The reality is much more complex than that. There are numerous systems at AA for booking, reservation, ground ops, flight ops, airport integration, etc.... Many of these interact with SABRE, many of them are layered on top of each other but some only partially. Quite frankly it's pretty scary over there.
Isn't there an opportunity to consolidate what the IT needs really are with the US Airways merger?
"Integration costs" can be allocated to supporting what the business actually needs, and in the long-term there will be a cost saving. I appreciate the reality is not so straightforward.
US Airways uses SABRE as well, but let's just say your completely rational idea were to be adopted. The simple fact is they cannot execute. See my other comments.
