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
Monday, October 12th, 2026
Outbound Flights
15h 38m·2 stops
$431 USD
STLOct 12 17:08
→DCAOct 12 20:18
AA 2286Airbus A319
33m layover
DCAOct 12 20:51
→MIAOct 12 23:36
AA 667Boeing 737MAX 8 Passenger
7h 29m layover·Overnight
MIAOct 13 07:05
→SJUOct 13 09:46
AA 1852Airbus A321
8h 3m·1 stop
$588 USDSTLOct 12 05:00
→ORDOct 12 06:26
AA 1926Airbus A319
1h 47m layover
ORDOct 12 08:13
→SJUOct 12 14:03
AA 1865Boeing 737
7h 19m·1 stop
$618 USDSTLOct 12 05:00
→MIAOct 12 08:49
AA 1716Boeing 737
1h 45m layover
MIAOct 12 10:34
→SJUOct 12 13:19
AA 1613Airbus A321neo
6h 45m·1 stop
$618 USDSTLOct 12 07:16
→CLTOct 12 10:13
AA 712Boeing 737
1h 2m layover
CLTOct 12 11:15
→SJUOct 12 15:01
AA 783Airbus A321
10h 30m·1 stop
$708 USD
STLOct 12 12:20
→EWROct 12 15:47
UA 560Airbus A319
4h layover
EWROct 12 19:47
→SJUOct 12 23:50
UA 1543Boeing 737MAX 9 Passenger
10h 36m·1 stop
$803 USDSTLOct 12 11:21
→PHLOct 12 14:40
AA 1739Airbus A319
3h 50m layover
PHLOct 12 18:30
→SJUOct 12 22:57
AA 2433Boeing 737
6h 21m·1 stop
$900 USD
STLOct 12 06:00
→ATLOct 12 08:38
DL 1524Boeing 737
1h 13m layover
ATLOct 12 09:51
→SJUOct 12 13:21
DL 1882Airbus A321neo
6h 34m·1 stop
$900 USDSTLOct 12 14:25
→ATLOct 12 17:00
DL 1102Boeing 737
1h 32m layover
ATLOct 12 18:32
→SJUOct 12 21:59
DL 1861Boeing 737
7h 44m·1 stop
$1,341 USDSTLOct 12 06:00
→ORDOct 12 07:36
UA 4423Bombardier Regional Jet 550
1h 19m layover
ORDOct 12 08:55
→SJUOct 12 14:44
UA 1996Airbus A321neo