FlyerTalk Forums - View Single Post - Flight delaying passing 10,000 feet
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Old Jun 23, 2018, 1:12 pm
  #6  
Allan38103
 
Join Date: Jul 2009
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Posts: 1,668
Airplanes fly more efficiently at higher altitudes. (I.e, less fuel, costs less)

There's no reason a crew would choose to fly lower if they didn't have to.
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