St. Louis (STL) to San Juan (SJU) flight deal in business from $373
STLLambert-Saint Louis International Airport
St. Louis, United States
SJULuis Muñoz Marín International Airport
San Juan, Puerto Rico
$469 USD
-20%$373 USD
Verified 16 days agoSeptember 2026
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Rare Availability
9% of dates checked are available within 10% of the lowest price
Wednesday, September 23rd, 2026
Outbound Flights
8h 23m·1 stop
$373 USD
STLSep 23 11:15
→IAHSep 23 13:32
UA 5589Embraer 175
1h 34m layover
IAHSep 23 15:06
→SJUSep 23 20:38
UA 701Boeing 737MAX 9 Passenger
6h 57m·1 stop
$422 USD
STLSep 23 06:53
→CLTSep 23 09:50
AA 1515Airbus A321
1h 15m layover
CLTSep 23 11:05
→SJUSep 23 14:50
AA 783Airbus A321
7h 54m·1 stop
$503 USDSTLSep 23 05:00
→MIASep 23 08:44
AA 1716Boeing 737
2h 28m layover
MIASep 23 11:12
→SJUSep 23 13:54
AA 1613Airbus A321
15h 14m·1 stop
$503 USDSTLSep 23 17:10
→MIASep 23 21:00
AA 3851Embraer 175
9h 45m layover·Overnight
MIASep 24 06:45
→SJUSep 24 09:24
AA 3033Airbus A321
10h 22m·1 stop
$523 USDSTLSep 23 12:28
→EWRSep 23 15:59
UA 560Boeing 737MAX 9 Passenger
3h 48m layover
EWRSep 23 19:47
→SJUSep 23 23:50
UA 1543Boeing 737MAX 9 Passenger
6h 49m·1 stop
$578 USD
STLSep 23 14:30
→ATLSep 23 17:05
DL 566Boeing 737
1h 40m layover
ATLSep 23 18:45
→SJUSep 23 22:19
DL 1861Boeing 737
9h 49m·1 stop
$688 USDSTLSep 23 06:00
→ATLSep 23 08:35
DL 1524Boeing 737
4h 43m layover
ATLSep 23 13:18
→SJUSep 23 16:49
DL 1946Boeing 737
7h 57m·1 stop
$799 USDSTLSep 23 06:15
→IAHSep 23 08:32
UA 4581Bombardier Regional Jet 550
1h 8m layover
IAHSep 23 09:40
→SJUSep 23 15:12
UA 1192Boeing 737MAX 9 Passenger
6h 47m·1 stop
$1,106 USDSTLSep 23 06:00
→ATLSep 23 08:35
DL 1524Boeing 737
1h 32m layover
ATLSep 23 10:07
→SJUSep 23 13:47
DL 1882Airbus A321
7h 44m·1 stop
$1,346 USDSTLSep 23 06:00
→ORDSep 23 07:33
UA 4423Bombardier Regional Jet 550
1h 22m layover
ORDSep 23 08:55
→SJUSep 23 14:44
UA 1996Airbus A321neo