MIA or Wilcox Field is what people call or used to call the Miami International. Miami is served by more airports, but this one is currently the main one. The other cities surrounding the airport are Doral, Miami Springs, and Hialeah, the Virginia Gardens village, and the Fontainebleau neighborhood. As a curiosity for those who want to know more about aviation, Miami International is one of the 8 airports in USA specially adapted to accommodate jumbo jets like the Airbus A380.
There are 10 airlines in total using this airport as their main hub: 5 of them are for passengers and the other 5 are for cargo. Miami surpassed long ago the city status, and given its size, it attracts lots of visitors as well. 2013 was the year in which 40.5 million people passed through the airport. This number ranked the airport as second busiest in US, the busiest being JFK.
Miami International has 3 functioning terminals that are color coded: blue for the North Terminal, red for the South one, and yellow for the Central one. The airport stopped using three concourses: A, B and C.
Depending on where you want to fly, American Airlines might be your best bet as it offers flights to far more destinations that any of the other airlines flying in and out of Miami International. As far as cargo flights go, there are many airlines using this airport and most of them have several points of arrival.
Domestically, people prefer flying to New York City and Atlanta, Georgia the most. The year 2015 counted 863,000 and 834,000 passengers flying to these cities, respectively. Internationally, most people flew to London - well over 1 million travelers had this city as their destination. Despite these numbers, This airport is the main connection between South America and USA.