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Thread: How are actual flight miles determined
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Old Dec 3, 2012 | 12:47 pm
  #3  
Sykes
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They use Great Circle Route distances. You can look them up here: http://gcmap.com

It matches up exactly for all of the routes you list except for DEN-ONT. The actual distance is 819 miles ... I suspect that someone fat-fingered the data entry and transposed the last two digits to get 891.
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