This Is The United States’ Busiest Airport In 2025

The busiest airport in the United States in 2025, as well as the rest of the world in most other years since the turn of the millennium, has been Hartsfield-Jackson Atlanta International Airport (ATL). This facility, which offers nonstop services to destinations all across the globe, has long been a principal hub for the US-based legacy carrier Delta Air Lines (NYSE: DAL). A fortress hub that serves as the principal global linchpin of the Delta Air Lines network, this facility has long been one of the biggest and most valuable assets in Delta’s operational portfolio. Almost no carrier comes close to matching Delta’s passenger traffic through Atlanta, and the facility’s status as a fortress hub for the airline is unlikely to change anytime soon.