Southwest Hiring Info 2016
Hired in 2014 and we definitely worked at least one Saturday, and it was July 4th. I think it's during systems week. The rest of the weekends other than sims we had off.
As mentioned above, indoc and everything else is seamless. No break.
The instructors will keep you there the entire class period even if it means taking more breaks. It drove our class insane. I was able to leave early one time for an appointment, but it took an act of congress and they made a huge deal out of it.
Bring a car if you can. Dallas isn't a real pedestrian friendly city. You will be glad you have it.