Puerto Rico is seeing softer mainland U.S. air traffic in 2026, with San Juan’s Luis Muñoz Marín International Airport recording year-on-year declines in domestic passenger movements through the first seven months of the year. For travellers planning a Caribbean holiday, the figures highlight a changing air-access picture for San Juan, where domestic routes account for most airport traffic. January started with 1,053,646 domestic passenger movements, down 2.6% from 1,081,636 in January 2025, while July recorded 1,116,082, down 5.1% year on year. Through July, domestic traffic was 3.5% below the comparable 2025 period.
San Juan starts 2026 with weaker mainland demand
January’s figures provided the first indication that Puerto Rico’s dominant U.S. travel market was beginning the year below the previous year’s level. Total passenger traffic at San Juan reached 1,190,578 in January, a 2.1% decline from 1,216,168 in January 2025. Domestic traffic accounted for 1,053,646 passengers, while international traffic rose 1.8% to 136,932.
For tourism, the distinction matters because domestic passenger movements represent flights between Puerto Rico and the continental United States. The domestic figure therefore provides an important indicator of demand from major mainland gateways serving the island. International traffic, meanwhile, showed modest growth in January, partly offsetting the domestic decline.
Capacity changes add another factor for travellers
Airline capacity has also shifted during 2026. Discover Puerto Rico reported that seat capacity from the U.S. Lower 48 into San Juan during the first quarter was 1.8% lower overall, with reductions from Frontier and Sun Country. At the same time, American Airlines, Spirit Airlines and United increased seats in the market during that period.
Later changes were more significant. Spirit Airlines’ exit from the San Juan market removed 60,644 seats across 13 routes compared with June 2025, according to Discover Puerto Rico. The carrier had flown 53,394 passengers across those routes in June 2025 and recorded no passengers on those routes in June 2026. The reduction affected connections between Puerto Rico and the mainland during the summer travel period.
Domestic traffic remains below 2025 levels
The decline continued into spring. In May, San Juan recorded 969,756 domestic passenger movements, compared with 1,014,574 in May 2025, a 4.4% decrease. Through the first five months, domestic traffic stood at 5,127,833, down 2.8% from 5,275,709 during the same period in 2025.
June brought another decline, with domestic passenger movements reaching 1,023,150 compared with 1,075,439 a year earlier. That represented a 4.9% year-on-year decrease. Through June, domestic traffic totalled 6,150,983, down 3.2% from 6,351,148.
The July figures extended the trend. San Juan handled 1,116,082 domestic passengers during the month, 60,418 fewer than the 1,176,500 recorded in July 2025. Domestic traffic for the first seven months reached 7,267,065, compared with 7,527,648 a year earlier.
International travel provides a different picture
Puerto Rico’s international air market has not followed exactly the same pattern. January international traffic increased 1.8%, reaching 136,932 passenger movements. In May, international traffic rose 2.0% to 139,472, while the year-to-date total reached 659,588, almost unchanged from 658,720 in 2025.
By June, however, international traffic had slipped 2.7% for the month, to 174,424, and was 0.5% lower year to date. Discover Puerto Rico has also reported stronger arrivals from markets outside North America during parts of 2026, with combined Europe, South America and Central America arrivals reaching 125,000 through April, a 14% increase.
What this means for a Puerto Rico trip
For visitors from the U.S. mainland, San Juan remains the principal air gateway and is connected with major cities including New York, Newark, Miami, Fort Lauderdale, Orlando, Philadelphia, Boston, Atlanta, Baltimore and Washington, D.C. The changing route and capacity picture means flight schedules and fares can vary by departure city and travel date.
Travellers planning Puerto Rico holidays can also look beyond San Juan. The island combines the capital’s historic districts and coastal attractions with destinations such as Ponce, Rincón, Fajardo and the mountainous interior. San Juan National Historic Site recorded 913,420 visitors during the first half of 2026, up about 12.6% from the same period in 2025.
For visitors watching budgets, airline changes also make fare comparison more relevant. The loss of ultra-low-cost capacity can reduce the number of lower-priced choices on some routes, while schedules may differ from previous seasons. Travellers can check departure airports, compare weekday and weekend options, and book around available capacity. These considerations are particularly relevant during peak periods, when demand for Puerto Rico’s beaches, heritage districts and outdoor attractions increases.
For tourism businesses, the passenger figures underline the importance of monitoring the U.S. mainland market while international demand and visitor interest in Puerto Rico’s cultural and historic attractions continue to develop. For travellers, the latest numbers point to a destination that remains highly accessible, but one where airline capacity, route availability and travel timing are increasingly important parts of trip planning.
