If you travel a lot (or are pretty much a credit card fiend), chances are you're going to have bagged a whole bunch of American Airlines AAdvantage miles. Maybe you've been keeping them for the big dream trip or an immediate weekend getaway, or maybe you're just hoarding them like a squirrel with too many nuts. But here’s the million-mile question: Do American airline miles expire? Spoiler alert—they do. And if you’re not careful, your hard-earned miles might vanish before you even get a chance to use them. So, what’s the solution? If you’re not planning to redeem them soon, it might be smarter to sell American airline miles before they disappear into the abyss of expiration. In this blog, we’ll break down everything you need to know about AAdvantage mile expiration, how to prevent losing them, and why selling them could be the best financial move. Do American Airlines Miles Expire? Unlike some airline programs that have moved to a “no expiration” model (because they ...