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 16 days agoOctober 2026
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Rare Availability
9% of dates checked are available within 10% of the lowest price
Thursday, October 1st, 2026
Outbound Flights
7h 54m·1 stop
$417 USD
STLOct 1 05:00
→MIAOct 1 08:44
AA 1716Boeing 737
2h 28m layover
MIAOct 1 11:12
→SJUOct 1 13:54
AA 1613Airbus A321
14h 39m·2 stops
$417 USDSTLOct 1 17:45
→PHLOct 1 21:07
AA 3049Airbus A319
56m layover
PHLOct 1 22:03
→MIAOct 2 00:59
AA 2936Airbus A321
5h 46m layover
MIAOct 2 06:45
→SJUOct 2 09:24
AA 3033Airbus A321
6h 47m·1 stop
$578 USD
STLOct 1 06:00
→ATLOct 1 08:35
DL 1524Boeing 737
1h 32m layover
ATLOct 1 10:07
→SJUOct 1 13:47
DL 1882Airbus A321
18h 13m·1 stop
$579 USDSTLOct 1 14:11
→MIAOct 1 17:57
AA 477Boeing 737MAX 8 Passenger
12h 48m layover·Overnight
MIAOct 2 06:45
→SJUOct 2 09:24
AA 3033Airbus A321
8h 27m·1 stop
$618 USD
STLOct 1 06:15
→IAHOct 1 08:27
UA 1371Boeing 737MAX 8 Passenger
1h 43m layover
IAHOct 1 10:10
→SJUOct 1 15:42
UA 1192Boeing 737MAX 9 Passenger
6h 57m·1 stop
$618 USDSTLOct 1 06:53
→CLTOct 1 09:50
AA 1515Airbus A321
1h 15m layover
CLTOct 1 11:05
→SJUOct 1 14:50
AA 783Airbus A321
7h 44m·1 stop
$657 USDSTLOct 1 06:00
→ORDOct 1 07:36
UA 4423Bombardier Regional Jet 550
1h 19m layover
ORDOct 1 08:55
→SJUOct 1 14:44
UA 1996Airbus A321neo
6h 49m·1 stop
$718 USDSTLOct 1 14:30
→ATLOct 1 17:05
DL 566Boeing 737
1h 40m layover
ATLOct 1 18:45
→SJUOct 1 22:19
DL 1861Boeing 737