Upgrade 是 mikes + cash. 前题是有位子放出來在 Upgrade Pool.
https://thepointsguy.com/guide/american-airlines-mileage-upgrades/
拉下去看pecking order. 明显你是 general member no status. 要等所有 有各级 status 的 Upgrade requests 都 cleared 了 才輪到你。事实上 由 Plat 以下 長途 upgrade 机会基本为零。
Your chances of getting an upgrade (and a trick to help)
If you don't have elite status with American Airlines — and if there isn't upgrade availability at the time you're requesting — your chance of getting an upgrade is pretty slim. That's because the prioritization for upgrades on American Airlines is as follows:
