Puerto Rico to United States · 2,026 miles (3,261 km)

San Juan (SJU) to Saint Louis (STL) flights

One airline flies nonstop from San Juan (SJU) to Saint Louis (STL): 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 SJU to STL

SJU to STL 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
    Southwest Airlines logo
    Southwest Airlines logo
  • Via Atlanta (ATL)Delta Air Lines and Frontier Airlines the whole way
    Delta Air Lines logo
    Frontier Airlines logo
    Delta Air Lines logo
    Southwest Airlines logo
    Frontier Airlines logo
  • Via Jacksonville (JAX)Frontier Airlines and JetBlue Airways, then Southwest Airlines
    Frontier Airlines logo
    JetBlue Airways logo
    Southwest Airlines logo
  • Via Charlotte (CLT)American Airlines the whole way
    American Airlines logo
    Frontier Airlines logo
    American Airlines logo
    Southwest Airlines logo
  • Via Orlando (MCO)Frontier Airlines and Southwest Airlines the whole way
    JetBlue Airways logo
    Frontier Airlines logo
    Southwest Airlines logo
    Frontier Airlines logo
    Southwest Airlines logo
  • Via Punta Cana (PUJ)Frontier Airlines the whole way
    JetBlue Airways logo
    Frontier Airlines logo
    Arajet logo
    Frontier Airlines logo
    Southwest Airlines logo
  • Via Raleigh/Durham (RDU)Frontier Airlines, JetBlue Airways and 1 more, then Southwest Airlines
    Frontier Airlines logo
    JetBlue Airways logo
    Delta Air Lines logo
    Southwest Airlines logo
  • Via Fort Lauderdale (FLL)Southwest Airlines the whole way
    JetBlue Airways logo
    Southwest Airlines logo
    Frontier Airlines logo
    Southwest Airlines logo
  • Via Tampa (TPA)Southwest Airlines the whole way
    JetBlue Airways logo
    Southwest Airlines logo
    Frontier Airlines logo
    Southwest Airlines logo
  • Via Miami (MIA)American Airlines the whole way
    American Airlines logo
    Frontier Airlines logo
    American Airlines logo
    Southwest Airlines logo
  • Via Norfolk (ORF)JetBlue Airways, then Southwest Airlines
    JetBlue Airways logo
    Southwest Airlines logo
  • Via Columbus (CMH)Southwest Airlines the whole way
    Southwest Airlines logo
    Southwest Airlines logo
  • Via Dulles (IAD)United Airlines the whole way
    United Airlines logo
    Frontier Airlines logo
    United Airlines logo
  • Via Washington (DCA)JetBlue Airways, then American Airlines and Southwest Airlines
    JetBlue Airways logo
    American Airlines logo
    Southwest Airlines logo
  • Via Baltimore (BWI)Southwest Airlines the whole way
    Southwest Airlines logo
    Frontier Airlines logo
    JetBlue Airways logo
    Southwest Airlines logo
See all 31 in Routes

SJU to STL: common questions

Which airlines fly nonstop from SJU to STL?

Southwest Airlines flies nonstop from San Juan (SJU) to Saint Louis (STL).

How far is San Juan from Saint Louis by plane?

San Juan (SJU) and Saint Louis (STL) 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 SJU to STL cost?

It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for SJU to STL with taxes and fees.

Where can I connect between San Juan and Saint Louis?

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.