Saint Louis (STL) to San Juan (SJU) flights
One airline flies nonstop from Saint Louis (STL) to San Juan (SJU): Southwest Airlines. The two airports are 2,026 miles (3,261 km) apart. There are also 31 ways to fly it with one stop, through Nashville, Atlanta and Jacksonville and more.
Airlines flying nonstop from STL to SJU
- Southwest AirlinesNot in an allianceWho books it
STL to SJU with one stop
31 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Nashville (BNA)Southwest Airlines the whole way
- Via Atlanta (ATL)Delta Air Lines and Frontier Airlines the whole way
- Via Jacksonville (JAX)Southwest Airlines, then Frontier Airlines and JetBlue Airways
- Via Charlotte (CLT)American Airlines the whole way
- Via Orlando (MCO)Frontier Airlines and Southwest Airlines the whole way
- Via Punta Cana (PUJ)Frontier Airlines the whole way
- Via Raleigh/Durham (RDU)Southwest Airlines, then Frontier Airlines, JetBlue Airways and 1 more
- Via Fort Lauderdale (FLL)Southwest Airlines the whole way
- Via Tampa (TPA)Southwest Airlines the whole way
- Via Miami (MIA)American Airlines the whole way
- Via Norfolk (ORF)Southwest Airlines, then JetBlue Airways
- Via Columbus (CMH)Southwest Airlines the whole way
- Via Dulles (IAD)United Airlines the whole way
- Via Washington (DCA)American Airlines and Southwest Airlines, then JetBlue Airways
- Via Baltimore (BWI)Southwest Airlines the whole way
STL to SJU: common questions
Which airlines fly nonstop from STL to SJU?
Southwest Airlines flies nonstop from Saint Louis (STL) to San Juan (SJU).
How far is Saint Louis from San Juan by plane?
Saint Louis (STL) and San Juan (SJU) are 2,026 miles (3,261 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
How many miles does STL to SJU cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for STL to SJU with taxes and fees.
Where can I connect between Saint Louis and San Juan?
The most direct connections are through Nashville (BNA), Atlanta (ATL), Jacksonville (JAX), Charlotte (CLT) and Orlando (MCO). On 24 of them the same airline flies both flights, for example Southwest Airlines through Nashville.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.