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Cheap flights from St. Louis (STL) to San Juan from $72

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — SJU
Jun 5 — Jun 121
From?
To?
Wed 6/5
Wed 6/12
1 adult, Economy
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The best prices from Lambert-St Louis to San Juan are usually found in April or September, booked 90 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from St. Louis 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 May 31, 2024.

Popular in

December

Cheapest in

April

Round-trip from

$247

One-way from

$151
High demand for flights, 22% potential price rise
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Best time to find cheap flights, 25% potential price drop
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From Lambert-St Louis to San Juan
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One-way flight from Lambert-St Louis to San Juan
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What is the cheapest day to fly round-trip from St. Louis to San Juan?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 21% when planning your travel around this day of the week.

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 16 days in advance, which can save you up to 15% on flights from St. Louis to San Juan compared to booking the week you need them. Waiting 16 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 $311. For sooner than that we have options available in the next 3 days from $312.

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 $457 per person but you can even find prices for as low as $196. The most expensive prices can be found in the month of December. Opting for a April flight can save you 28% on your journey compared to booking in December

What is the cheapest time of day to fly from STL to SJU?

When flying from St. Louis to San Juan, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 37% versus a flight in the morning.

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 2,765,679 searches. Data last updated May 31, 2024.
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.
Sat 8/245:20 amSTL - SJU
1 stop8h 40mAmerican Airlines
Fri 9/132:10 amSJU - STL
2 stops13h 52mAmerican Airlines
Deal found 5/30$311
Wed 8/215:10 amSTL - SJU
1 stop6h 35mAmerican Airlines
Wed 8/213:50 pmSJU - STL
1 stop8h 33mAmerican Airlines
Deal found 5/30$313
Sat 9/79:00 amSTL - SJU
2 stops13h 59mAmerican Airlines
Thu 9/128:03 amSJU - STL
2 stops9h 12mAmerican Airlines
Deal found 5/30$341
Tue 8/272:15 pmSTL - SJU
1 stop7h 57mAmerican Airlines
Wed 9/48:03 amSJU - STL
2 stops14h 12mAmerican Airlines
Deal found 5/30$343
Wed 11/611:58 amSTL - SJU
2 stops10h 40mAmerican Airlines
Tue 11/196:00 amSJU - STL
2 stops9h 57mAmerican Airlines
Deal found 5/30$373
Wed 10/26:00 amSTL - SJU
2 stops9h 34mAmerican Airlines
Fri 10/112:10 amSJU - STL
2 stops8h 54mAmerican Airlines
Deal found 5/30$398
Thu 9/56:00 amSTL - SJU
2 stops9h 34mAmerican Airlines
Sun 9/812:05 pmSJU - STL
1 stop12h 16mAmerican Airlines
Deal found 5/30$399
Wed 8/215:30 amSTL - SJU
2 stops8h 45mAmerican Airlines
Wed 8/215:35 pmSJU - STL
2 stops15h 44mAmerican Airlines
Deal found 5/30$421
Sat 8/37:50 pmSTL - SJU
1 stop8h 10mAmerican Airlines
Tue 8/1312:05 pmSJU - STL
2 stops10h 13mAmerican Airlines
Deal found 5/30$429

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 2,765,679 searches. Data last updated May 31, 2024.
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.
Tue 8/2710:34 amSTL - SJU
1 stop7h 37mSpirit Airlines
Wed 9/47:57 pmSJU - STL
1 stop22h 33mSpirit Airlines
Deal found 5/30$141
Tue 8/2710:34 amSTL - SJU
1 stop7h 35mSpirit Airlines
Wed 9/43:53 pmSJU - STL
1 stop7h 21mSpirit Airlines
Deal found 5/30$153
Sun 9/86:24 pmSTL - SJU
1 stop16h 04mSpirit Airlines
Wed 9/117:57 pmSJU - STL
1 stop22h 33mSpirit Airlines
Deal found 5/30$156
Sun 9/86:24 pmSTL - SJU
1 stop16h 04mSpirit Airlines
Wed 9/113:53 pmSJU - STL
1 stop7h 21mSpirit Airlines
Deal found 5/30$159
Tue 8/2710:34 amSTL - SJU
1 stop7h 37mSpirit Airlines
Tue 9/31:00 amSJU - STL
1 stop22h 14mSpirit Airlines
Deal found 5/30$164
Sun 9/86:24 pmSTL - SJU
1 stop16h 04mSpirit Airlines
Wed 9/113:53 pmSJU - STL
2 stops26h 37mSpirit Airlines
Deal found 5/30$165
Wed 9/44:31 pmSTL - SJU
1 stop9h 18mSpirit Airlines
Wed 9/117:57 pmSJU - STL
1 stop22h 33mSpirit Airlines
Deal found 5/30$168
Sun 9/86:24 pmSTL - SJU
1 stop16h 04mSpirit Airlines
Tue 9/106:05 pmSJU - STL
2 stops29h 09mSpirit Airlines
Deal found 5/30$169
Tue 9/242:35 pmSTL - SJU
1 stop8h 27mSpirit Airlines
Mon 9/303:38 amSJU - STL
1 stop10h 59mSpirit Airlines
Deal found 5/30$176

Cheap St. Louis to San Juan flights in May & June 2024

Find cheap flight options from St. Louis to San Juan specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,765,679 searches. Prices were last updated on May 31, 2024.
These are some of the most attractive deals on flights from St. Louis to San Juan in 2024. Check back soon for alternative fares.
Tue 6/47:44 pmSTL - SJU
1 stop11h 38mFrontier
Wed 6/58:05 pmSJU - STL
1 stop12h 02mFrontier
Deal found 5/30$223
Sun 6/235:22 pmSTL - SJU
1 stop17h 08mSpirit Airlines
Sat 6/298:06 pmSJU - STL
1 stop21h 26mSpirit Airlines
Deal found 5/30$238
Tue 6/47:44 pmSTL - SJU
1 stop19h 56mFrontier
Wed 6/510:15 pmSJU - STL
1 stop9h 52mFrontier
Deal found 5/30$247
Tue 6/253:23 pmSTL - SJU
1 stop19h 18mSpirit Airlines
Mon 7/153:09 amSJU - STL
1 stop8h 15mSpirit Airlines
Deal found 5/30$283
Tue 6/253:23 pmSTL - SJU
2 stops20h 03mSpirit Airlines
Mon 7/153:09 amSJU - STL
1 stop8h 15mSpirit Airlines
Deal found 5/30$312
Tue 6/410:44 pmSTL - SJU
2 stops15h 07mFrontier
Wed 6/58:05 pmSJU - STL
1 stop12h 02mFrontier
Deal found 5/30$313
Sat 6/19:29 pmSTL - SJU
1 stop9h 49mFrontier
Mon 6/310:23 pmSJU - STL
1 stop9h 45mFrontier
Deal found 5/30$318
Sun 6/236:55 pmSTL - SJU
2 stops21h 16mSpirit Airlines
Sat 6/294:35 amSJU - STL
1 stop6h 59mSpirit Airlines
Deal found 5/30$325
Mon 6/39:20 pmSTL - SJU
1 stop12h 27mMultiple Airlines
Mon 6/103:33 amSJU - STL
1 stop8h 24mMultiple Airlines
Deal found 5/30$328

St. Louis to San Juan 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and San Juan in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,765,679 searches. Data last updated May 31, 2024.
These are some of the most attractive deals on flights from St. Louis to San Juan in 2024. Check back soon for alternative fares.
Tue 8/2710:34 amSTL - SJU
1 stop7h 37mSpirit Airlines
Wed 9/47:57 pmSJU - STL
1 stop22h 33mSpirit Airlines
Deal found 5/30$141
Tue 8/2710:34 amSTL - SJU
1 stop7h 35mSpirit Airlines
Wed 9/43:53 pmSJU - STL
1 stop7h 21mSpirit Airlines
Deal found 5/30$153
Sun 9/86:24 pmSTL - SJU
1 stop16h 04mSpirit Airlines
Wed 9/117:57 pmSJU - STL
1 stop22h 33mSpirit Airlines
Deal found 5/30$156
Sun 9/86:24 pmSTL - SJU
1 stop16h 04mSpirit Airlines
Wed 9/113:53 pmSJU - STL
1 stop7h 21mSpirit Airlines
Deal found 5/30$159
Tue 8/2710:34 amSTL - SJU
1 stop7h 37mSpirit Airlines
Tue 9/31:00 amSJU - STL
1 stop22h 14mSpirit Airlines
Deal found 5/30$164
Sun 9/86:24 pmSTL - SJU
1 stop16h 04mSpirit Airlines
Wed 9/113:53 pmSJU - STL
2 stops26h 37mSpirit Airlines
Deal found 5/30$165
Wed 9/44:31 pmSTL - SJU
1 stop9h 18mSpirit Airlines
Wed 9/117:57 pmSJU - STL
1 stop22h 33mSpirit Airlines
Deal found 5/30$168
Sun 9/86:24 pmSTL - SJU
1 stop16h 04mSpirit Airlines
Tue 9/106:05 pmSJU - STL
2 stops29h 09mSpirit Airlines
Deal found 5/30$169
Tue 9/242:35 pmSTL - SJU
1 stop8h 27mSpirit Airlines
Mon 9/303:38 amSJU - STL
1 stop10h 59mSpirit Airlines
Deal found 5/30$176

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 2,765,679 searches. Data last updated May 31, 2024.
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.
Tue 8/2010:34 amSTL - SJU
1 stop7h 37mSpirit Airlines
Deal found 5/30$72
Tue 8/2010:34 amSTL - SJU
1 stop7h 37mSpirit Airlines
Deal found 5/30$79
Mon 8/194:31 pmSTL - SJU
2 stops17h 57mSpirit Airlines
Deal found 5/30$95
Tue 8/202:35 pmSTL - SJU
2 stops19h 53mSpirit Airlines
Deal found 5/30$96
Wed 8/214:31 pmSTL - SJU
1 stop8h 20mSpirit Airlines
Deal found 5/30$104
Mon 8/194:31 pmSTL - SJU
1 stop7h 07mSpirit Airlines
Deal found 5/30$112
Tue 8/202:35 pmSTL - SJU
3 stops27h 22mSpirit Airlines
Deal found 5/30$116
Tue 8/202:35 pmSTL - SJU
3 stops27h 22mSpirit Airlines
Deal found 5/30$117
Wed 8/214:31 pmSTL - SJU
2 stops26h 17mSpirit Airlines
Deal found 5/30$133

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 2,765,679 searches. Data last updated May 31, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$141 - $311

Route

Depart

Return

Price

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Tue 8/27

1 stop7h 37m

San Juan Luis Munoz Marin Intl

Wed 9/4

1 stop22h 33m

$141

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Tue 8/27

1 stop7h 35m

San Juan Luis Munoz Marin Intl

Wed 9/4

1 stop7h 21m

$153

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Sun 9/8

1 stop16h 04m

San Juan Luis Munoz Marin Intl

Wed 9/11

1 stop22h 33m

$156

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Sun 9/8

1 stop16h 04m

San Juan Luis Munoz Marin Intl

Wed 9/11

1 stop7h 21m

$159

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Tue 8/27

1 stop7h 37m

San Juan Luis Munoz Marin Intl

Tue 9/3

1 stop22h 14m

$164

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Sun 9/8

1 stop16h 04m

San Juan Luis Munoz Marin Intl

Wed 9/11

2 stops26h 37m

$165

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Thu 9/26

1 stop16h 04m

San Juan Luis Munoz Marin Intl

Sat 9/28

1 stop11h 53m

$258

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Sat 8/3

1 stop11h 53m

San Juan Luis Munoz Marin Intl

Thu 8/8

2 stops18h 14m

$280

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Sat 8/24

1 stop8h 40m

San Juan Luis Munoz Marin Intl

Fri 9/13

2 stops13h 52m

$311

Flights are sorted by cheapest first

Deals found on 5/30

How far ahead should I book a flight from St. Louis to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to San Juan. Price data was last updated on May 24, 2024.
The price you pay for your flight from St. Louis to San Juan may vary depending on when you book. For the best chance of a lower fare, look to book 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

What is the cheapest day to fly from St. Louis to San Juan?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to San Juan. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to San Juan flight should consider departing on Friday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from St. Louis to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average temperature and rainfall totals by month.

SJU

Temperature

77 - 82.4 °F

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 May 31, 2024.
See what other customers who have flown with American Airlines, Spirit Airlines and Frontier 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.
Delta
8.0
Very good
10,438 reviews
Check prices

Food

7.4

Boarding

8.2

Crew

8.6

Comfort

7.9

Overall

8.0

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,438 reviews
Delta
8.0
Very good
10,438 reviews
Check prices

Food

7.4

Boarding

8.2

Crew

8.6

Comfort

7.9

Overall

8.0

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
10,778 reviews
Delta
8.0
Very good
10,438 reviews
Check prices

Food

7.4

Boarding

8.2

Crew

8.6

Comfort

7.9

Overall

8.0

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

American Airlines
7.3
Good
14,282 reviews
Delta
8.0
Very good
10,438 reviews
Check prices

Food

7.4

Boarding

8.2

Crew

8.6

Comfort

7.9

Overall

8.0

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Spirit Airlines
6.4
Okay
8,610 reviews
Delta
8.0
Very good
10,438 reviews
Check prices

Food

7.4

Boarding

8.2

Crew

8.6

Comfort

7.9

Overall

8.0

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Frontier
6.3
Okay
4,006 reviews
Delta
8.0
Very good
10,438 reviews
Check prices

Food

7.4

Boarding

8.2

Crew

8.6

Comfort

7.9

Overall

8.0

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

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 $141, but on average you can expect to pay $175.

  • What days are nonstop flights available from St. Louis to San Juan?

    Nonstop flights are available for this route on the following days: Friday.

  • How many flights depart from St. Louis to San Juan on average per day?

    1 flight departure from St. Louis to San Juan per day on average.
    Morning (6am - Noon) - 100% of flight departures

  • How long is the flight from St. Louis to San Juan?

    For as low as $141, Spirit Airlines can have you in San Juan from St. Louis in 7h 37m. The distance between St. Louis and San Juan is about 2036 mi.

  • 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 $141 on this airline. Spirit Airlines is 69% 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 $72. Delta flights start at $157 while deals on Frontier start at $159 one-way.

  • 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! Ponce Mercedita Airport (PSE), San Juan Isla Grande Airport (SIG), Culebra Airport (CPX), Vieques Airport (VQS), Ceiba J. Aponte de la Torre Airport (NRR) are some additional IATA codes for airports related to your trip.

  • Where are the most common layover locations when flying from St. Louis to San Juan?

    St. Louis to San Juan flights have a layover in Charlotte most often. Atlanta sees the next most layovers on St. Louis to San Juan flights.

  • What are some popular things to do or see while on a layover in Charlotte?

    The majority of Charlotte visitors spend their time at Carowind, North Carolina Blumenthal Performing Arts Center, and NASCAR Hall of Fame. Carowind, North Carolina Blumenthal Performing Arts Center, and NASCAR Hall of Fame are located about 8.2 mi, 5.8 mi, and 5.7 mi, respectively from Charlotte Douglas. Travelers in need of a car in Charlotte can rent one for about $54 per day.

  • What are some popular points of interest to see during a layover in Atlanta?

    Atlanta travelers tend to visit Georgia Aquarium, Fox Theatre, and Piedmont Park more than any other notable places. Georgia Aquarium, Fox Theatre, and Piedmont Park are located about 8.6 mi, 9.3 mi, and 10.4 mi, respectively from Atlanta Hartsfield-Jackson. Travelers can book a car rental at Atlanta Hartsfield-Jackson for about $52 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for St. Louis to San Juan flights?

    Flights departing from St. Louis and landing in San Juan layover in Orlando least frequently.

  • Can I find deals for flights from St. Louis to San Juan that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to San Juan flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to San Juan with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to San Juan flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to San Juan that include hotel bookings?

    Yes. In addition to deals on St. Louis to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to San Juan.

  • Can I find deals for business class flights from St. Louis to San Juan?

    Yes. Cheapflights offers flight deals from St. Louis to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to San Juan that allow pets onboard?

    Many airlines flying from St. Louis to San Juan offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to San Juan?

    Yes, you can often find last-minute deals on St. Louis to San Juan flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to San Juan flight deals updated?

    The St. Louis to San Juan flight deals you see on this page were last updated on 5/30.

  • 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 is the cheapest month to book a flight from St. Louis to San Juan?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to San Juan (average of $247). Flying from St. Louis to San Juan in March is currently the most expensive (average of $338). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to San Juan
See prices for flight routes from nearby airports that may be better suited for you.

Kansas City to Luis Munoz Marin Intl flights
St. Louis to Luis Munoz Marin Intl flights
Springfield to Luis Munoz Marin Intl flights
Kansas City to Aguadilla flights
St. Louis to Culebra flights

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 2,765,679 searches. Data last updated May 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$142Average$299FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$154Average$312FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$271Average$449FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$276Average$509FlexibilityNo cancel feeOn-time71%
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Find flights from St. Louis to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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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 May 31, 2024.
0%of flight departuresEarly morningMidnight to 6 am
100%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
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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 May 31, 2024.
Sunday0daily flights
Monday0daily flights
Tuesday0daily flights
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Saturday2daily flights

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How does Cheapflights help users find flights from St. Louis to San Juan?

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Can Cheapflights find flights from St. Louis to San Juan with no change fees?

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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.

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