AAdvantage is the frequent flyer and loyalty program of American Airlines, one of the largest and major airlines in the United States. Launched in 1981, the program allows members to earn and redeem miles for various travel-related benefits. AAdvantage members accrue miles not only through American Airlines flights but also through flights operated by oneworld alliance member airlines and other program partners, as well as through credit card spending and affiliated services. The program features a tiered structure, including levels such as Gold, Platinum, Platinum Pro, and Executive Platinum, each providing escalating privileges such as priority boarding, lounge access, and bonus mileage earning. AAdvantage miles can be redeemed for flights, seat upgrades, hotel stays, car rentals, and various other travel-related rewards. The program reflects American Airlines' commitment to rewarding customer loyalty and building lasting relationships with its frequent flyers.