$113 Cheap flight deals from St. Louis (STL) to San Juan (SJU)

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This Weekend's Flight Deals from St. Louis to San Juan

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 31 - Sun, Nov 2
STL
Lambert-St. Louis Intl.
SJU
Luis Munoz Marin Intl.
$410 Roundtrip, found 9 hours ago
$410
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Fri, Oct 31 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Sun, Nov 2, priced at $410 found 9 hours ago

Airfares from $113 One Way, $220 Round Trip from St. Louis to San Juan

Prices starting at $220 for return flights and $113 for one-way flights to San Juan were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, May 12 - Wed, May 13
STL
St. Louis
SJU
San Juan
$220 Roundtrip, found 23 hours ago
$220
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Tue, May 12 from St. Louis to San Juan, returning Wed, May 13, priced at $220 found 23 hours ago
Tue, Mar 24 - Wed, Mar 25
STL
St. Louis
SJU
San Juan
$225 Roundtrip, found 9 hours ago
$225
Roundtrip
found 9 hours ago
Select Delta flight, departing Tue, Mar 24 from St. Louis to San Juan, returning Wed, Mar 25, priced at $225 found 9 hours ago
Sat, Jan 17 - Thu, Jan 22
STL
St. Louis
SJU
San Juan
$231 Roundtrip, found 1 day ago
$231
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Jan 17 from St. Louis to San Juan, returning Thu, Jan 22, priced at $231 found 1 day ago
Sun, Jan 18 - Sat, Jan 24
STL
St. Louis
SJU
San Juan
$250 Roundtrip, found 4 days ago
$250
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Jan 18 from St. Louis to San Juan, returning Sat, Jan 24, priced at $250 found 4 days ago
Wed, Jan 21 - Tue, Jan 27
STL
St. Louis
SJU
San Juan
$253 Roundtrip, found 6 days ago
$253
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Wed, Jan 21 from St. Louis to San Juan, returning Tue, Jan 27, priced at $253 found 6 days ago

San Juan economy flight packages

Price found within the past 48 hours. Click for updated prices.
Condado Vanderbilt Hotel
5.0-star property

Condado Vanderbilt Hotel

9.2/10 Wonderful! (1,602 reviews)

Dec 10 - Dec 14

4 night stay

St. Louis (STL) to San Juan (SJU)

Southwest Airlines • Non-stop roundtrip • Coach
Save 100% on your flight
Price was $1,301, price is now $852 per person
$852
per person
found 24 hours ago
The beach view was amazing, the resort was peaceful and relaxing while also having its areas of music dancing and entertainment. The staff was friendly and always ready to help provide anything we needed. We will definitely be staying here again.

Reviewed on Sep 27, 2025

Dorado Beach 5 Bedroom Villa
3.5-star property

Dorado Beach 5 Bedroom Villa

10/10 Exceptional! (1 review)

Dec 14 - Dec 20

6 night stay

St. Louis (STL) to San Juan (SJU)

Southwest Airlines • Non-stop roundtrip • Coach
Save 100% on your flight
Price was $2,650, price is now $1,617 per person
$1,617
per person
found 6 hours ago
Aire de O:live
4.0-star property

Aire de O:live

9/10 Wonderful! (290 reviews)

Dec 24 - Dec 27

3 night stay

St. Louis (STL) to San Juan (SJU)

Southwest Airlines • Non-stop • Coach

San Juan (SJU) to St. Louis (STL)

American Airlines • Non-stop • Coach
Save 100% on your flight
Price was $1,533, price is now $1,025 per person
$1,025
per person
found 1 day ago
The staff were all fantastic. Very nice people. I wasn't crazy about the room. The windows are like an office building- they don't open. The Wifi was quite spotty. The sliding door for the toilet didnt work. The clothes closet didn't close properly. The bathroom sink was beautiful but the joystick spout was weird. Small complaints, really. But I would really have loved an open window...Great beach!

Reviewed on Apr 9, 2025

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San Juan packages with premium economy flights

Price found within the past 48 hours. Click for updated prices.
Aire de O:live
4.0-star property

Aire de O:live

9/10 Wonderful! (290 reviews)

Dec 1 - Dec 4

3 night stay

St. Louis (STL) to San Juan (SJU)

Delta • Non-stop roundtrip • PremiumEconomy
Price was $1,391, price is now $1,000 per person
$1,000
per person
found 1 day ago
The staff were all fantastic. Very nice people. I wasn't crazy about the room. The windows are like an office building- they don't open. The Wifi was quite spotty. The sliding door for the toilet didnt work. The clothes closet didn't close properly. The bathroom sink was beautiful but the joystick spout was weird. Small complaints, really. But I would really have loved an open window...Great beach!

Reviewed on Apr 9, 2025

Fairmont El San Juan Hotel
5.0-star property

Fairmont El San Juan Hotel

8.4/10 Very Good! (2,018 reviews)

Dec 1 - Dec 4

3 night stay

St. Louis (STL) to San Juan (SJU)

Delta • Non-stop roundtrip • PremiumEconomy
Price was $1,517, price is now $1,096 per person
$1,096
per person
found 1 day ago
3rd shift front desk was rude and un helpful

Reviewed on Oct 6, 2025

Condado Vanderbilt Hotel
5.0-star property

Condado Vanderbilt Hotel

9.2/10 Wonderful! (1,602 reviews)

Dec 1 - Dec 4

3 night stay

St. Louis (STL) to San Juan (SJU)

Delta • Non-stop roundtrip • PremiumEconomy
Price was $1,350, price is now $1,076 per person
$1,076
per person
found 1 day ago
The beach view was amazing, the resort was peaceful and relaxing while also having its areas of music dancing and entertainment. The staff was friendly and always ready to help provide anything we needed. We will definitely be staying here again.

Reviewed on Sep 27, 2025

Don't see what you're looking for?
See all available trips from St. Louis to San Juan
View all trips

More About Flying To San Juan from St. Louis

Route Information for Flights from St. Louis to San Juan

Origin Airport IATA Code
STL
Destination Airport IATA Code
SJU
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

St. Louis to San Juan

Looking for cheap St. Louis to San Juan flights? Orbitz has the cheapest air fares for flights from St. Louis to San Juan. Plus, with our cutting-edge mobile tools, travel planning has never been easier or more wallet-friendly.

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Use the Orbitz app or the mobile Orbitz site, m.orbtiz.com, to see information about your St. Louis to San Juan flights anytime you need it. Your itinerary is also sent to your email address for reference. Access updates on your flights from St. Louis to San Juan on your mobile device too, including delays and baggage claim details.

Cheap Air Ticket Prices Guaranteed

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Frequently asked questions

Am I able to catch a flight from St. Louis to San Juan now?
The Covid-19 Travel Advisor can help you with queries about travel restrictions and quarantine requirements when taking a flight from St. Louis to San Juan.
What is the shortest flight from St. Louis to San Juan?
The quickest flight from Lambert-St. Louis Intl. Airport (STL) to San Juan Airport (SJU-Luis Munoz Marin Intl.) is 4 hours and 57 minutes. Pack a few things in your carry-on to help pass the time, like a gripping read or your travel journal.
If I am not able to travel due to COVID-19, can I cancel my flight to San Juan?
We get that traveling right now has its challenges, so it's good to know that many reservations booked through us are able to be cancelled or changed. If your travel plans to San Juan have been affected by COVID-19, a lot of airlines are making things easier by offering credits to use at a later date. Just sign in to your account and you'll quickly see what options are available. Our Customer Service Portal is the place to go for more information.
Are there flights to San Juan with flexible change policies?
In most cases you'll have the option to reschedule your flight to San Juan without a change fee. All you have to do then is pay the difference between the old flight and the new one. Look for the "no change fees" filter and book with confidence.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2020 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data the cheapest month to fly is August. Perfect for those who need a weekend getaway, or just a break from it all before the weather changes. Be aware that the most expensive time to fly is the height of summer, with ticket prices peaking in the month of June.
How can I save money on flights?
To really save big on your next vacation, think outside the box. Select two different airlines or fare types for your return trip and you'll generally get a much better deal. Those who tried this on Orbitz in 2020 saved up to 45% on their airfares. Get mixing and matching today!

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.