How often does shipping go bad?

[Vypyrz]

How about winter shipping? Will heat packs keep the snakes warm enough? My next big purchases will be in January and I'm wondering if shipping will even be an option.

I bought 2 of my boas in January. 1 was coming from Florida and the other from Mass. They didn't ship until late March because the temps were still freezing at one of the distribution hubs that they would have to go through. It all depends on the weather and, I'm sure to some extent, the distance to the destination, and the route it has to travel.