St. Louis (STL) to San Juan (SJU) flight deal in business from $373
STLLambert-Saint Louis International Airport
St. Louis, United States
SJULuis Muñoz Marín International Airport
San Juan, Puerto Rico
$469 USD
-20%$373 USD
Verified 15 days agoAugust 2026
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Rare Availability
9% of dates checked are available within 10% of the lowest price
Friday, August 21st, 2026
Outbound Flights
9h 20m·1 stop
$417 USD
STLAug 21 11:35
→MIAAug 21 15:29
AA 477Boeing 737MAX 8 Passenger
3h 42m layover
MIAAug 21 19:11
→SJUAug 21 21:55
AA 1689Boeing 737
7h 34m·1 stop
$417 USDSTLAug 21 15:25
→CLTAug 21 18:22
AA 831Boeing 737
1h 54m layover
CLTAug 21 20:16
→SJUAug 21 23:59
AA 2830Airbus A321
15h 1m·2 stops
$417 USDSTLAug 21 17:42
→PHLAug 21 21:03
AA 3049Airbus A319
47m layover
PHLAug 21 21:50
→MIAAug 22 00:48
AA 2936Airbus A321
6h 12m layover
MIAAug 22 07:00
→SJUAug 22 09:43
AA 1780Airbus A321
8h 37m·1 stop
$468 USD
STLAug 21 12:52
→ATLAug 21 15:33
DL 566Boeing 737
3h 12m layover
ATLAug 21 18:45
→SJUAug 21 22:29
DL 1861Boeing 737
6h 57m·1 stop
$508 USDSTLAug 21 06:54
→CLTAug 21 09:49
AA 712Boeing 737
1h 16m layover
CLTAug 21 11:05
→SJUAug 21 14:51
AA 783Airbus A321
8h 38m·1 stop
$618 USDSTLAug 21 05:00
→MIAAug 21 08:53
AA 1716Boeing 737
2h 52m layover
MIAAug 21 11:45
→SJUAug 21 14:38
AA 1341Airbus A321
8h 50m·1 stop
$618 USDSTLAug 21 13:25
→ORDAug 21 15:01
AA 6355Canadair RJ 700
2h 19m layover
ORDAug 21 17:20
→SJUAug 21 23:15
AA 1865Boeing 737
13h 20m·2 stops
$635 USD
STLAug 21 09:30
→ORDAug 21 11:00
UA 4808Embraer 175
3h 31m layover
ORDAug 21 14:31
→EWRAug 21 18:00
UA 1929Airbus A321neo
1h 47m layover
EWRAug 21 19:47
→SJUAug 21 23:50
UA 1543Boeing 737MAX 9 Passenger
8h 23m·1 stop
$651 USDSTLAug 21 11:15
→IAHAug 21 13:32
UA 5566Embraer 175
1h 34m layover
IAHAug 21 15:06
→SJUAug 21 20:38
UA 701Boeing 737MAX 9 Passenger
8h 27m·1 stop
$694 USDSTLAug 21 06:15
→IAHAug 21 08:32
UA 6258Embraer 175
1h 38m layover
IAHAug 21 10:10
→SJUAug 21 15:42
UA 1192Boeing 737MAX 9 Passenger
7h 44m·1 stop
$708 USDSTLAug 21 06:00
→ORDAug 21 07:33
UA 4423Bombardier Regional Jet 550
1h 22m layover
ORDAug 21 08:55
→SJUAug 21 14:44
UA 1996Airbus A321neo
6h 40m·1 stop
$803 USDSTLAug 21 05:00
→MIAAug 21 08:53
AA 1716Boeing 737
1h 2m layover
MIAAug 21 09:55
→SJUAug 21 12:40
AA 1613Boeing 737
6h 42m·1 stop
$932 USDSTLAug 21 06:00
→ATLAug 21 08:38
DL 1524Boeing 737
1h 17m layover
ATLAug 21 09:55
→SJUAug 21 13:42
DL 1882Airbus A321
6h 23m·1 stop
$932 USDSTLAug 21 09:15
→ATLAug 21 11:53
DL 1571Boeing 737
1h 7m layover
ATLAug 21 13:00
→SJUAug 21 16:38
DL 1946Boeing 737