I am planning on driving from the San Francisco bay area to Jackson hole after Christmas. I was wondering if anyone has done that drive during the winter and could comment on the time it takes with the snow. I know what it will be like getting over the pass in CA/NV and am not too worried. I know the route that goes through Twin Falls and Idaho Falls and then into Jackson, WY. I was most likely going to take that route but wanted to hear what some of the thoughts were on driving those roads in the middle of winter. I have 4-wheel drive and will carry chains but am I looking at a huge time difference from when I did the same drive this past summer in about 2 days (which included stopping for pictures, food, and only one of us drove)?

I viewed one of the posts posted prior to this regarding a similar question and understand that the drive from Idaho Falls into Jackson is not too bad and the alternate route that is available through Alpine.

Any help would be MUCH appreciated. Thanks.

~Frankie