TJSJ is the ICAO code for Luis Munoz Marin International Airport (IATA SJU), located in San Juan, U-A, Puerto Rico.
San Juan Luis Muñoz Marín International Airport (TJSJ) sits 5 miles southeast of downtown San Juan, Puerto Rico. It is the principal commercial and business-aviation gateway to Puerto Rico and the eastern Caribbean. Commercial service is dominant (American, Delta, United, JetBlue, Southwest, Frontier, Spirit) — TJSJ is one of the busiest airports in the Caribbean — and the field handles a steady flow of US business aviation, particularly during the Caribbean winter season (December–April) and around major events.
The two runways (10/28 10,400 ft, 8/26 7,400 ft) handle every current business jet without restriction. Two FBOs (Atlantic Aviation and World Aviation) handle private movements with substantial hangar capacity. Because TJSJ is a US airport (Puerto Rico is a US territory), there is no CBP / Customs requirement for arrivals from the mainland — a meaningful operational simplification versus other Caribbean destinations. Field elevation is 9 feet, no density-altitude concerns. The dominant operational considerations are hurricane season (June through November — TJSJ has been hit by major storms and brokers should brief weather contingencies), summer thunderstorms, and the standard tropical convective pattern. Ground time to Old San Juan is 15–20 minutes; Condado and Isla Verde resort districts are 5–15 minutes; the El Yunque rainforest is 45 minutes.
Luis Muñoz Marín International Airport, 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 airport is located in the beachfront resort district of Isla Verde in the municipality of Carolina, about 4 to 7 miles 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 13,643,689 total passengers in 2025, making it the busiest airport in Puerto Rico and the insular Caribbean.
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