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Direct flights from Saint Louis to San Juan

Airlines Schedules

STL - SJU route map All flights from STL to SJU non-stop. There are direct flights from Saint Louis Airport (STL), Missouri, USA to Luis Munoz Marin International (SJU), Puerto Rico with Southwest Airlines. 1 weekly departure is currently scheduled on this route. Departure times range from 08:45 to 12:05 depending on the schedule period. The flight distance is 2036 miles (3276 km). Flight time ranges from 4 hours and 20 minutes to 4 hours and 35 minutes.

STL
Saint Louis Airport
USASaint Louis , USA
SJU
Luis Munoz Marin
Puerto RicoSan Juan , Puerto Rico
STL
Saint Louis Airport
USASaint Louis , USA
Luis Munoz Marin
Puerto RicoSan Juan , Puerto Rico
SJU
Flight time 4h 20min to 4h 35min
Updated Nov 9, 2026
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Airlines with non-stop routes:

Southwest Airlines Low-cost carrier

Departure times vary between 08:45 and 12:05 • From Terminal 2
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Sun
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1 flight/week
1 flight/week
Weekday-labels: HAS FLIGHTS UPCOMING NO FLIGHTS
View all flight dates
Flight schedule from Saint Louis to San Juan with Southwest Airlines

This is a weekly direct flight schedule for Southwest Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.

 
Flight
Mon
Nov 16
Tue
Nov 17
Wed
Nov 18
Thu
Nov 19
Fri
Nov 20
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Nov 21
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Nov 22
WN4122
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12:05
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The timetable & schedule information was updated at 2026-11-09

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Saint Louis to San Juan scheduled departures

Select a date to see every published non-stop departure between STL and SJU.

Sunday
Sun
Dec 06
0 flights(0)
Monday
Mon
Dec 07
0 flights(0)
Tuesday
Tue
Dec 08
0 flights(0)
Wednesday
Wed
Dec 09
0 flights(0)
Thursday
Thu
Dec 10
0 flights(0)
Friday
Fri
Dec 11
0 flights(0)
Saturday
Sat
Dec 12
1 flights(1)
Time
Airline
Flight
10:55
Southwest Airlines Southwest Airlines
WN4083
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STL-SJU flight route
Route map from Saint Louis, STL to San Juan, SJU. The distance is 2036 miles or 3276 km.
Saint Louis - San Juan direct flight map
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STL - SJU route facts

  • Distance
    2036 miles (3276 km)
  • Flight time
    4 hours and 20 minutes to 4 hours and 35 minutes
  • Airline
    Southwest Southwest
  • Airline alliances
    Low-cost carrier
  • Cabins
    Economy
  • Departure terminals
    Terminal 2
  • Arrival terminals
    Terminal B
  • Aircraft
    Boeing 737MAX 8 Passenger, Boeing 737-700 Passenger (Scimitar Winglets) and Boeing 737-800 (winglets) Passenger/BBJ2

Route FAQ

Southwest Airlines operates non-stop flights from STL to SJU with 1 weekly departure (Nov 16 – Nov 22, 2026).

Scheduled flight time from STL to SJU ranges from 4 hours and 20 minutes to 4 hours and 35 minutes. The route covers 2036 miles (3276 km).

1 weekly departure (Nov 16 – Nov 22, 2026) are currently scheduled on this route, with published departure times ranging from 08:45 to 12:05 depending on the schedule period.

Departure terminal: Terminal 2. Arrival terminal: Terminal B.

Economy are currently scheduled on non-stop flights for this route.
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