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 15 days ago
Rare Availability
9% of dates checked are available within 10% of the lowest price

Monday, August 31st, 2026

Outbound Flights

6h 40m·1 stop
$417 USD
American Airlines
STLAug 31 05:00
→
MIAAug 31 08:53
AA 1716Boeing 737
1h 2m layover
American Airlines
MIAAug 31 09:55
→
SJUAug 31 12:40
AA 1613Boeing 737
6h 57m·1 stop
$417 USD
American Airlines
STLAug 31 06:54
→
CLTAug 31 09:49
AA 712Boeing 737
1h 16m layover
American Airlines
CLTAug 31 11:05
→
SJUAug 31 14:51
AA 783Airbus A321
9h 20m·1 stop
$417 USD
American Airlines
STLAug 31 11:35
→
MIAAug 31 15:29
AA 477Boeing 737MAX 8 Passenger
3h 42m layover
American Airlines
MIAAug 31 19:11
→
SJUAug 31 21:55
AA 1689Boeing 737
7h 34m·1 stop
$417 USD
American Airlines
STLAug 31 15:25
→
CLTAug 31 18:22
AA 831Boeing 737
1h 54m layover
American Airlines
CLTAug 31 20:16
→
SJUAug 31 23:59
AA 2830Airbus A321
15h 1m·2 stops
$417 USD
American Airlines
STLAug 31 17:42
→
PHLAug 31 21:03
AA 3049Airbus A319
47m layover
American Airlines
PHLAug 31 21:50
→
MIASep 1 00:48
AA 2936Airbus A321
6h 12m layover
American Airlines
MIASep 1 07:00
→
SJUSep 1 09:43
AA 1780Airbus A321
6h 42m·1 stop
$468 USD
Delta Air Lines
STLAug 31 06:00
→
ATLAug 31 08:38
DL 1524Boeing 737
1h 17m layover
Delta Air Lines
ATLAug 31 09:55
→
SJUAug 31 13:42
DL 1882Airbus A321
8h 50m·1 stop
$548 USD
American Airlines
STLAug 31 13:25
→
ORDAug 31 15:01
AA 6355Canadair RJ 700
2h 19m layover
American Airlines
ORDAug 31 17:20
→
SJUAug 31 23:15
AA 1865Boeing 737
8h 23m·1 stop
$618 USD
United Airlines
STLAug 31 11:15
→
IAHAug 31 13:32
UA 5566Embraer 175
1h 34m layover
United Airlines
IAHAug 31 15:06
→
SJUAug 31 20:38
UA 701Boeing 737MAX 9 Passenger
8h 27m·1 stop
$704 USD
United Airlines
STLAug 31 06:15
→
IAHAug 31 08:32
UA 6258Embraer 175
1h 38m layover
United Airlines
IAHAug 31 10:10
→
SJUAug 31 15:42
UA 1192Boeing 737MAX 9 Passenger
7h 44m·1 stop
$708 USD
United Airlines
STLAug 31 06:00
→
ORDAug 31 07:33
UA 4423Bombardier Regional Jet 550
1h 22m layover
United Airlines
ORDAug 31 08:55
→
SJUAug 31 14:44
UA 1996Airbus A321neo
8h 38m·1 stop
$932 USD
Delta Air Lines
STLAug 31 07:00
→
ATLAug 31 09:37
DL 1536Boeing 737
3h 23m layover
Delta Air Lines
ATLAug 31 13:00
→
SJUAug 31 16:38
DL 1946Boeing 737
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