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

Thursday, September 3rd, 2026

Outbound Flights

7h 34m·1 stop
$417 USD
American Airlines
STLSep 3 15:25
→
CLTSep 3 18:22
AA 831Boeing 737
1h 54m layover
American Airlines
CLTSep 3 20:16
→
SJUSep 3 23:59
AA 2830Airbus A321
10h 11m·1 stop
$588 USD
American Airlines
STLSep 3 05:00
→
MIASep 3 08:53
AA 1716Boeing 737
4h 32m layover
American Airlines
MIASep 3 13:25
→
SJUSep 3 16:11
AA 967Boeing 737
8h 38m·1 stop
$618 USD
American Airlines
STLSep 3 05:00
→
MIASep 3 08:53
AA 1716Boeing 737
2h 52m layover
American Airlines
MIASep 3 11:45
→
SJUSep 3 14:38
AA 1341Airbus A321
9h 20m·1 stop
$618 USD
American Airlines
STLSep 3 11:35
→
MIASep 3 15:29
AA 477Boeing 737MAX 8 Passenger
3h 42m layover
American Airlines
MIASep 3 19:11
→
SJUSep 3 21:55
AA 1689Boeing 737
8h 23m·1 stop
$644 USD
United Airlines
STLSep 3 11:15
→
IAHSep 3 13:32
UA 5566Embraer 175
1h 34m layover
United Airlines
IAHSep 3 15:06
→
SJUSep 3 20:38
UA 701Boeing 737MAX 9 Passenger
8h 27m·1 stop
$649 USD
United Airlines
STLSep 3 06:15
→
IAHSep 3 08:32
UA 4608Bombardier Regional Jet 550
1h 38m layover
United Airlines
IAHSep 3 10:10
→
SJUSep 3 15:42
UA 1192Boeing 737MAX 9 Passenger
8h 50m·1 stop
$773 USD
American Airlines
STLSep 3 13:25
→
ORDSep 3 15:01
AA 6355Canadair RJ 700
2h 19m layover
American Airlines
ORDSep 3 17:20
→
SJUSep 3 23:15
AA 1865Boeing 737
6h 40m·1 stop
$803 USD
American Airlines
STLSep 3 05:00
→
MIASep 3 08:53
AA 1716Boeing 737
1h 2m layover
American Airlines
MIASep 3 09:55
→
SJUSep 3 12:40
AA 1613Boeing 737
6h 57m·1 stop
$803 USD
American Airlines
STLSep 3 06:54
→
CLTSep 3 09:49
AA 712Boeing 737
1h 16m layover
American Airlines
CLTSep 3 11:05
→
SJUSep 3 14:51
AA 783Airbus A321
6h 42m·1 stop
$932 USD
Delta Air Lines
STLSep 3 06:00
→
ATLSep 3 08:38
DL 1524Boeing 737
1h 17m layover
Delta Air Lines
ATLSep 3 09:55
→
SJUSep 3 13:42
DL 1882Airbus A321
8h 38m·1 stop
$932 USD
Delta Air Lines
STLSep 3 07:00
→
ATLSep 3 09:37
DL 1536Boeing 737
3h 23m layover
Delta Air Lines
ATLSep 3 13:00
→
SJUSep 3 16:38
DL 1946Boeing 737
8h 37m·1 stop
$932 USD
Delta Air Lines
STLSep 3 12:52
→
ATLSep 3 15:33
DL 566Boeing 737
3h 12m layover
Delta Air Lines
ATLSep 3 18:45
→
SJUSep 3 22:29
DL 1861Boeing 737
7h 44m·1 stop
$1,346 USD
United Airlines
STLSep 3 06:00
→
ORDSep 3 07:33
UA 4423Bombardier Regional Jet 550
1h 22m layover
United Airlines
ORDSep 3 08:55
→
SJUSep 3 14:44
UA 1996Airbus A321neo
27h 22m·1 stop
$10,895 USD
United Airlines
STLSep 3 18:53
→
ORDSep 3 20:29
UA 4616Bombardier Regional Jet 550
20h 51m layover·Overnight
American Airlines
ORDSep 4 17:20
→
SJUSep 4 23:15
AA 1865Boeing 737
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