Nashville International Airport is a busy, modern, user-friendly airport. It first opened in 1937. The current terminal opened in 1987 but has aged well. The airport code is BNA, which stands for the former airport name, Berry Field Nashville. American had a hub here through the mid 1990s, even boasting a non-stop flight to London. While AA shut the hub down it has still maintained a strong relatively strong schedule to non-hub cities like New York Laguardia and Los Angeles. American also has a large Admiral's Club here, relatively rare for a non-hub city. However, Southwest has become the dominant carrier with almost 50% market share. BNA has 4 concourses. The largest concourse is Concourse C, home to American and Southwest. Concourse D, a commuter terminal, has been closed since shortly after 9/11. The only passenger international flights now are to Cancun and Toronto though China Airlines operates 747-400F cargo flights to Taiwan.