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
Friday, September 25th, 2026
Outbound Flights
16h 15m·2 stops
$417 USD
STLSep 25 17:45
→PHLSep 25 21:07
AA 3049Airbus A319
56m layover
PHLSep 25 22:03
→MIASep 26 00:59
AA 2936Airbus A321
7h 21m layover
MIASep 26 08:20
→SJUSep 26 11:00
AA 1341Boeing 737
7h 44m·1 stop
$436 USD
STLSep 25 06:00
→ORDSep 25 07:36
UA 4423Bombardier Regional Jet 550
1h 19m layover
ORDSep 25 08:55
→SJUSep 25 14:44
UA 1996Airbus A321neo
6h 57m·1 stop
$498 USDSTLSep 25 06:53
→CLTSep 25 09:50
AA 1515Boeing 737
1h 15m layover
CLTSep 25 11:05
→SJUSep 25 14:50
AA 783Airbus A321
6h 47m·1 stop
$578 USD
STLSep 25 06:00
→ATLSep 25 08:35
DL 1524Boeing 737
1h 32m layover
ATLSep 25 10:07
→SJUSep 25 13:47
DL 1882Airbus A321
8h 44m·1 stop
$578 USDSTLSep 25 07:05
→ATLSep 25 09:39
DL 1536Boeing 737
3h 39m layover
ATLSep 25 13:18
→SJUSep 25 16:49
DL 1946Boeing 737
7h 54m·1 stop
$618 USDSTLSep 25 05:00
→MIASep 25 08:44
AA 1716Boeing 737
2h 28m layover
MIASep 25 11:12
→SJUSep 25 13:54
AA 1613Airbus A321
8h 2m·1 stop
$618 USDSTLSep 25 05:43
→DFWSep 25 07:40
AA 2261Airbus A320
1h 6m layover
DFWSep 25 08:46
→SJUSep 25 14:45
AA 702Airbus A321
8h 28m·1 stop
$618 USDSTLSep 25 11:10
→IAHSep 25 13:25
UA 6213Embraer 175
1h 41m layover
IAHSep 25 15:06
→SJUSep 25 20:38
UA 701Boeing 737MAX 9 Passenger
6h 49m·1 stop
$718 USDSTLSep 25 14:30
→ATLSep 25 17:05
DL 566Boeing 737
1h 40m layover
ATLSep 25 18:45
→SJUSep 25 22:19
DL 1861Boeing 737