Luis Muñoz Marín International Airport (IATA: SJU, ICAO: TJSJ, FAA LID: SJU), previously known as Isla Verde International Airport, is the main international airport of Puerto Rico serving the capital municipality of San Juan and its metropolitan area since 1955. Named after Luis Muñoz Marín, the first popularly elected governor of the archipelago and island, the 1,600 acre (647 ha) airport is located in the beachfront resort district of Isla Verde in the municipality of Carolina, about 4 to 7 miles (6.4 to 11.3 km) east of the Milla de Oro financial district in Hato Rey barrio, Condado resort area and Isla Grande secondary airport in Santurce barrio, and Old San Juan historic quarter in San Juan Islet. SJU processed 13,247,382 total passengers in 2024, making it the busiest airport in Puerto Rico and the insular Caribbean. Handling 93% of passenger flow and 90% of air cargo into Puerto Rico, Luis Muñoz Marín International Airport is the 39th busiest airport by passenger enplanement, 38th by total passenger traffic, 24th by international passenger traffic, and 23rd by cargo throughput in the United States and its territories. It is also the 46th busiest airport in North America and the 15th busiest airport in Latin America by total passenger traffic. Luis Muñoz Marín International Airport is home to Muñiz Air National Guard Base, Puerto Rico Air National Guard 156th Wing, which in the past operated fighters like the F-104, A-7 and F-16 before later transitioning to the C-130E and WC-130H models. The unit is currently an operations support base, which frequently hosts all sorts of Military units from US and abroad.