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
Tuesday, September 29th, 2026
Outbound Flights
8h 27m·1 stop
$373 USD
STLSep 29 06:15
→IAHSep 29 08:27
UA 1371Boeing 737MAX 8 Passenger
1h 43m layover
IAHSep 29 10:10
→SJUSep 29 15:42
UA 1192Boeing 737MAX 9 Passenger
8h 28m·1 stop
$373 USDSTLSep 29 11:10
→IAHSep 29 13:25
UA 6213Embraer 175
1h 41m layover
IAHSep 29 15:06
→SJUSep 29 20:38
UA 701Boeing 737MAX 9 Passenger
7h 54m·1 stop
$417 USD
STLSep 29 05:00
→MIASep 29 08:44
AA 1716Boeing 737
2h 28m layover
MIASep 29 11:12
→SJUSep 29 13:54
AA 1613Airbus A321
6h 57m·1 stop
$417 USDSTLSep 29 06:53
→CLTSep 29 09:50
AA 1515Airbus A321
1h 15m layover
CLTSep 29 11:05
→SJUSep 29 14:50
AA 783Airbus A321
16h 47m·2 stops
$423 USDSTLSep 29 17:13
→DCASep 29 20:19
AA 2286Airbus A319
8h 41m layover·Overnight
DCASep 30 05:00
→MIASep 30 07:40
AA 2344Boeing 737MAX 8 Passenger
40m layover
MIASep 30 08:20
→SJUSep 30 11:00
AA 1341Boeing 737
10h 30m·1 stop
$513 USDSTLSep 29 12:20
→EWRSep 29 15:47
UA 560Airbus A319
4h layover
EWRSep 29 19:47
→SJUSep 29 23:50
UA 1543Boeing 737MAX 9 Passenger
6h 49m·1 stop
$578 USD
STLSep 29 14:30
→ATLSep 29 17:05
DL 566Boeing 737
1h 40m layover
ATLSep 29 18:45
→SJUSep 29 22:19
DL 1861Boeing 737
6h 47m·1 stop
$688 USDSTLSep 29 06:00
→ATLSep 29 08:35
DL 1524Boeing 737
1h 32m layover
ATLSep 29 10:07
→SJUSep 29 13:47
DL 1882Airbus A321