Cheap flights from St. Louis (STL) to San Juan from $80

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 5/21. 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
May 3 — May 101

The best prices from Lambert-St Louis to San Juan are usually found in April or September, booked 43 days in advance, depart on a Wednesday or Tuesday and return on a Friday

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 April 28, 2024.

Popular in

June

Cheapest in

April

Round-trip from

$252

One-way from

$165
High demand for flights, 19% potential price rise
Best time to find cheap flights, 31% potential price drop
From Lambert-St Louis to San Juan
One-way flight from Lambert-St Louis to San Juan

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 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 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 42% 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 2,944,896 searches. Data last updated April 28, 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 5/189:51 amSTL - SJU
2 stops9h 24mAmerican Airlines
Sat 5/255:55 pmSJU - STL
1 stop16h 58mAmerican Airlines
Deal found 4/28$418
Sat 5/189:51 amSTL - SJU
2 stops9h 24mAmerican Airlines
Fri 5/2412:45 amSJU - STL
1 stop10h 43mAmerican Airlines
Deal found 4/28$419
Wed 5/294:20 pmSTL - SJU
2 stops19h 20mAmerican Airlines
Wed 6/56:15 amSJU - STL
2 stops18h 48mAmerican Airlines
Deal found 4/28$421
Wed 6/195:15 amSTL - SJU
1 stop16h 15mAmerican Airlines
Wed 6/265:18 pmSJU - STL
1 stop7h 08mAmerican Airlines
Deal found 4/28$433
Sat 10/127:30 amSTL - SJU
2 stops13h 12mAmerican Airlines
Sat 10/194:03 pmSJU - STL
2 stops17h 09mAmerican Airlines
Deal found 4/28$462
Sat 5/255:55 amSTL - SJU
2 stops10h 10mAmerican Airlines
Wed 5/295:55 pmSJU - STL
1 stop16h 58mAmerican Airlines
Deal found 4/28$473
Fri 5/317:45 amSTL - SJU
2 stops8h 20mAmerican Airlines
Sat 6/86:00 amSJU - STL
1 stop11h 05mAmerican Airlines
Deal found 4/28$474
Mon 5/135:55 amSTL - SJU
2 stops10h 10mAmerican Airlines
Fri 5/1712:45 amSJU - STL
1 stop10h 43mAmerican Airlines
Deal found 4/28$484
Wed 6/197:00 amSTL - SJU
2 stops11h 35mAmerican Airlines
Wed 6/265:18 pmSJU - STL
1 stop7h 08mAmerican Airlines
Deal found 4/28$494

Cheap Frontier flights from St. Louis to San Juan

Explore cheap flight options specifically provided by Frontier 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 2,944,896 searches. Data last updated April 28, 2024.
Take a gander at the lowest prices we've found on Frontier flights from St. Louis to San Juan. Deals are refreshing constantly so come back soon for more options.
Wed 5/155:56 pmSTL - SJU
1 stop6h 58mFrontier
Mon 5/2010:23 pmSJU - STL
1 stop9h 45mFrontier
Deal found 4/27$237
Mon 5/139:11 pmSTL - SJU
1 stop15h 30mFrontier
Sat 5/186:18 pmSJU - STL
1 stop13h 50mFrontier
Deal found 4/28$248
Thu 5/167:44 pmSTL - SJU
1 stop17h 11mFrontier
Sun 5/193:35 amSJU - STL
1 stop28h 33mFrontier
Deal found 4/28$256
Mon 6/176:16 pmSTL - SJU
1 stop6h 44mFrontier
Wed 6/2610:15 pmSJU - STL
1 stop9h 53mFrontier
Deal found 4/28$290
Mon 6/176:16 pmSTL - SJU
1 stop6h 44mFrontier
Sun 6/233:11 amSJU - STL
1 stop15h 05mFrontier
Deal found 4/28$293
Fri 6/147:44 pmSTL - SJU
1 stop29h 16mFrontier
Sun 6/163:11 amSJU - STL
1 stop15h 05mFrontier
Deal found 4/28$295
Fri 6/211:48 pmSTL - SJU
1 stop14h 33mFrontier
Sun 6/233:11 amSJU - STL
1 stop15h 05mFrontier
Deal found 4/28$298
Sun 6/167:44 pmSTL - SJU
1 stop29h 16mFrontier
Sun 6/233:11 amSJU - STL
1 stop15h 05mFrontier
Deal found 4/28$299
Fri 6/211:48 pmSTL - SJU
1 stop14h 33mFrontier
Sun 6/233:11 amSJU - STL
1 stop15h 05mFrontier
Deal found 4/28$304

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

Find cheap flight options from St. Louis to San Juan specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,944,896 searches. Prices were last updated on April 28, 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.
Sat 5/185:25 pmSTL - SJU
1 stop13h 58mMultiple Airlines
Sat 5/256:40 pmSJU - STL
1 stop23h 49mMultiple Airlines
Deal found 4/26$173
Sat 5/185:25 pmSTL - SJU
1 stop16h 22mMultiple Airlines
Sat 5/256:40 pmSJU - STL
2 stops25h 00mMultiple Airlines
Deal found 4/26$190
Sat 5/411:39 amSTL - SJU
1 stop13h 05mSpirit Airlines
Sat 5/114:00 amSJU - STL
1 stop7h 28mSpirit Airlines
Deal found 4/27$196
Sat 5/411:39 amSTL - SJU
1 stop13h 05mMultiple Airlines
Fri 5/103:09 amSJU - STL
1 stop13h 28mMultiple Airlines
Deal found 4/27$220
Sat 5/1811:39 amSTL - SJU
1 stop12h 17mSpirit Airlines
Sat 5/257:57 pmSJU - STL
1 stop22h 32mSpirit Airlines
Deal found 4/28$222
Sat 5/411:39 amSTL - SJU
1 stop13h 31mMultiple Airlines
Tue 5/73:08 amSJU - STL
1 stop18h 45mMultiple Airlines
Deal found 4/26$224
Thu 5/167:30 pmSTL - SJU
1 stop14h 10mSpirit Airlines
Fri 5/179:00 pmSJU - STL
1 stop20h 25mSpirit Airlines
Deal found 4/27$230
Sat 5/411:39 amSTL - SJU
1 stop13h 05mSpirit Airlines
Wed 5/87:57 pmSJU - STL
2 stops23h 43mSpirit Airlines
Deal found 4/26$234
Wed 5/155:56 pmSTL - SJU
1 stop6h 58mFrontier
Mon 5/2010:23 pmSJU - STL
1 stop9h 45mFrontier
Deal found 4/27$237

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 2,944,896 searches. Data last updated April 28, 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.
Sat 5/185:25 pmSTL - SJU
1 stop13h 58mMultiple Airlines
Sat 5/256:40 pmSJU - STL
1 stop23h 49mMultiple Airlines
Deal found 4/26$173
Sat 5/185:25 pmSTL - SJU
1 stop16h 22mMultiple Airlines
Sat 5/256:40 pmSJU - STL
2 stops25h 00mMultiple Airlines
Deal found 4/26$190
Sat 5/411:39 amSTL - SJU
1 stop13h 05mSpirit Airlines
Sat 5/114:00 amSJU - STL
1 stop7h 28mSpirit Airlines
Deal found 4/27$196
Sat 5/411:39 amSTL - SJU
1 stop13h 05mMultiple Airlines
Fri 5/103:09 amSJU - STL
1 stop13h 28mMultiple Airlines
Deal found 4/27$220
Sat 5/1811:39 amSTL - SJU
1 stop12h 17mSpirit Airlines
Sat 5/257:57 pmSJU - STL
1 stop22h 32mSpirit Airlines
Deal found 4/28$222
Sat 5/411:39 amSTL - SJU
1 stop13h 31mMultiple Airlines
Tue 5/73:08 amSJU - STL
1 stop18h 45mMultiple Airlines
Deal found 4/26$224
Sat 6/15:15 pmSTL - SJU
1 stop17h 17mSpirit Airlines
Wed 6/58:06 pmSJU - STL
1 stop22h 22mSpirit Airlines
Deal found 4/28$225
Thu 5/167:30 pmSTL - SJU
1 stop14h 10mSpirit Airlines
Fri 5/179:00 pmSJU - STL
1 stop20h 25mSpirit Airlines
Deal found 4/27$230
Sat 5/411:39 amSTL - SJU
1 stop13h 05mSpirit Airlines
Wed 5/87:57 pmSJU - STL
2 stops23h 43mSpirit Airlines
Deal found 4/26$234

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 2,944,896 searches. Data last updated April 28, 2024.
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.
Sat 5/411:39 amSTL - SJU
1 stop13h 05mSpirit Airlines
Sat 5/114:00 amSJU - STL
1 stop7h 28mSpirit Airlines
Deal found 4/27$196
Sat 5/411:39 amSTL - SJU
1 stop13h 05mMultiple Airlines
Fri 5/103:09 amSJU - STL
1 stop13h 28mMultiple Airlines
Deal found 4/27$220
Sat 5/411:39 amSTL - SJU
1 stop13h 31mMultiple Airlines
Tue 5/73:08 amSJU - STL
1 stop18h 45mMultiple Airlines
Deal found 4/26$224
Sat 5/411:39 amSTL - SJU
1 stop13h 05mSpirit Airlines
Wed 5/87:57 pmSJU - STL
2 stops23h 43mSpirit Airlines
Deal found 4/26$234
Sat 5/411:39 amSTL - SJU
1 stop13h 05mSpirit Airlines
Wed 5/87:57 pmSJU - STL
1 stop22h 32mSpirit Airlines
Deal found 4/26$240
Sat 5/411:39 amSTL - SJU
1 stop13h 31mMultiple Airlines
Sat 5/1112:32 pmSJU - STL
3 stops23h 58mMultiple Airlines
Deal found 4/27$254
Sat 5/411:39 amSTL - SJU
1 stop13h 05mSpirit Airlines
Sat 5/112:35 pmSJU - STL
2 stops27h 54mSpirit Airlines
Deal found 4/27$272
Tue 5/72:35 pmSTL - SJU
1 stop8h 32mSpirit Airlines
Sat 5/114:00 amSJU - STL
1 stop7h 28mSpirit Airlines
Deal found 4/27$278
Sat 5/411:39 amSTL - SJU
2 stops23h 06mSpirit Airlines
Wed 5/87:57 pmSJU - STL
2 stops23h 43mSpirit Airlines
Deal found 4/26$325

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 2,944,896 searches. Data last updated April 28, 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 5/2110:34 amSTL - SJU
1 stop7h 37mSpirit Airlines
Deal found 4/27$80
Sat 5/185:15 pmSTL - SJU
2 stops22h 30mSpirit Airlines
Deal found 4/28$86
Sat 5/1811:39 amSTL - SJU
1 stop12h 17mSpirit Airlines
Deal found 4/28$100
Sat 5/1811:39 amSTL - SJU
3 stops28h 06mSpirit Airlines
Deal found 4/28$101
Mon 8/199:20 pmSTL - SJU
1 stop12h 45mFrontier
Deal found 4/28$114
Tue 8/2010:34 amSTL - SJU
1 stop7h 37mSpirit Airlines
Deal found 4/28$122
Tue 5/212:35 pmSTL - SJU
2 stops19h 57mSpirit Airlines
Deal found 4/27$145
Thu 5/237:44 pmSTL - SJU
1 stop17h 11mFrontier
Deal found 4/28$154
Tue 8/205:30 amSTL - SJU
2 stops10h 10mAmerican Airlines
Deal found 4/28$158

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 2,944,896 searches. Data last updated April 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$222 - $512

Route

Depart

Return

Price

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Sat 5/18

1 stop12h 17m

San Juan Luis Munoz Marin Intl

Sat 5/25

1 stop22h 32m

$222

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Sat 6/1

1 stop17h 17m

San Juan Luis Munoz Marin Intl

Wed 6/5

1 stop22h 22m

$225

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Wed 5/15

1 stop6h 58m

San Juan Luis Munoz Marin Intl

Mon 5/20

1 stop9h 45m

$237

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Tue 5/21

1 stop7h 37m

San Juan Luis Munoz Marin Intl

Tue 5/28

2 stops27h 11m

$238

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Wed 5/29

1 stop8h 04m

San Juan Luis Munoz Marin Intl

Wed 6/5

1 stop21h 22m

$242

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Mon 5/13

1 stop15h 30m

San Juan Luis Munoz Marin Intl

Sat 5/18

1 stop13h 50m

$248

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Sun 7/7

1 stop6h 41m

San Juan Luis Munoz Marin Intl

Thu 7/18

1 stop11h 20m

$374

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Sat 5/18

2 stops9h 24m

San Juan Luis Munoz Marin Intl

Sat 5/25

1 stop16h 58m

$418

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Thu 9/26

1 stop27h 00m

San Juan Luis Munoz Marin Intl

Mon 9/30

2 stops10h 02m

$512

Flights are sorted by cheapest first

Deals found on 4/28

When is the best time to 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 January 28, 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 43 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

When is the cheapest time 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 April 28, 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

Average price of flights to San Juan by month

Plan your trip from St. Louis to San Juan by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to San Juan is currently $118 while a round-trip flight costs $302. Price data was last updated on April 28, 2024.

Currently, September is the cheapest month in which you can book a flight from St. Louis to San Juan (average of $252). Flying from St. Louis to San Juan in March is currently the most expensive (average of $339). 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.

January

$278

February

$286

March

$339

April

$303

May

$282

June

$317

July

$333

August

$278

September

$252

October

$265

November

$300

December

$302

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 April 28, 2024.
See what other customers who have flown with American Airlines, Frontier and Spirit 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.
8.1
Very good
10,932 reviews

Crew

8.6

Entertainment

8.0

Overall

8.1

Food

7.4

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

8.1
Very good
10,932 reviews
8.1
Very good
10,932 reviews

Crew

8.6

Entertainment

8.0

Overall

8.1

Food

7.4

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

7.4
Good
11,221 reviews
8.1
Very good
10,932 reviews

Crew

8.6

Entertainment

8.0

Overall

8.1

Food

7.4

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

7.3
Good
14,844 reviews
8.1
Very good
10,932 reviews

Crew

8.6

Entertainment

8.0

Overall

8.1

Food

7.4

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

6.4
Okay
8,739 reviews
8.1
Very good
10,932 reviews

Crew

8.6

Entertainment

8.0

Overall

8.1

Food

7.4

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

6.3
Okay
4,123 reviews
8.1
Very good
10,932 reviews

Crew

8.6

Entertainment

8.0

Overall

8.1

Food

7.4

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

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 $300 on Cheapflights?

    Yes, there are multiple flights from St. Louis to San Juan for under $300. The cheapest flight booked recently is on Spirit Airlines for just $222, but on average you can expect to pay $256.

  • Are there last-minute flights available from St. Louis to San Juan for under $200?

    There are currently 18+ open flights from St. Louis to San Juan within the next 7 days for less than $200.

  • What are the cheapest airlines flying 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 $222 on this airline. An additional option worth looking into is Frontier, starting at $237. Spirit Airlines is 53% 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 $80. Frontier flights start at $114 while deals on American Airlines start at $158 one-way.

  • What are the most popular airlines that fly 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! 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?

  • 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 $53 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 Centennial Olympic Park more than any other notable places. Georgia Aquarium, Fox Theatre, and Centennial Olympic Park are located about 8.6 mi, 9.3 mi, and 8.4 mi, respectively from Atlanta Hartsfield-Jackson. Travelers can book a car rental at Atlanta Hartsfield-Jackson for about $57 per day to make their sightseeing more efficient.

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

  • 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 4/28.

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.

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 2,944,896 searches. Data last updated April 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$142Average$290FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$155Average$333FlexibilityNo cancel feeOn-time65%
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DeltaCheapest$271Average$456FlexibilityNo cancel feeOn-timeN/A
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American AirlinesCheapest$280Average$509FlexibilityNo cancel feeOn-time71%
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United AirlinesCheapest$281Average$643FlexibilityNo cancel feeOn-time69%
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Linear Air TaxiCheapest$11,685Average$87,598FlexibilityNo cancel feeOn-timeN/A
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Search flights from St. Louis to San Juan by cabin class

Find flights from St. Louis to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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 April 28, 2024.
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Can Cheapflights notify me if prices for flights from St. Louis to San Juan become cheaper?

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