Originally Posted by
stifle
All kinds of dark arts – sometimes it's different points of sale, sometimes they speculatively book inventory and sell it closer to the ticketing deadline, and yes, occasionally there's some hidden city ticketing in there.
Nope, almost never any of these. That would require expertise and effort. It's almost invariably back to back booking, discounting below cost or sacrificing commission. You always get a PNR, you can always manage flights direct with airlines. You would see a hidden city ticket in the itinerary.