Hey AwardTrail readers! American Airlines is giving away free miles just for signing up for their latest promotion. Seriously, that's it! Go register, and you've already banked some miles towards your next adventure. But the freebies don't stop there. You can rack up even MORE bonus miles – up to 3,000! – by booking hotel stays through AAdvantage Hotels and snagging rental cars through AAdvantage Cars. Just make sure to book and complete your stays/rentals before February 28, 2026, to qualify. Why does this matter? Free miles are always a win, but especially when they're this easy to get. Plus, if you're already planning on booking a hotel or renting a car, doing it through the AAdvantage portal is a no-brainer way to boost your mileage balance and get closer to that dream award flight. Don't leave free miles on the table!