Cheap Flight Tickets from St Louis (STL) to San Juan (SJU), Starting at $246

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

$246

WN Southwest Airlines • 2 stops • 17h 5m

Nov 09 – Nov 11

The cheapest round trip flight from St Louis to San Juan (STL-SJU-STL) is currently $246

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Fastest Flight

14h 15m

The fastest nonstop flight from St Louis to San Juan (STL-SJU) takes 14h 15m

Top Airlines Flying from St Louis to San Juan

Southwest Airlines-WN

Southwest 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.

Nov 09 - Nov 11, Economy
WN
St Louis → San Juan
17h 5m
8:25 AM - 8:50 PM • 2 stops
WN
St Louis → San Juan
10h 40m
5:50 PM - 10:30 PM • 1 stop
$246
Southwest Airlines
Nov 09 - Nov 11, Economy
WN
St Louis → San Juan
17h
8:30 AM - 8:50 PM • 2 stops
WN
St Louis → San Juan
10h 40m
5:50 PM - 10:30 PM • 1 stop
$246
Southwest Airlines
Nov 08 - Nov 10, Economy
WN
St Louis → San Juan
16h 40m
5:00 AM - 5:00 PM • 1 stop
WN
St Louis → San Juan
11h 50m
12:30 PM - 5:40 PM • 1 stop
$248
Southwest Airlines
Nov 08 - Nov 10, Economy
WN
St Louis → San Juan
17h 10m
10:30 AM - 11:00 PM • 3 stops
WN
St Louis → San Juan
10h 40m
5:50 PM - 10:30 PM • 1 stop
$248
Southwest Airlines
Nov 08 - Nov 10, Economy
WN
St Louis → San Juan
14h 15m
2:05 PM - 1:00 AM • 2 stops
WN
St Louis → San Juan
12h 30m
6:10 AM - 12:00 PM • 1 stop
$248
Southwest Airlines
Nov 08 - Nov 10, Economy
WN
St Louis → San Juan
16h 50m
5:40 AM - 5:50 PM • 1 stop
WN
St Louis → San Juan
11h 50m
12:30 PM - 5:40 PM • 1 stop
$249
Southwest 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 5:00 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 WN : USD 248
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 2:05 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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