Sorry to jump on this thread, but I'm trying to replicate an ita matrix fare as well. Hipmunk seemed to find the closest fare, but it was through Orbitz. I guess Orbitz charges an extra fee, so the fare is like $8 more than what is showing up on ita matrix. Not that $8 is a big deal, but I'm just trying to understand, does that mean that the exact fare on ita matrix is not bookable, because this fare is only found through Orbitz?