Cheap flights from St. Louis (STL) to San Juan from $92
This is the cheapest one-way flight price, found on 11/29. Prices may vary by date and flight preferences.
Flights from San Juan to St. Louis
How to find the cheapest flight from St. Louis (STL) to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 30, 2023.
Popular in | June |
|---|---|
Cheapest in | April |
Round-trip from | $250 |
One-way from | $153 |
STL - SJU Price | $250 - $570 |
|---|---|
SJU Temperature | 77 - 82.4 °F |
SJU Rainfall | 2.2 - 6.1 inches |
How far in advance should I book a flight from St. Louis to San Juan?
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 44 days in advance, which can save you up to 41% on flights from St. Louis to San Juan compared to booking the week you need them. Waiting 44 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $268. For sooner than that we have options available in the next 3 days from $597.
What is the cheapest month to fly from St. Louis to San Juan?
April is one of the best times of the year to fly to San Juan from St. Louis. Prices for April average $482 per person but you can even find prices for as low as $172. The most expensive prices can be found in the month of June. Opting for a April flight can save you 23% on your journey compared to booking in June
When is the cheapest time to fly from St. Louis to San Juan (STL - SJU)?
When flying from St. Louis to San Juan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Cheap American Airlines flights from St. Louis to San Juan
Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and San Juan. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.
Find some of the cheapest American Airlines flights traveling from St. Louis to San Juan. Come back soon if you're not finding the exact deal you're looking for.
Cheap Spirit Airlines flights from St. Louis to San Juan
Explore cheap flight options specifically provided by Spirit Airlines for the route between St. Louis and San Juan. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.
Take a gander at the lowest prices we've found on Spirit Airlines flights from St. Louis to San Juan. Deals are refreshing constantly so come back soon for more options.
Cheap St. Louis to San Juan flights in November & December 2023
Find cheap flight options from St. Louis to San Juan specifically for the months of November and December 2023. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,965,316 searches. Prices were last updated on November 30, 2023.
These are some of the most attractive deals on flights from St. Louis to San Juan in 2023. Check back soon for alternative fares.
St. Louis to San Juan 2023 flight deals
Discover exclusive flight deals for travel between St. Louis and San Juan in 2023. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.
These are some of the most attractive deals on flights from St. Louis to San Juan in 2023. Check back soon for alternative fares.
St. Louis to San Juan flights leaving soon
Find last-minute flight options from St. Louis to San Juan for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.
Book one of these great deals on flights from St. Louis to San Juan. Users should be sure to double check the price, date, and time of their last-minute flight.
One-way flights to San Juan from St. Louis
Search for one-way flight options from St. Louis to San Juan. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.
If you're seeking multiple options on one-way flights from St. Louis to San Juan, be sure to check out these deals, which are updated often. Those needing a return flight from St. Louis to San Juan can use the search form above.
Find flights from St. Louis to San Juan within your budget
Customize your flight search to find flights from St. Louis to San Juan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.
Fly from
Fly to
Budget
$166 - $397
Route
Depart
Return
Price
Lambert-St LouisSan Juan Luis Munoz Marin Intl
STL - SJU
STLSJU
Lambert-St Louis
Sat 1/13
1 stop10h 28m
San Juan Luis Munoz Marin Intl
Sat 1/20
1 stop6h 55m
Lambert-St LouisSan Juan Luis Munoz Marin Intl
STL - SJU
STLSJU
Lambert-St Louis
Sat 1/13
1 stop10h 28m
San Juan Luis Munoz Marin Intl
Fri 1/19
1 stop7h 55m
Lambert-St LouisSan Juan Luis Munoz Marin Intl
STL - SJU
STLSJU
Lambert-St Louis
Thu 1/25
1 stop5h 58m
San Juan Luis Munoz Marin Intl
Fri 1/26
1 stop7h 55m
Lambert-St LouisSan Juan Luis Munoz Marin Intl
STL - SJU
STLSJU
Lambert-St Louis
Sat 1/13
1 stop14h 14m
San Juan Luis Munoz Marin Intl
Fri 1/19
1 stop20h 08m
Lambert-St LouisSan Juan Luis Munoz Marin Intl
STL - SJU
STLSJU
Lambert-St Louis
Sat 1/13
2 stops25h 41m
San Juan Luis Munoz Marin Intl
Sat 1/20
1 stop6h 55m
Lambert-St LouisSan Juan Luis Munoz Marin Intl
STL - SJU
STLSJU
Lambert-St Louis
Thu 2/1
1 stop5h 58m
San Juan Luis Munoz Marin Intl
Tue 2/13
1 stop9h 50m
Lambert-St LouisSan Juan Luis Munoz Marin Intl
STL - SJU
STLSJU
Lambert-St Louis
Thu 2/29
1 stop8h 02m
San Juan Luis Munoz Marin Intl
Mon 3/4
1 stop7h 49m
Lambert-St LouisSan Juan Luis Munoz Marin Intl
STL - SJU
STLSJU
Lambert-St Louis
Mon 4/22
1 stop15h 05m
San Juan Luis Munoz Marin Intl
Fri 4/26
1 stop6h 58m
Lambert-St LouisSan Juan Luis Munoz Marin Intl
STL - SJU
STLSJU
Lambert-St Louis
Mon 2/5
2 stops25h 51m
San Juan Luis Munoz Marin Intl
Thu 2/8
2 stops15h 15m
Reviews of airlines servicing San Juan
Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated November 30, 2023.
See what other customers who have flown with American Airlines, Spirit Airlines and United Airlines from St. Louis to San Juan have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Crew
Boarding
Comfort
Food
Overall
Reviews
The flight was not listed on the screens so we had to guess which gate to go to from another similar flight and got lucky. Flight crew seemed irritated to be there.
Entertainment
Crew
Boarding
Comfort
Food
Overall
Reviews
The flight was not listed on the screens so we had to guess which gate to go to from another similar flight and got lucky. Flight crew seemed irritated to be there.
Entertainment
Crew
Boarding
Comfort
Food
Overall
Reviews
The flight was not listed on the screens so we had to guess which gate to go to from another similar flight and got lucky. Flight crew seemed irritated to be there.
Entertainment
Crew
Boarding
Comfort
Food
Overall
Reviews
The flight was not listed on the screens so we had to guess which gate to go to from another similar flight and got lucky. Flight crew seemed irritated to be there.
Entertainment
Crew
Boarding
Comfort
Food
Overall
Reviews
The flight was not listed on the screens so we had to guess which gate to go to from another similar flight and got lucky. Flight crew seemed irritated to be there.
Related info for your journey
Find useful and relevant information for your journey from St. Louis to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly from for flights from St. Louis to San Juan?
Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to San Juan. On average, Lambert-St Louis has 0 outbound flights to San Juan per day from 6 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.
Can I find flights from St. Louis to San Juan for under $200 on Cheapflights?
Yes, there are multiple flights from St. Louis to San Juan for under $200. The cheapest flight booked recently is on Spirit Airlines for just $166, but on average you can expect to pay $199.
Are there last-minute flights available from St. Louis to San Juan for under $300?
There are currently 20+ open flights from St. Louis to San Juan within the next 7 days for less than $300.
What is the cheapest airline to fly from St. Louis to San Juan round-trip?
Our cheapest airline available from St. Louis to San Juan is Spirit Airlines. Our recent data shows that you can find tickets from as low as $166 on this airline. Spirit Airlines is 65% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from St. Louis to San Juan one-way?
To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $92. Frontier flights start at $110 while deals on American Airlines start at $160 one-way.
What are the most popular airlines that fly from St. Louis to San Juan?
Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from St. Louis to San Juan.
What does STL to SJU mean?
Great question - STL to SJU just means Lambert-St Louis Airport to San Juan Luis Munoz Marin Intl Airport. Now you’ll know what these unique codes when you look for flights! San Juan Isla Grande Airport (SIG), Ponce Mercedita Airport (PSE), Vieques Airport (VQS), Culebra Airport (CPX), Ceiba J. Aponte de la Torre Airport (NRR) are some additional IATA codes for airports related to your trip.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Complete your tripComplete your trip to San Juan by adding a car rental and/or hotel reservation to your travel itinerary.
Complete your trip to San Juan by adding a car rental and/or hotel reservation to your travel itinerary.
Top 6 airlines flying from St. Louis to San Juan
Discover the top 6 airlines that operate flights from St. Louis to San Juan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,965,316 searches. Data last updated November 30, 2023.
Search flights to San Juan by cabin class
Hourly flight availability from St. Louis to San Juan
Find hourly flight availability from St. Louis to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 30, 2023.
| 100%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 0%of flight departures | Morning6 am to noon |
| 0%of flight departures | AfternoonNoon to 6 pm |
| 0%of flight departures | Evening6 pm to midnight |
Weekly flight availability from St. Louis to San Juan
Explore weekly flight availability from St. Louis to San Juan. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 30, 2023.
| Sunday | 0daily flights |
|---|---|
| Monday | 0daily flights |
| Tuesday | 0daily flights |
| Wednesday | 0daily flights |
| Thursday | 0daily flights |
| Friday | 0daily flights |
| Saturday | 2daily flights |
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from St. Louis to San Juan?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Juan from St. Louis today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from St. Louis to San Juan?
Cheapflights simply makes it quick and affordable to book flights from St. Louis to San Juan by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from St. Louis to San Juan with no change fees?
Yes! Cheapflights helps users easily find flights from St. Louis to San Juan with no change fees.
Can Cheapflights notify me if prices for flights from St. Louis to San Juan become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Juan from St. Louis today and book when prices fit your budget.