Much depends on how well you progress. I got all my ratings at TWA. B-707, 720, 727, 747, 757, 767, and L-1011.
Generally it is 2 weeks ground school, then simulator with emphasis on preparing for the Oral (which sometimes turns into a rectal), then more simulator emphasis on approaches.
One day in the pattern on the real thing, more if you need it. One day for the FAA check.