Originally Posted by
champignon
I fly this route (BOI-SEA) on a regular basis, both on 737s and on regional jets operated by SkyWest or Horizon. Sometimes the flights are full and sometimes they are less than full. I have never experienced this issue. If it was to happen I would expect it to be on a very hot day, when planes have less lift, but I've never seen it personally.
given a short flight they can limit the fuel load on the plane than if the same plane did a a 2000+ mile flight