, but many people do find it impossible to understand that someone who is afraid of something they are not afraid of can't just get over it.
By taking the train on your own, you will still be able to visit your family and not have to argue with your husband about it, I hope.
As some of the others suggest, your husband may be feeling hurt that you don't see his point of view here.