Frankfurt Main Airport — Frankfurt am Main, Germany

Frankfurt Airport, universally recognized by its code FRA, ranks among Europe's largest and busiest air hubs and serves as the primary base for Lufthansa's long-haul network. The airport integrates a mainline railway station directly beneath its terminals, letting passengers step from high-speed ICE trains onto connecting flights without ever leaving the building. Cargo operations at FRA rival or exceed those of any other European airport, reflecting Frankfurt's status as Germany's financial capital and a major logistics crossroads. Multiple runways handle an enormous volume of daily takeoffs and landings, though noise restrictions and a court-ordered nighttime flight ban have shaped operations for years. Beyond its transport function, FRA has effectively become a small self-contained city, with hotels, chapels, medical facilities, and an observation deck drawing visitors independent of any flight.