United States, July 21 -- American Airlines and Mastercard announced an extension of their decades-long partnership, reinforcing a shared commitment to delivering more rewarding travel experiences and value through advanced payments technology and services. The agreement secures Mastercard as the exclusive payment network partner for American's co-branded credit cards, building on nearly 40 years of collaboration between the two companies. Together, American and Mastercard will continue to enhance the AAdvantage(R) program - American's industry-leading travel rewards program - while providing cardholders with seamless and personalized experiences on every trip. Enhancing the customer experienceAmerican will enhance its AAdvantage(R) program...