Every airline blocks different times for their flights. It's not uncommon for one airline to allow say an extra 10 minutes or so for a particular flight, compared to another carrier. The engine type has nothing to do with the flying time, the plane itself has the same cruising speed. I understood that HP
got planes with higher rated engines to cope with the heat in PHX
, though I don't know the details. Another possibility is the cruising altitude and winds. Possibly B6
chose a different altitude with lower head winds or different routing. Westbound flights are prone to strong headwinds.
Just an addition I just checked. The scheduled flying time for B6's BOS-LGB run is 6h40m and HP BOS-LAS is 6H10m. Also HP BOS-LAX is 6h25m, comparable to other carriers. Looks like B6 found a way to make up some good time!
[Edited 2004-02-03 16:49:58]