Its actually quite easy to get now, one of the many benefits of privacy regulation. To comply with EU, California, and a growing number of jurisdictions requiring companies to discloses what data they've collected on their customers you can usually request a report. To get to American's self-service portal just submit a request through https://privacyportal.aa.com/

Last time I submitted a report I received back 4 different files:

• Admirals Club - showing every club entry I've ever made (fun-fact, they identify which clubs are "legacy US Airways" in the report
• AAdvantage Profile - showing info on your account, your flight preferences, the partners you've linked, and even every device you've logged in on
• AAvantage Account Activity - showing all the credits/debits made to your mileage account, and it even breaks down EQS, EQM, and EQDs for flights pre-loyalty point
• Flight Records - this is the beefy one, shows every flight, ticket #, seat, fare code, etc. Its not formatted well for export as a PDF with tables in it, but some creative scraping and you can get the data out.

The only disappointment I have is it seems there's no US Airways data in the reports, but honestly being able to get a copy of this much data without having to beg/talk to an agent is a pretty nice "perk"