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Thread: How does Delta know I will arrive early in 10 days?
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Old Jul 23, 2010 | 7:45 pm
  #9  
dereiziger
 
Join Date: Feb 2009
Location: MSP
Programs: DL SkyMiles, UA Mileage Plus
Posts: 319
i believe it is based on current performance of the flight within the last 30 days or so....
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