Cheap Flight Tickets from St Louis (STL) to San Juan (SJU), Starting at $337

Good to Know: Cheapest and Fastest STL - SJU Flights

Useful information for finding best airline tickets from Lambert St Louis International to Luis Munoz Marin International on your next trip.

Cheapest Round Trip Flight

$337

WN Southwest Airlines • 1 stop • 13h 50m

Jul 16 – Jul 21

The cheapest round trip flight from St Louis to San Juan (STL-SJU-STL) is currently $337

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Fastest Flight

10h 32m

The fastest nonstop flight from St Louis to San Juan (STL-SJU) takes 10h 32m

Top Airlines Flying from St Louis to San Juan

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Latest Flight Deals from St Louis (STL) to San Juan (SJU)

Compare and book low fare round-trip air tickets from St Louis to San Juan. Ideal for travelers with confirmed return itineraries.

Jul 16 - Jul 21, Economy
WN
St Louis → San Juan
13h 50m
9:55 AM - 7:25 PM • 1 stop
WN
St Louis → San Juan
10h 25m
9:50 AM - 3:15 PM • 1 stop
$337
Southwest Airlines
Jul 16 - Jul 21, Economy
WN
St Louis → San Juan
15h 15m
11:00 AM - 9:15 PM • 1 stop
WN
St Louis → San Juan
10h 25m
9:50 AM - 3:15 PM • 1 stop
$337
Southwest Airlines
Jul 16 - Jul 21, Economy
DL
St Louis → San Juan
17h 1m
9:24 AM - 8:45 PM • 1 stop
DL
St Louis → San Juan
11h 57m
6:00 AM - 12:17 PM • 1 stop
$620
Delta Airlines
Jul 16 - Jul 21, Economy
DL
St Louis → San Juan
14h 14m
10:51 AM - 8:45 PM • 1 stop
DL
St Louis → San Juan
11h 56m
2:21 PM - 8:37 PM • 1 stop
$620
Delta Airlines
Jul 16 - Jul 21, Economy
DL
St Louis → San Juan
10h 32m
6:00 AM - 1:32 PM • 1 stop
DL
St Louis → San Juan
11h 56m
2:21 PM - 8:37 PM • 1 stop
$620
Delta Airlines
Jul 16 - Jul 21, Economy
F9
St Louis → San Juan
24h 8m
4:09 PM - 7:57 AM • 1 stop
F9
St Louis → San Juan
15h 24m
6:32 AM - 2:56 PM • 1 stop
$750
Frontier Airlines

Fly from St Louis to San Juan with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from St Louis to San Juan? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on St Louis to San Juan Flights

What are the airports in St Louis?
STL
What’s the most popular airline flying from STL to SJU?
The most popular airline flying from St Louis to San Juan are
Can I fly from STL to SJU non-stop?
NO
Which airlines fly nonstop between St Louis and San Juan?
The non-stop flights between St Louis and San Juan are .
What’s the earliest departure time from STL to SJU Airport?
The earliest flight leaves STL at 6:00 am and lands in SJU - Luis Munoz Marin International
What are the airports in San Juan?
SJU
Can I make changes to my St Louis to San Juan flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from STL to SJU?
Read the fare rules of the St Louis to San Juan air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from St Louis and San Juan?
operate flights between St Louis and San Juan
How long does a flight from St Louis to San Juan take?
It takes approximately 5 hour to fly non-stop from STL to SJU, which is 2024.49 miles by air.
Which airlines provide the cheapest flights from St Louis (STL) to San Juan (SJU) ?
In the past couple of days, the cheapest tickets to SJU from STL were found on F9 : USD 750
Do I need a passport to fly between STL and SJU?
Yes
What’s the latest departure time from STL to SJU ?
The last flight leaves STL at 4:09 pm

St Louis (STL) to San Juan (SJU): Airport Information

Origin Airport Lambert St Louis International , St Louis, US
Destination Airport Luis Munoz Marin International , San Juan, PR
Distance 2024 miles

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