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, August 9th, 2026

Outbound Flights

17h 15m·1 stop
$417 USD
American Airlines
STLAug 9 05:00
→
ORDAug 9 06:31
AA 1926Airbus A319
10h 49m layover
American Airlines
ORDAug 9 17:20
→
SJUAug 9 23:15
AA 1865Boeing 737
6h 42m·1 stop
$468 USD
Delta Air Lines
STLAug 9 06:00
→
ATLAug 9 08:38
DL 1524Boeing 737
1h 17m layover
Delta Air Lines
ATLAug 9 09:55
→
SJUAug 9 13:42
DL 1882Airbus A321
8h 38m·1 stop
$508 USD
American Airlines
STLAug 9 05:00
→
MIAAug 9 08:53
AA 1716Boeing 737
2h 52m layover
American Airlines
MIAAug 9 11:45
→
SJUAug 9 14:38
AA 1341Airbus A321
12h 43m·1 stop
$508 USD
American Airlines
STLAug 9 09:32
→
ORDAug 9 11:00
AA 3568Embraer 170
6h 20m layover
American Airlines
ORDAug 9 17:20
→
SJUAug 9 23:15
AA 1865Boeing 737
9h 59m·1 stop
$523 USD
United Airlines
STLAug 9 18:30
→
IAHAug 9 20:50
UA 6284Embraer 175
3h 6m layover
United Airlines
IAHAug 9 23:56
→
SJUAug 10 05:29
UA 1497Boeing 737MAX 9 Passenger
6h 40m·1 stop
$548 USD
American Airlines
STLAug 9 05:00
→
MIAAug 9 08:53
AA 1716Boeing 737
1h 2m layover
American Airlines
MIAAug 9 09:55
→
SJUAug 9 12:40
AA 1613Boeing 737
8h 30m·1 stop
$548 USD
American Airlines
STLAug 9 05:23
→
CLTAug 9 08:17
AA 1515Boeing 737
2h 48m layover
American Airlines
CLTAug 9 11:05
→
SJUAug 9 14:53
AA 783Airbus A321
8h 50m·1 stop
$548 USD
American Airlines
STLAug 9 13:25
→
ORDAug 9 15:01
AA 6355Canadair RJ 700
2h 19m layover
American Airlines
ORDAug 9 17:20
→
SJUAug 9 23:15
AA 1865Boeing 737
8h 12m·1 stop
$588 USD
American Airlines
STLAug 9 05:42
→
DFWAug 9 07:40
AA 2261Airbus A320
1h 15m layover
American Airlines
DFWAug 9 08:55
→
SJUAug 9 14:54
AA 702Airbus A321neo
9h 20m·1 stop
$618 USD
American Airlines
STLAug 9 11:35
→
MIAAug 9 15:29
AA 477Boeing 737MAX 8 Passenger
3h 42m layover
American Airlines
MIAAug 9 19:11
→
SJUAug 9 21:55
AA 1689Boeing 737
7h 44m·1 stop
$623 USD
United Airlines
STLAug 9 06:00
→
ORDAug 9 07:30
UA 2805Boeing 737
1h 19m layover
United Airlines
ORDAug 9 08:49
→
SJUAug 9 14:44
UA 1996Airbus A321neo
8h 28m·1 stop
$649 USD
United Airlines
STLAug 9 06:14
→
IAHAug 9 08:31
UA 6283Embraer 175
1h 32m layover
United Airlines
IAHAug 9 10:03
→
SJUAug 9 15:42
UA 1192Boeing 737MAX 9 Passenger
8h 28m·1 stop
$664 USD
United Airlines
STLAug 9 11:10
→
IAHAug 9 13:25
UA 6213Embraer 175
1h 38m layover
United Airlines
IAHAug 9 15:03
→
SJUAug 9 20:38
UA 701Boeing 737MAX 9 Passenger
7h 29m·1 stop
$665 USD
United Airlines
STLAug 9 12:55
→
IADAug 9 16:07
UA 4454Bombardier Regional Jet 550
1h 17m layover
United Airlines
IADAug 9 17:24
→
SJUAug 9 21:24
UA 2025Boeing 737MAX 9 Passenger
8h 38m·1 stop
$678 USD
Delta Air Lines
STLAug 9 07:00
→
ATLAug 9 09:37
DL 1536Boeing 737
3h 23m layover
Delta Air Lines
ATLAug 9 13:00
→
SJUAug 9 16:38
DL 1946Boeing 737
6h 18m·1 stop
$693 USD
American Airlines
STLAug 9 07:35
→
CLTAug 9 10:30
AA 712Boeing 737
35m layover
American Airlines
CLTAug 9 11:05
→
SJUAug 9 14:53
AA 783Airbus A321
6h 23m·1 stop
$932 USD
Delta Air Lines
STLAug 9 09:15
→
ATLAug 9 11:53
DL 1571Boeing 717
1h 7m layover
Delta Air Lines
ATLAug 9 13:00
→
SJUAug 9 16:38
DL 1946Boeing 737
27h 10m·1 stop
$10,721 USD
United Airlines
STLAug 9 19:05
→
ORDAug 9 20:39
UA 4165Bombardier Regional Jet 550
20h 41m layover·Overnight
American Airlines
ORDAug 10 17:20
→
SJUAug 10 23:15
AA 1865Boeing 737
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