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

Saturday, September 12th, 2026

Outbound Flights

6h 57m·1 stop
$417 USD
American Airlines
STLSep 12 06:53
→
CLTSep 12 09:50
AA 1515Airbus A321
1h 15m layover
American Airlines
CLTSep 12 11:05
→
SJUSep 12 14:50
AA 783Airbus A321
20h 49m·2 stops
$417 USD
American Airlines
STLSep 12 17:18
→
ORDSep 12 19:13
AA 4645Embraer 175
1h 48m layover
American Airlines
ORDSep 12 21:01
→
CLTSep 13 00:04
AA 2976Airbus A321
11h 16m layover
American Airlines
CLTSep 13 11:20
→
SJUSep 13 15:07
AA 783Airbus A321
15h 14m·1 stop
$548 USD
American Airlines
STLSep 12 17:10
→
MIASep 12 21:00
AA 3851Embraer 175
9h 45m layover·Overnight
American Airlines
MIASep 13 06:45
→
SJUSep 13 09:24
AA 3033Airbus A321
7h 39m·1 stop
$578 USD
Delta Air Lines
STLSep 12 13:40
→
ATLSep 12 16:15
DL 566Boeing 737
2h 30m layover
Delta Air Lines
ATLSep 12 18:45
→
SJUSep 12 22:19
DL 1861Boeing 737
8h 2m·1 stop
$618 USD
American Airlines
STLSep 12 05:43
→
DFWSep 12 07:40
AA 2261Airbus A320
1h 6m layover
American Airlines
DFWSep 12 08:46
→
SJUSep 12 14:45
AA 702Airbus A321
11h 4m·2 stops
$618 USD
American Airlines
STLSep 12 08:43
→
CLTSep 12 11:40
AA 712Boeing 737
1h 50m layover
American Airlines
CLTSep 12 13:30
→
MIASep 12 15:34
AA 1198Airbus A321neo
2h 31m layover
American Airlines
MIASep 12 18:05
→
SJUSep 12 20:47
AA 1689Boeing 737
13h 27m·2 stops
$618 USD
United Airlines
STLSep 12 09:23
→
ORDSep 12 10:59
UA 4395Bombardier Regional Jet 550
3h 33m layover
United Airlines
ORDSep 12 14:32
→
EWRSep 12 18:01
UA 1929Airbus A321neo
1h 46m layover
United Airlines
EWRSep 12 19:47
→
SJUSep 12 23:50
UA 1543Boeing 737MAX 9 Passenger
13h 27m·2 stops
$618 USD
United Airlines
STLSep 12 09:23
→
ORDSep 12 10:59
UA 4395Bombardier Regional Jet 550
2h 31m layover
United Airlines
ORDSep 12 13:30
→
EWRSep 12 16:54
UA 1695Boeing 757
2h 53m layover
United Airlines
EWRSep 12 19:47
→
SJUSep 12 23:50
UA 1543Boeing 737MAX 9 Passenger
7h 44m·1 stop
$623 USD
United Airlines
STLSep 12 06:00
→
ORDSep 12 07:33
UA 4423Bombardier Regional Jet 550
1h 22m layover
United Airlines
ORDSep 12 08:55
→
SJUSep 12 14:44
UA 1996Airbus A321neo
6h 47m·1 stop
$693 USD
Delta Air Lines
STLSep 12 06:00
→
ATLSep 12 08:35
DL 1524Boeing 737
1h 32m layover
Delta Air Lines
ATLSep 12 10:07
→
SJUSep 12 13:47
DL 1882Airbus A321
7h 54m·1 stop
$798 USD
American Airlines
STLSep 12 05:00
→
MIASep 12 08:44
AA 1716Boeing 737
2h 28m layover
American Airlines
MIASep 12 11:12
→
SJUSep 12 13:54
AA 1613Airbus A321
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