FlyerTalk Forums - View Single Post - Sequence Numbers: What are they, how are they used & other questions?
Old Jun 29, 2015 | 8:41 pm
  #84  
dank0014
 
Join Date: Jan 2013
Location: LA
Posts: 1,281
IIRC, it is the check in number based upon the flight number. Meaning your flight may have a similar flight number that is operating earlier in the day. Could be wrong though
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