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

Thursday, August 20th, 2026

Outbound Flights

10h 11m·1 stop
$417 USD
American Airlines
STLAug 20 05:00
→
MIAAug 20 08:53
AA 1716Boeing 737
4h 32m layover
American Airlines
MIAAug 20 13:25
→
SJUAug 20 16:11
AA 967Boeing 737
9h 20m·1 stop
$417 USD
American Airlines
STLAug 20 11:35
→
MIAAug 20 15:29
AA 477Boeing 737MAX 8 Passenger
3h 42m layover
American Airlines
MIAAug 20 19:11
→
SJUAug 20 21:55
AA 1689Boeing 737
15h 1m·2 stops
$417 USD
American Airlines
STLAug 20 17:42
→
PHLAug 20 21:03
AA 3049Airbus A319
47m layover
American Airlines
PHLAug 20 21:50
→
MIAAug 21 00:48
AA 2936Airbus A321
6h 12m layover
American Airlines
MIAAug 21 07:00
→
SJUAug 21 09:43
AA 1780Airbus A321
6h 40m·1 stop
$508 USD
American Airlines
STLAug 20 05:00
→
MIAAug 20 08:53
AA 1716Boeing 737
1h 2m layover
American Airlines
MIAAug 20 09:55
→
SJUAug 20 12:40
AA 1613Boeing 737
6h 57m·1 stop
$508 USD
American Airlines
STLAug 20 06:54
→
CLTAug 20 09:49
AA 712Boeing 737
1h 16m layover
American Airlines
CLTAug 20 11:05
→
SJUAug 20 14:51
AA 783Airbus A321
7h 34m·1 stop
$508 USD
American Airlines
STLAug 20 15:25
→
CLTAug 20 18:22
AA 831Boeing 737
1h 54m layover
American Airlines
CLTAug 20 20:16
→
SJUAug 20 23:59
AA 2830Airbus A321
6h 23m·1 stop
$578 USD
Delta Air Lines
STLAug 20 09:15
→
ATLAug 20 11:53
DL 1571Boeing 737
1h 7m layover
Delta Air Lines
ATLAug 20 13:00
→
SJUAug 20 16:38
DL 1946Boeing 737
10h 22m·1 stop
$618 USD
United Airlines
STLAug 20 12:28
→
EWRAug 20 16:00
UA 560Airbus A319
3h 47m layover
United Airlines
EWRAug 20 19:47
→
SJUAug 20 23:50
UA 1543Boeing 737MAX 9 Passenger
7h 44m·1 stop
$708 USD
United Airlines
STLAug 20 06:00
→
ORDAug 20 07:33
UA 4423Bombardier Regional Jet 550
1h 22m layover
United Airlines
ORDAug 20 08:55
→
SJUAug 20 14:44
UA 1996Airbus A321neo
8h 50m·1 stop
$773 USD
American Airlines
STLAug 20 13:25
→
ORDAug 20 15:01
AA 6355Canadair RJ 700
2h 19m layover
American Airlines
ORDAug 20 17:20
→
SJUAug 20 23:15
AA 1865Boeing 737
8h 27m·1 stop
$830 USD
United Airlines
STLAug 20 06:15
→
IAHAug 20 08:32
UA 4608Bombardier Regional Jet 550
1h 38m layover
United Airlines
IAHAug 20 10:10
→
SJUAug 20 15:42
UA 1192Boeing 737MAX 9 Passenger
6h 42m·1 stop
$932 USD
Delta Air Lines
STLAug 20 06:00
→
ATLAug 20 08:38
DL 1524Boeing 737
1h 17m layover
Delta Air Lines
ATLAug 20 09:55
→
SJUAug 20 13:42
DL 1882Airbus A321
8h 37m·1 stop
$932 USD
Delta Air Lines
STLAug 20 12:52
→
ATLAug 20 15:33
DL 566Boeing 737
3h 12m layover
Delta Air Lines
ATLAug 20 18:45
→
SJUAug 20 22:29
DL 1861Boeing 737
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