San Juan Luis Munoz Marin International Airport (SJU) is the primary airport serving San Juan, Puerto Rico, and the surrounding area. Located in Carolina, Puerto Rico, the airport is named in honor of Luis Muñoz Marín, the first democratically elected governor of Puerto Rico, in recognition of his role in modernizing and developing the island.

The airport was opened in 1942 as Isla Verde Airport, and was used primarily by the U.S. military. In 1961, the airport was renamed after Luis Muñoz Marín and began offering commercial flights. It was upgraded to an international airport in 1962, and in 1967 the airport was designated as the Caribbean hub for American Airlines.

In the early 1970s, the airport underwent a major renovation, with new runways, taxiways, and terminals. The airport also added a new control tower and a central terminal building. The airport code, SJU, was created in 1978, and is derived from the first two letters of the airport’s full name.

Today, SJU is the busiest airport in Puerto Rico and the second busiest in the Caribbean, after Miami International Airport. The airport offers direct flights to over thirty cities in the United States, and has numerous international flights to destinations in Central and South America, Europe, the Caribbean, and more. In 2019, the airport handled more than 4.3 million passengers.

The airport consists of three terminals: Terminal A, Terminal B, and the Inter-Island Terminal. Terminal A handles primarily international flights, while Terminal B handles domestic and inter-island flights. The Inter-Island Terminal is primarily used for flights to other airports in Puerto Rico.

The airport offers a variety of services and amenities, including restaurants, shops, car rental services, and ATMs. The airport also has a U.S. Customs and Border Protection facility, as well as a VIP lounge, which is available to passengers who are traveling in a premium class.

SJU offers an average of 350 daily flights, operated by a variety of airlines, including American Airlines, United Airlines, JetBlue Airways, Southwest Airlines, Delta Air Lines, Spirit Airlines, and Air Canada. The airport also offers direct flights to destinations in the United States, Canada, Mexico, Central America, the Caribbean, and South America.

Overall, San Juan Luis Muñoz Marín International Airport has been serving Puerto Rico and the surrounding area since 1942, and has become one of the busiest airports in the region. The airport was named after Luis Muñoz Marín in recognition of his contributions to the island, and its airport code, SJU, was created in 1978. SJU offers an average of 350 daily flights operated by a variety of airlines, and has direct flights to destinations in the United States, Canada, Mexico, Central America, the Caribbean, and South America.