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 15th, 2026
Outbound Flights
7h 54m·1 stop
$417 USD
STLSep 15 05:00
→MIASep 15 08:44
AA 1716Boeing 737
2h 28m layover
MIASep 15 11:12
→SJUSep 15 13:54
AA 1613Airbus A321
6h 57m·1 stop
$417 USDSTLSep 15 06:53
→CLTSep 15 09:50
AA 1515Airbus A321
1h 15m layover
CLTSep 15 11:05
→SJUSep 15 14:50
AA 783Airbus A321
19h 41m·2 stops
$417 USDSTLSep 15 17:13
→DCASep 15 20:19
AA 2286Airbus A319
41m layover
DCASep 15 21:00
→MIASep 15 23:45
AA 2214Boeing 737MAX 8 Passenger
11h 27m layover·Overnight
MIASep 16 11:12
→SJUSep 16 13:54
AA 1613Airbus A321
8h 23m·1 stop
$523 USD
STLSep 15 11:15
→IAHSep 15 13:32
UA 5589Embraer 175
1h 34m layover
IAHSep 15 15:06
→SJUSep 15 20:38
UA 701Boeing 737MAX 9 Passenger
6h 49m·1 stop
$578 USD
STLSep 15 14:30
→ATLSep 15 17:05
DL 566Boeing 737
1h 40m layover
ATLSep 15 18:45
→SJUSep 15 22:19
DL 1861Boeing 737
7h 57m·1 stop
$618 USDSTLSep 15 06:15
→IAHSep 15 08:32
UA 6258Embraer 175
1h 8m layover
IAHSep 15 09:40
→SJUSep 15 15:12
UA 1192Boeing 737MAX 9 Passenger
10h 22m·1 stop
$618 USDSTLSep 15 12:28
→EWRSep 15 16:00
UA 560Airbus A319
3h 47m layover
EWRSep 15 19:47
→SJUSep 15 23:50
UA 1543Boeing 737MAX 9 Passenger
6h 47m·1 stop
$688 USDSTLSep 15 06:00
→ATLSep 15 08:35
DL 1524Boeing 737
1h 32m layover
ATLSep 15 10:07
→SJUSep 15 13:47
DL 1882Airbus A321
8h 44m·1 stop
$688 USDSTLSep 15 07:05
→ATLSep 15 09:39
DL 1536Boeing 737
3h 39m layover
ATLSep 15 13:18
→SJUSep 15 16:49
DL 1946Boeing 737