St. Louis (STL) to San Juan (SJU) flight deal in business from $373

American AirlinesAAAmerican AirlinesDelta Air LinesDLDelta Air LinesUnited AirlinesUAUnited AirlinesSouthwest AirlinesWNSouthwest Airlines
One Way•Business Class
United StatesSTL

Lambert-Saint Louis International Airport

St. Louis, United States
Puerto RicoSJU

Luis Muñoz Marín International Airport

San Juan, Puerto Rico
$469 USD
-20%$373 USD
Verified 16 days ago
Rare Availability
9% of dates checked are available within 10% of the lowest price

Sunday, September 13th, 2026

Outbound Flights

8h 52m·1 stop
$427 USD
American Airlines
STLSep 13 05:15
→
CLTSep 13 08:12
AA 1515Airbus A321
3h 8m layover
American Airlines
CLTSep 13 11:20
→
SJUSep 13 15:07
AA 783Airbus A321
14h 39m·2 stops
$427 USD
American Airlines
STLSep 13 17:45
→
PHLSep 13 21:07
AA 3049Airbus A319
56m layover
American Airlines
PHLSep 13 22:03
→
MIASep 14 00:59
AA 2936Airbus A321
5h 46m layover
American Airlines
MIASep 14 06:45
→
SJUSep 14 09:24
AA 3033Airbus A321
8h 44m·1 stop
$478 USD
Delta Air Lines
STLSep 13 07:05
→
ATLSep 13 09:39
DL 1536Boeing 737
3h 39m layover
Delta Air Lines
ATLSep 13 13:18
→
SJUSep 13 16:49
DL 1946Boeing 737
18h 13m·1 stop
$505 USD
American Airlines
STLSep 13 14:11
→
MIASep 13 17:57
AA 477Boeing 737MAX 8 Passenger
12h 48m layover·Overnight
American Airlines
MIASep 14 06:45
→
SJUSep 14 09:24
AA 3033Airbus A321
6h 39m·1 stop
$628 USD
American Airlines
STLSep 13 07:28
→
CLTSep 13 10:25
AA 712Boeing 737
55m layover
American Airlines
CLTSep 13 11:20
→
SJUSep 13 15:07
AA 783Airbus A321
7h 57m·1 stop
$703 USD
American Airlines
STLSep 13 05:00
→
MIASep 13 08:44
AA 1716Boeing 737
2h 31m layover
American Airlines
MIASep 13 11:15
→
SJUSep 13 13:57
AA 1613Airbus A321
10h 25m·1 stop
$718 USD
United Airlines
STLSep 13 12:25
→
EWRSep 13 15:57
UA 560Airbus A319
3h 50m layover
United Airlines
EWRSep 13 19:47
→
SJUSep 13 23:50
UA 1543Boeing 737MAX 9 Passenger
6h 47m·1 stop
$1,116 USD
Delta Air Lines
STLSep 13 06:00
→
ATLSep 13 08:35
DL 1524Boeing 737
1h 32m layover
Delta Air Lines
ATLSep 13 10:07
→
SJUSep 13 13:47
DL 1882Airbus A321
10h 39m·1 stop
$1,116 USD
Delta Air Lines
STLSep 13 10:40
→
ATLSep 13 13:12
DL 1400Boeing 737
5h 33m layover
Delta Air Lines
ATLSep 13 18:45
→
SJUSep 13 22:19
DL 1861Boeing 737
7h 44m·1 stop
$1,356 USD
United Airlines
STLSep 13 06:00
→
ORDSep 13 07:33
UA 4423Bombardier Regional Jet 550
1h 22m layover
United Airlines
ORDSep 13 08:55
→
SJUSep 13 14:44
UA 1996Airbus A321neo
8h 23m·1 stop
$1,356 USD
United Airlines
STLSep 13 11:15
→
IAHSep 13 13:32
UA 6213Embraer 175
1h 34m layover
United Airlines
IAHSep 13 15:06
→
SJUSep 13 20:38
UA 701Boeing 737MAX 9 Passenger
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