What is a 500 mile upgrade American Airlines?

Related questions

1. Is Aer Lingus and American Airlines partner?
2. How much does it cost to upgrade to first class on American Airlines?
3. Can you use miles to upgrade on American Airlines?
4. Can I use miles and cash on American Airlines?
5. Is the American Airlines Credit Card worth it?
6. Can I use Qantas points on Emirates flights?
7. Can I combine Alaska and American Miles?
8. Does American Airlines Own Alaska?
9. Are airports publicly or privately owned?
10. What group is American Airlines part of?

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