maxwell87 - I used to live in Atlanta so no experience going through it..however, I understand there's a new intl term there so maybe it is ok.
The r/t fares I'm getting for SFO to MBJ right now TODAY are 566 for a red eye that goes sfo-miami- mbj and returns mbj-dfw-sfo

There are other options like going through Chicago and Charlotte...Have lived in Chi too, so know about snow delays
and 2 years ago was stuck in Charlotte overnight in a snow storm flying fro MoBay back to Minneapolis....ya, I've lived a few places.
So I tend to avoid weather delay places as much as possible.

Booger, see above paragraph