Originally Posted by
jsloan
All of the above is true; I skipped over that in my initial reply to try to keep from confusing the issue.
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Fares are also filed based upon point of sale. There was an example on the board earlier this week where UA is offering a discount business fare PEK-ORD-PEK that may only be purchased in China.
I brought it up mainly because the vast majority of market differentiation is done by filing different fare tables based on origin city. The PEK/ORD example from the other thread was a case where there was a very cheap P fare which was valid only with an origin in China. The sales city issue only arose because there was a "negotiated" version of the fare with different combinability rules and (in the case of the K fare) a different advance purchase. The fare amount was the same.
In general, the GDS fare table you get will only ever be a function of origin city; if the sales city matters it would be indicated in cat15 on the fare itself.
But indeed, seems like inventory is at issue here ^