San Juan Airport Guide: The Caribbean’s Crossroads
San Juan Airport in Puerto Rico handles more than 13 million passengers a year on two runways beside the sea. Terminals, routes, access and spotting explained.
By The Aviation Hub
7 min read
Updated October 20, 2026 
San Juan Airport, officially Luis Munoz Marin International Airport, is the main gateway to Puerto Rico and among the busiest airports in the Caribbean. It sits on the north coast at Isla Verde in the municipality of Carolina, a few miles east of the capital’s financial district. More than 13.6 million passengers passed through in 2025, almost all of them on flights to and from the US mainland or the neighbouring islands. JetBlue is the largest carrier, and the airport doubles as the hub that knits the smaller islands of the eastern Caribbean to the American network.
San Juan Airport at a Glance
The IATA code is SJU and the ICAO code is TJSJ. The terminal lies roughly 5 miles (8 km) east of Hato Rey and about 9 miles (14 km) from Old San Juan. Elevation is just 3 metres (9 feet), with the Atlantic lapping at the northern boundary. There are two runways and four passenger terminals lettered A to D, all joined in a single curved complex.
Traffic in 2025 came to around 13.6 million passengers, up 3 per cent on the year before. JetBlue runs a focus city operation with roughly 50 daily departures, Frontier opened a crew base in 2024, and Cape Air and Air Sunshine use the airport as their Caribbean hub. Since 2013 the airport has been run by Aerostar Airport Holdings under a 40 year public private partnership, which makes San Juan Airport the only privatised commercial airport in the United States today. Operational details are on the airport’s official website.
How San Juan’s Airport Came to Be
Commercial flying in Puerto Rico began at Isla Grande, a waterfront field close to the old city that Pan American used for its Clipper flying boats and later landplanes. By the early 1950s it was too small and too hemmed in. The government built a new airport on the coastal flats at Isla Verde, and it opened on 22 May 1955 as Isla Verde International Airport.
It was later renamed after Luis Munoz Marin, the first popularly elected governor of Puerto Rico and the architect of the island’s modern political status. The jet age brought Pan Am, Eastern and later American Airlines, which built a large Caribbean hub here in the 1980s and 1990s before dismantling it after 2008. The gap was filled by JetBlue, which arrived in 2002 and grew steadily.
Privatisation in 2013 was the turning point. Aerostar, backed by Grupo Aeroportuario del Sureste of Mexico, rebuilt the older terminals one by one after Terminal A had opened for JetBlue in 2012: Terminal B reopened in 2014, Terminal C in 2016 and Terminal D in 2023. Hurricane Maria in September 2017 shut the airport for days and tested every system, yet recovery was fast.
Runways at San Juan Airport
San Juan Airport has two runways. The main runway, 08/26, is 3,170 metres (10,400 feet) long and 61 metres wide with an asphalt surface. The second runway, 10/28, is 2,443 metres (8,016 feet) long, 46 metres wide and concrete. As the identifiers suggest, the two are not parallel: they start close together at the western end and splay apart by about 23 degrees without crossing. The longer runway typically takes the heavy departures and arrivals.
The trade winds blow from the east almost all year, so runways 08 and 10 are in use most days. Arrivals cross the lagoon and the Teodoro Moscoso Bridge on final, with the city skyline to the right. Departures climb out over the beach resorts of Isla Verde and the Atlantic. Westerly operations are rare and usually follow a weather system.
The runways are long enough for any aircraft in regular service. Iberia’s flights from Madrid and the Boeing 757s and A321s of the mainland carriers fit comfortably. Puerto Rico’s Air National Guard, the 156th Airlift Wing, shares the field and occasionally adds military transports to the mix.
Terminals and Airlines
Terminal A is JetBlue’s home, shared with Air Canada, Avelo and Tradewind Aviation. Terminal B houses Delta, United and Southwest. Terminal C is the busiest for international flights, with American Airlines, Frontier, Iberia, Avianca, Copa, Arajet and others. Terminal D, reopened in 2023, serves the regional and island carriers such as Cape Air, Caribbean Airlines and InterCaribbean Airways.
The terminals form one continuous building, and Terminals B, C and D share a consolidated security area. The complex has been through a decade of upgrades, from new jet bridges to the relocation of check in and screening areas. Lounges are limited to The Lounge San Juan in Terminal A and an Avianca VIP lounge at Terminal C, since American closed its Admirals Club in 2014. Because Puerto Rico is US territory, flights to the mainland are domestic and need no customs, which keeps processing simple for the bulk of passengers.
Routes and Destinations
Orlando is the busiest route from San Juan Airport, with nearly a million passengers in 2025. New York JFK follows at about 650,000 and Miami at around 430,000. Fort Lauderdale, Newark, Boston, Philadelphia, Tampa, Atlanta and Chicago fill out a mainland network that reflects where the Puerto Rican diaspora lives. JetBlue, Frontier, American, United, Delta and Southwest all compete hard on these trunk routes.
Internationally, Punta Cana, Santo Domingo and Panama City lead, followed by services to Madrid with Iberia, Bogota and Medellin with Avianca, and the Dominican carrier Arajet. The island network reaches St Thomas, St Croix, Tortola, Dominica, St Maarten and the smaller Leewards on Cape Air, InterCaribbean, Contour and Tradewind. Madrid is the longest sector. Winter is peak season, when the mainland escapes the cold, though summer is busy with family travel. Cargo is substantial, with FedEx, UPS and Amerijet serving the island’s pharmaceutical industry.
Getting to and from San Juan Airport
There is no rail or metro connection. The Tren Urbano stops well short of the airport. Road access comes via the Baldorioty de Castro Expressway, PR-26, which runs west to Condado and Old San Juan, and the Teodoro Moscoso Bridge, which carries traffic south over the lagoon to Hato Rey. The drive to Old San Juan takes 20 to 30 minutes outside rush hour.
Taxis operate on fixed zone fares from the official rank, and Uber is permitted with a designated pick up area. Shared shuttles serve the resort hotels. AMA public buses are the cheapest option but slow and infrequent. Car hire is popular for exploring the island and the rental lots are a short shuttle ride away. Parking is in a multi storey garage opposite the terminals.
Spotting and Photography
The beach is the spotter’s friend at San Juan Airport. Isla Verde beach and the Pinones coast road to the east sit under the departure path from runways 08 and 10, with aircraft climbing low over the sand. The beachfront hotels along Isla Verde Avenue offer rooms with runway views, and the upper floors of the Courtyard and the Verdanza are well known among enthusiasts.
For arrivals, the shore of the lagoon near the Moscoso Bridge gives a side on view of aircraft on short final to runway 08. Morning light suits the beach side and the late afternoon favours the lagoon. The National Guard ramp is sensitive, so keep well away from its fence. Puerto Rico is relaxed about photography in public, but be mindful of beach users and never block the bridge footpath.
What Comes Next
Aerostar’s next phase targets Terminal A, where the check in desks and security lines are being relocated and gates A1 to A3 will move once an extension is built. The goal is more contact stands for JetBlue and Frontier and a smoother flow for the mainland peaks. New routes keep arriving, with JetBlue adding Baltimore from November 2026 and Southwest planning Columbus for early 2027.
The runway system has spare capacity, and the main constraint is the coastal site, which rules out any new runway. Hurricane resilience remains a priority after 2017. The direction is clear: San Juan Airport will keep growing as the Caribbean’s connecting point and as the busiest link between the islands and the mainland. See how it ranks on the Airports of the World map.
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