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Cheap flights from St. Louis (STL) to Puerto Rico from $91

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 8/21. 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
Jun 9 — Jun 161
From?
To?
Sun 6/9
Sun 6/16
1 adult, Economy
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How far in advance should I book a flight from St. Louis to Puerto Rico?

To save on the cost of your flight from St. Louis to Puerto Rico, book at least 16 days before your planned departure. Booking around this time can save you about 15% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $311 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $315.

What is the cheapest month to fly from St. Louis to Puerto Rico?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to Puerto Rico. Flights to Puerto Rico from St. Louis in September are about $457 on average during September, but can be found for as low as $168.

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

When flying from St. Louis to Puerto Rico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Spirit Airlines flights from St. Louis to Puerto Rico

Explore cheap flight options specifically provided by Spirit Airlines for the route between St. Louis and Puerto Rico. 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 3,009,960 searches. Data last updated June 4, 2024.
Peruse some of the lowest-priced Spirit Airlines flights we've found from St. Louis to Puerto Rico. Make sure to check back often as deals are often changing.
Wed 8/147:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Wed 8/217:54 pmSJU - STL
1 stop21h 26mSpirit Airlines
Deal found 6/4$179
Tue 8/1310:11 amSTL - SJU
1 stop8h 04mSpirit Airlines
Tue 8/201:52 amSJU - STL
1 stop6h 15mSpirit Airlines
Deal found 6/4$187
Wed 8/148:10 amSTL - SJU
1 stop16h 58mSpirit Airlines
Tue 8/201:52 amSJU - STL
1 stop6h 15mSpirit Airlines
Deal found 6/4$188
Wed 8/217:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Tue 8/271:52 amSJU - STL
1 stop6h 15mSpirit Airlines
Deal found 6/3$189
Wed 8/147:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Mon 8/191:52 amSJU - STL
1 stop6h 15mSpirit Airlines
Deal found 6/4$192
Thu 8/227:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Tue 8/271:52 amSJU - STL
1 stop6h 15mSpirit Airlines
Deal found 6/3$208
Mon 9/94:31 pmSTL - SJU
2 stops17h 57mSpirit Airlines
Wed 10/93:53 pmSJU - STL
1 stop7h 21mSpirit Airlines
Deal found 6/4$209
Sun 8/257:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Tue 8/271:52 amSJU - STL
1 stop6h 15mSpirit Airlines
Deal found 6/3$212
Fri 9/64:31 pmSTL - SJU
1 stop24h 13mSpirit Airlines
Mon 9/97:57 pmSJU - STL
1 stop14h 42mSpirit Airlines
Deal found 6/4$214

Cheap Frontier flights from St. Louis to Puerto Rico

Explore cheap flight options specifically provided by Frontier for the route between St. Louis and Puerto Rico. 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 3,009,960 searches. Data last updated June 4, 2024.
Some of the best deals we've found on Frontier flights traveling from St. Louis to Puerto Rico. Make sure to examine the flight information before completing your reservation.
Wed 8/213:32 pmSTL - SJU
1 stop7h 48mFrontier
Thu 8/298:09 pmSJU - STL
1 stop11h 53mFrontier
Deal found 6/3$270
Sat 8/33:09 pmSTL - SJU
1 stop11h 42mFrontier
Thu 8/84:11 pmSJU - STL
2 stops18h 14mFrontier
Deal found 6/4$280
Sat 6/228:02 pmSTL - SJU
2 stops17h 49mFrontier
Fri 6/283:08 amSJU - STL
1 stop28h 59mFrontier
Deal found 6/4$284
Mon 6/106:16 pmSTL - SJU
1 stop13h 06mFrontier
Sat 6/1510:15 pmSJU - STL
1 stop9h 52mFrontier
Deal found 6/3$288
Sat 8/108:02 pmSTL - SJU
2 stops17h 51mFrontier
Sat 8/247:00 amSJU - STL
1 stop25h 02mFrontier
Deal found 6/3$289
Mon 7/292:21 pmSTL - SJU
1 stop14h 29mFrontier
Thu 8/14:11 pmSJU - STL
2 stops18h 14mFrontier
Deal found 6/2$290
Sat 8/2411:47 amSTL - SJU
1 stop11h 33mFrontier
Thu 8/298:09 pmSJU - STL
1 stop11h 53mFrontier
Deal found 6/3$294
Mon 8/2611:21 amSTL - SJU
1 stop11h 59mFrontier
Sat 8/318:09 pmSJU - STL
1 stop11h 53mFrontier
Deal found 6/3$298
Fri 8/2311:16 amSTL - SJU
1 stop12h 04mFrontier
Thu 8/298:09 pmSJU - STL
1 stop11h 53mFrontier
Deal found 6/3$304

Cheap St. Louis to Puerto Rico flights in June & July 2024

Find cheap flight options from St. Louis to Puerto Rico specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,009,960 searches. Prices were last updated on June 4, 2024.
Scroll through some of the best deals on flights from St. Louis to Puerto Rico in 2024. Check back regularly for other flight deals.
Tue 6/253:23 pmSTL - SJU
1 stop25h 07mSpirit Airlines
Sat 6/298:06 pmSJU - STL
1 stop21h 26mSpirit Airlines
Deal found 6/2$216
Tue 7/23:23 pmSTL - SJU
1 stop25h 07mSpirit Airlines
Mon 7/83:33 amSJU - STL
1 stop8h 24mSpirit Airlines
Deal found 6/2$241
Thu 6/206:22 pmSTL - SJU
1 stop17h 13mSpirit Airlines
Mon 6/248:06 pmSJU - STL
1 stop19h 17mSpirit Airlines
Deal found 6/3$247
Tue 7/23:23 pmSTL - SJU
1 stop25h 07mSpirit Airlines
Wed 7/172:22 amSJU - STL
1 stop18h 37mSpirit Airlines
Deal found 6/2$249
Tue 6/253:23 pmSTL - SJU
1 stop25h 07mSpirit Airlines
Sat 6/298:06 pmSJU - STL
1 stop21h 26mSpirit Airlines
Deal found 6/3$250
Thu 6/276:22 pmSTL - SJU
1 stop16h 08mMultiple Airlines
Thu 7/44:07 pmSJU - STL
2 stops18h 18mMultiple Airlines
Deal found 6/3$254
Tue 7/1610:11 amSTL - SJU
1 stop8h 04mSpirit Airlines
Fri 7/198:54 pmSJU - STL
1 stop21h 35mSpirit Airlines
Deal found 6/3$262
Tue 7/23:23 pmSTL - SJU
1 stop19h 18mSpirit Airlines
Thu 7/184:15 amSJU - STL
1 stop16h 44mSpirit Airlines
Deal found 6/2$271
Thu 6/206:22 pmSTL - SJU
1 stop16h 08mSpirit Airlines
Mon 6/248:06 pmSJU - STL
2 stops15h 51mSpirit Airlines
Deal found 6/3$274

St. Louis to Puerto Rico 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Puerto Rico in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,009,960 searches. Data last updated June 4, 2024.
Scroll through some of the best deals on flights from St. Louis to Puerto Rico in 2024. Check back regularly for other flight deals.
Wed 8/147:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Wed 8/217:54 pmSJU - STL
1 stop21h 26mSpirit Airlines
Deal found 6/4$179
Tue 8/1310:11 amSTL - SJU
1 stop8h 04mSpirit Airlines
Tue 8/201:52 amSJU - STL
1 stop6h 15mSpirit Airlines
Deal found 6/4$187
Wed 8/217:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Tue 8/271:52 amSJU - STL
1 stop6h 15mSpirit Airlines
Deal found 6/3$189
Wed 8/147:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Mon 8/191:52 amSJU - STL
1 stop6h 15mSpirit Airlines
Deal found 6/4$192
Wed 8/147:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Tue 8/201:52 amSJU - STL
1 stop6h 15mSpirit Airlines
Deal found 6/4$195
Thu 8/227:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Tue 8/271:52 amSJU - STL
1 stop6h 15mSpirit Airlines
Deal found 6/3$208
Sun 8/257:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Tue 8/271:52 amSJU - STL
1 stop6h 15mSpirit Airlines
Deal found 6/3$212
Thu 8/157:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Wed 8/217:54 pmSJU - STL
1 stop21h 26mSpirit Airlines
Deal found 6/4$215
Tue 6/253:23 pmSTL - SJU
1 stop25h 07mSpirit Airlines
Sat 6/298:06 pmSJU - STL
1 stop21h 26mSpirit Airlines
Deal found 6/2$216

St. Louis to Puerto Rico flights leaving soon

Find last-minute flight options from St. Louis to Puerto Rico 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 3,009,960 searches. Data last updated June 4, 2024.
Consider one of these great deals we found on last-minute flights from St. Louis to Puerto Rico. Users should be sure to double check the price, date, and time of their last-minute flight.
Mon 6/106:16 pmSTL - SJU
1 stop13h 06mFrontier
Sat 6/1510:15 pmSJU - STL
1 stop9h 52mFrontier
Deal found 6/3$288
Mon 6/106:16 pmSTL - SJU
1 stop15h 27mFrontier
Fri 6/143:08 amSJU - STL
1 stop28h 59mFrontier
Deal found 6/3$307
Sun 6/97:44 pmSTL - SJU
1 stop14h 04mFrontier
Sat 6/1510:15 pmSJU - STL
1 stop9h 52mFrontier
Deal found 6/3$321
Mon 6/106:16 pmSTL - SJU
1 stop6h 47mFrontier
Sat 6/154:27 pmSJU - STL
2 stops23h 10mFrontier
Deal found 6/3$326
Sun 6/97:44 pmSTL - SJU
1 stop14h 04mFrontier
Fri 6/143:08 amSJU - STL
1 stop28h 59mFrontier
Deal found 6/3$327
Sun 6/96:55 pmSTL - SJU
1 stop6h 43mSpirit Airlines
Sat 6/156:38 pmSJU - STL
2 stops24h 27mSpirit Airlines
Deal found 6/3$410
Sun 6/96:55 pmSTL - SJU
1 stop6h 43mSpirit Airlines
Fri 6/142:30 amSJU - STL
2 stops15h 58mSpirit Airlines
Deal found 6/3$432
Sun 6/96:55 pmSTL - SJU
2 stops15h 35mSpirit Airlines
Sat 6/156:38 pmSJU - STL
2 stops24h 27mSpirit Airlines
Deal found 6/3$438
Mon 6/102:41 pmSTL - SJU
2 stops28h 56mSpirit Airlines
Sat 6/158:06 pmSJU - STL
2 stops22h 59mSpirit Airlines
Deal found 6/3$458

One-way flights to Puerto Rico from St. Louis

Search for one-way flight options from St. Louis to Puerto Rico. 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 3,009,960 searches. Data last updated June 4, 2024.
If you're seeking multiple options on one-way flights from St. Louis to Puerto Rico, be sure to check out these deals, which are updated often. Users in need of a round-trip flight from St. Louis to Puerto Rico instead should update the search form at the top of page.
Wed 8/217:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Deal found 6/3$91
Tue 8/207:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Deal found 6/3$94
Mon 8/197:57 amSTL - SJU
1 stop15h 55mSpirit Airlines
Deal found 6/3$111
Tue 6/1811:57 amSTL - SJU
2 stops22h 44mSpirit Airlines
Deal found 6/4$117
Tue 6/1811:57 amSTL - SJU
1 stop12h 12mSpirit Airlines
Deal found 6/4$118
Tue 6/1811:57 amSTL - SJU
3 stops30h 08mSpirit Airlines
Deal found 6/4$128
Tue 8/207:57 amSTL - SJU
2 stops27h 46mSpirit Airlines
Deal found 6/3$133
Tue 8/207:57 amSTL - SJU
3 stops39h 15mSpirit Airlines
Deal found 6/3$137
Tue 6/1811:57 amSTL - SJU
1 stop12h 12mSpirit Airlines
Deal found 6/2$142

Find flights from St. Louis to Puerto Rico within your budget

Customize your flight search to find flights from St. Louis to Puerto Rico 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 3,009,960 searches. Data last updated June 4, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$179 - $404

Route

Depart

Return

Price

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Wed 8/14

1 stop15h 55m

San Juan Luis Munoz Marin Intl

Wed 8/21

1 stop21h 26m

$179

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Tue 8/13

1 stop8h 04m

San Juan Luis Munoz Marin Intl

Tue 8/20

1 stop6h 15m

$187

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Wed 8/14

1 stop16h 58m

San Juan Luis Munoz Marin Intl

Tue 8/20

1 stop6h 15m

$188

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Wed 8/21

1 stop15h 55m

San Juan Luis Munoz Marin Intl

Tue 8/27

1 stop6h 15m

$189

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Tue 8/6

2 stops14h 54m

San Juan Luis Munoz Marin Intl

Mon 8/12

1 stop8h 15m

$252

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Wed 8/21

1 stop7h 48m

San Juan Luis Munoz Marin Intl

Thu 8/29

1 stop11h 53m

$270

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Fri 8/16

1 stop9h 44m

San Juan Luis Munoz Marin Intl

Tue 8/20

1 stop6h 44m

$314

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Sat 8/24

1 stop6h 35m

San Juan Luis Munoz Marin Intl

Sat 8/31

2 stops13h 09m

$344

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

Tue 10/1

1 stop10h 45m

San Juan Luis Munoz Marin Intl

Tue 10/8

2 stops14h 43m

$404

Flights are sorted by cheapest first

Deals found on 6/4

No data available for this route at this time. Please check back soon.

Best time to book a flight from St. Louis to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico 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.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated June 4, 2024.
Read through reviews of airlines operating flights from St. Louis to Puerto Rico, such as Spirit Airlines, Frontier and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,377 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

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
10,377 reviews
Delta
8.0
Very good
10,377 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

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
10,732 reviews
Delta
8.0
Very good
10,377 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

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
14,237 reviews
Delta
8.0
Very good
10,377 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

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
8,582 reviews
Delta
8.0
Very good
10,377 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

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
6.2
Okay
3,990 reviews
Delta
8.0
Very good
10,377 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

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 Puerto Rico. 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 Puerto Rico?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Puerto Rico. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • Can I find flights from St. Louis to Puerto Rico for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Puerto Rico for under $200. The cheapest flight booked recently is on Spirit Airlines for just $179, but on average you can expect to pay $213.

  • Are there last-minute flights available from St. Louis to Puerto Rico for under $300?

    There are currently 17+ open flights from St. Louis to Puerto Rico within the next 7 days for less than $300.

  • What are the cheapest airlines to fly from St. Louis to Puerto Rico one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $91. Users have also found prices from $160 and $164 on American Airlines and Frontier, respectively.

  • What does STL to SJU mean?

    STL stands for Lambert-St Louis Airport, while SJU stands for San Juan Luis Munoz Marin Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Aguadilla Borinquen Airport (BQN), Ponce Mercedita Airport (PSE), San Juan Isla Grande Airport (SIG), Culebra Airport (CPX), Vieques Airport (VQS) are some additional IATA codes for airports related to your trip.

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

    The amount of baggage you can bring on your St. Louis to Puerto Rico 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 Puerto Rico with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Puerto Rico 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 Puerto Rico that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Puerto Rico?

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

  • Can I find deals for business class flights from St. Louis to Puerto Rico?

    Yes. Cheapflights offers flight deals from St. Louis to Puerto Rico 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 Puerto Rico that allow pets onboard?

    Many airlines flying from St. Louis to Puerto Rico 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 Puerto Rico?

    Yes, you can often find last-minute deals on St. Louis to Puerto Rico 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 Puerto Rico flight deals updated?

    The St. Louis to Puerto Rico flight deals you see on this page were last updated on 6/4.

  • What are the most popular airlines that fly from St. Louis to Puerto Rico?

    Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from St. Louis to Puerto Rico.

  • What is the cheapest month to book a flight from St. Louis to Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Puerto Rico (average of $245). Flying from St. Louis to Puerto Rico 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 Puerto Rico
See prices for flight routes from nearby airports that may be better suited for you.

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Top 6 airlines flying from St. Louis to Puerto Rico

Discover the top 6 airlines that operate flights from St. Louis to Puerto Rico. 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 3,009,960 searches. Data last updated June 4, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$142Average$274FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$154Average$356FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$271Average$449FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$276Average$509FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$280Average$648FlexibilityNo cancel feeOn-time69%
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Search flights from St. Louis to Puerto Rico by cabin class

Find flights from St. Louis to Puerto Rico, 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 Puerto Rico

Find hourly flight availability from St. Louis to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 4, 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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Fly with Cheapflights

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How does Cheapflights help users find flights from St. Louis to Puerto Rico?

Cheapflights helps you search for flights from St. Louis to Puerto Rico via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Puerto Rico?

Cheapflights simply makes it quick and affordable to book flights from St. Louis to Puerto Rico 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 Puerto Rico with no change fees?

Yes! Cheapflights helps users easily find flights from St. Louis to Puerto Rico with no change fees.

Can Cheapflights notify me if prices for flights from St. Louis to Puerto Rico become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Puerto Rico from St. Louis today and book when prices fit your budget.

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