It sounds more like this Cross Realm Zone thing (rather than bad luck)- I've had the same thing happen flying to Whisperwind Grove, in Felwood.
The flightpath takes you directly over Shatter Scar Vale, home of the elusive Minfernal. When I saw several Minfernal pets on my minimap, I could not believe my luck! I flew back within seconds, and all the minfernals were gone, and there was no players around. A telltale sign that CRZ takes place is when you land, the flightpath master vanishes, and then reappears.