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Thread: How do BA calculate flight distance?
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Old Oct 24, 2017, 2:31 am
  #7  
St Elmos Fire
 
Join Date: Dec 2014
Programs: BAEC Silver, Flying Blue Petroleum
Posts: 270
Originally Posted by IanAsiaTraveller
Exactly. So how on earth can you get a distance LESS than ground miles??
Good point! Circumference of the earth is 24,901 miles, the circumference of an orbit at 35,000 ft is about 20 miles more. I can see why the miles flown quoted onboard would be longer than the shortest ground distance.

The calculator you used may assume an average ground altitude above sea level, BA may assume sea level.
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