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
Monday, September 14th, 2026
Outbound Flights
6h 57m·1 stop
$417 USD
STLSep 14 06:53
→CLTSep 14 09:50
AA 1515Boeing 737
1h 15m layover
CLTSep 14 11:05
→SJUSep 14 14:50
AA 783Airbus A321
19h 9m·2 stops
$417 USDSTLSep 14 17:45
→PHLSep 14 21:07
AA 3049Airbus A319
56m layover
PHLSep 14 22:03
→MIASep 15 00:59
AA 2936Airbus A321
10h 13m layover
MIASep 15 11:12
→SJUSep 15 13:54
AA 1613Airbus A321
8h 27m·1 stop
$513 USD
STLSep 14 06:15
→IAHSep 14 08:32
UA 6258Embraer 175
1h 38m layover
IAHSep 14 10:10
→SJUSep 14 15:42
UA 1192Boeing 737MAX 9 Passenger
6h 47m·1 stop
$520 USD
STLSep 14 06:00
→ATLSep 14 08:35
DL 1524Boeing 737
1h 32m layover
ATLSep 14 10:07
→SJUSep 14 13:47
DL 1882Airbus A321
7h 54m·1 stop
$548 USDSTLSep 14 05:00
→MIASep 14 08:44
AA 1716Boeing 737
2h 28m layover
MIASep 14 11:12
→SJUSep 14 13:54
AA 1613Airbus A321
8h 2m·1 stop
$618 USDSTLSep 14 05:43
→DFWSep 14 07:40
AA 2261Airbus A320
1h 6m layover
DFWSep 14 08:46
→SJUSep 14 14:45
AA 702Airbus A321
8h 23m·1 stop
$618 USDSTLSep 14 11:15
→IAHSep 14 13:32
UA 5589Embraer 175
1h 34m layover
IAHSep 14 15:06
→SJUSep 14 20:38
UA 701Boeing 737MAX 9 Passenger
7h 44m·1 stop
$703 USDSTLSep 14 06:00
→ORDSep 14 07:33
UA 4423Bombardier Regional Jet 550
1h 22m layover
ORDSep 14 08:55
→SJUSep 14 14:44
UA 1996Airbus A321neo