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
Thursday, September 10th, 2026
Outbound Flights
7h 57m·1 stop
$417 USD
STLSep 10 05:00
→MIASep 10 08:44
AA 1716Boeing 737
2h 31m layover
MIASep 10 11:15
→SJUSep 10 13:57
AA 1613Airbus A321
14h 39m·2 stops
$417 USDSTLSep 10 17:45
→PHLSep 10 21:07
AA 3049Airbus A319
56m layover
PHLSep 10 22:03
→MIASep 11 00:59
AA 2936Airbus A321
5h 46m layover
MIASep 11 06:45
→SJUSep 11 09:24
AA 3033Airbus A321
7h 44m·1 stop
$523 USD
STLSep 10 06:00
→ORDSep 10 07:33
UA 4423Bombardier Regional Jet 550
1h 22m layover
ORDSep 10 08:55
→SJUSep 10 14:44
UA 1996Airbus A321neo
6h 57m·1 stop
$618 USDSTLSep 10 06:53
→CLTSep 10 09:50
AA 1515Airbus A321
1h 15m layover
CLTSep 10 11:05
→SJUSep 10 14:50
AA 783Airbus A321
8h 44m·1 stop
$693 USD
STLSep 10 07:05
→ATLSep 10 09:39
DL 1536Boeing 737
3h 39m layover
ATLSep 10 13:18
→SJUSep 10 16:49
DL 1946Boeing 737
8h 27m·1 stop
$771 USDSTLSep 10 06:15
→IAHSep 10 08:32
UA 4581Bombardier Regional Jet 550
1h 38m layover
IAHSep 10 10:10
→SJUSep 10 15:42
UA 1192Boeing 737MAX 9 Passenger
6h 47m·1 stop
$1,131 USDSTLSep 10 06:00
→ATLSep 10 08:35
DL 1524Boeing 737
1h 32m layover
ATLSep 10 10:07
→SJUSep 10 13:47
DL 1882Airbus A321
7h 39m·1 stop
$1,131 USDSTLSep 10 13:40
→ATLSep 10 16:15
DL 566Boeing 737
2h 30m layover
ATLSep 10 18:45
→SJUSep 10 22:19
DL 1861Boeing 737
8h 23m·1 stop
$1,346 USDSTLSep 10 11:15
→IAHSep 10 13:32
UA 5589Embraer 175
1h 34m layover
IAHSep 10 15:06
→SJUSep 10 20:38
UA 701Boeing 737MAX 9 Passenger