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Old Jul 1, 2015 | 9:56 am
  #951  
Calchas
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Originally Posted by PhxFlyGuy
Why does class of service availability change on a particular flight when putting in different connections. Example: BOS DCA PHX on July 25th: Flying on US 2142 and connecting to US 563, EF shows F9 and X5 on flight 563. Flying on US 2139 and connecting to US 563 (the same flight from DCA to PHX), EF shows F8 X1 on flight 563. Doesn't make sense to me! Any explanation? Thx for your insight!
It's called "married segment logic".

Basically, whether the airline thinks selling a seat on a particular flight is going to be profitable depends on the behaviour of the whole flight network. So in this case if you are a group of 5 in X class they want you on the US 2142 -> US 563 rather than US 2139 -> US 563.
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