In the United States, plans have been unveiled for a significant expansion of Miami International Airport's (MIA) Concourse D. American Airlines and Miami-Dade County have announced a $1 billion investment to revamp the concourse, which is currently equipped to support smaller regional jets. The new design will include a three-level concourse featuring an additional section, Gate D60, and 17 extra gates designed for larger aircraft. One notable improvement is the elimination of outside boarding, allowing passengers to wait in individual boarding areas. This redesign is aimed at enhancing the overall passenger experience, emphasizing comfort and convenience. The expansion is poised to modernize MIA's infrastructure, creating spacious indoor environments adorned with palm trees and providing travelers with new shopping and dining options. With approximately 55.3 million passengers traveling through MIA in 2025, of which around 20 million flew with American and its regional affiliate American Eagle, the revamp seeks to accommodate the growing demand. American Airlines is leveraging its long-standing partnership with Miami-Dade County to enhance the airport’s capacity. One of the project's key features is the addition of direct access to the customs hall from the third floor, aimed specifically at making international travel smoother for passengers. According to Miami-Dade County Mayor Daniella Levine Cava, this enhancement is viewed as a monumental customer service improvement, set to transform the passenger experience at MIA over the next five years. This initiative reflects a broader trend in the aviation industry, where enhancing passenger convenience is increasingly prioritized. Scheduled to commence construction in 2027, this expansion is part of a larger vision that American Airlines and Miami-Dade County share for the ongoing success and development of Miami as a leading global gateway. American Airlines' Vice President of MIA Operations, Juan Carlos Liscano, expressed confidence in their partnership and the positive impact it will have on the community. With a workforce of 15,500 MIA-based employees, American aims to further solidify its role in representing the vibrant communities it serves through enhanced airport facilities.