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 $101. Users have also found prices from $109 and $187 on Frontier and Delta, respectively.

When is the best time 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 $250). 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.

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 5/14.

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.

Can I find flights from St. Louis to Puerto Rico for under $300 on Cheapflights?

Yes, there are multiple flights from St. Louis to Puerto Rico for under $300. The cheapest flight booked recently is on Multiple Airlines for just $226, but on average you can expect to pay $241.

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

There are currently 20+ open flights from St. Louis to Puerto Rico within the next 7 days for less than $300.

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.

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.

Flights from St. Louis, MO to Puerto Rico from $101

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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 $312.

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, April can be a great choice for travel to Puerto Rico. Flights to Puerto Rico from St. Louis in April are about $458 on average during April, but can be found for as low as $196.

When is the cheapest time to fly from St. Louis to Puerto Rico (STL - 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 Frontier flights from St. Louis to Puerto Rico

Peruse some of the lowest-priced Frontier flights we've found from St. Louis to Puerto Rico. Make sure to check back often as deals are often changing.

lun. 6/172:18 pmSTL - SJU

1 stop14h 25mFrontier

mié. 6/193:08 amSJU - STL

1 stop28h 59mFrontier

Deal found 5/13$228

mié. 5/298:47 amSTL - SJU

1 stop8h 04mFrontier

dom. 6/23:15 amSJU - STL

1 stop18h 05mFrontier

Deal found 5/13$230

lun. 6/106:16 pmSTL - SJU

1 stop6h 47mFrontier

lun. 6/1710:15 pmSJU - STL

1 stop9h 52mFrontier

Deal found 5/13$232

mar. 5/287:44 pmSTL - SJU

1 stop29h 10mFrontier

sáb. 6/110:23 pmSJU - STL

1 stop9h 45mFrontier

Deal found 5/13$236

mar. 6/117:44 pmSTL - SJU

1 stop11h 38mFrontier

mar. 6/184:07 pmSJU - STL

2 stops18h 22mFrontier

Deal found 5/12$237

mar. 6/117:44 pmSTL - SJU

1 stop11h 38mFrontier

mié. 6/193:08 amSJU - STL

1 stop28h 59mFrontier

Deal found 5/13$242

mar. 5/287:44 pmSTL - SJU

1 stop29h 10mFrontier

vie. 5/313:08 amSJU - STL

1 stop29h 00mFrontier

Deal found 5/13$243

jue. 5/307:44 pmSTL - SJU

1 stop20h 19mFrontier

dom. 6/23:15 amSJU - STL

1 stop18h 05mFrontier

Deal found 5/13$245

vie. 5/311:10 pmSTL - SJU

1 stop9h 49mFrontier

sáb. 6/16:18 pmSJU - STL

1 stop13h 50mFrontier

Deal found 5/13$248

Cheap Spirit Airlines flights from St. Louis to Puerto Rico

Some of the best deals we've found on Spirit Airlines flights traveling from St. Louis to Puerto Rico. Make sure to examine the flight information before completing your reservation.

mar. 6/2511:57 amSTL - SJU

1 stop12h 12mSpirit Airlines

lun. 7/153:33 amSJU - STL

1 stop7h 51mSpirit Airlines

Deal found 5/14$235

dom. 6/26:19 pmSTL - SJU

1 stop23h 20mSpirit Airlines

vie. 6/77:06 pmSJU - STL

1 stop23h 22mSpirit Airlines

Deal found 5/13$247

mar. 5/282:35 pmSTL - SJU

3 stops20h 08mSpirit Airlines

lun. 6/39:07 pmSJU - STL

1 stop13h 32mSpirit Airlines

Deal found 5/13$260

mar. 5/282:35 pmSTL - SJU

3 stops20h 08mSpirit Airlines

mié. 5/297:57 pmSJU - STL

2 stops23h 43mSpirit Airlines

Deal found 5/13$274

jue. 6/136:22 pmSTL - SJU

1 stop22h 59mSpirit Airlines

mié. 6/193:33 amSJU - STL

1 stop16h 49mSpirit Airlines

Deal found 5/14$275

sáb. 6/15:15 pmSTL - SJU

3 stops32h 50mSpirit Airlines

lun. 6/33:30 amSJU - STL

1 stop11h 07mSpirit Airlines

Deal found 5/12$276

sáb. 6/226:22 pmSTL - SJU

1 stop16h 08mSpirit Airlines

jue. 6/274:50 amSJU - STL

1 stop15h 32mSpirit Airlines

Deal found 5/13$278

jue. 5/307:30 pmSTL - SJU

2 stops15h 02mSpirit Airlines

sáb. 6/14:00 amSJU - STL

1 stop7h 28mSpirit Airlines

Deal found 5/13$286

jue. 6/138:12 pmSTL - SJU

2 stops21h 09mSpirit Airlines

jue. 6/204:50 amSJU - STL

1 stop15h 32mSpirit Airlines

Deal found 5/14$294

Cheap St. Louis to Puerto Rico flights in May & June 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.

mar. 5/282:35 pmSTL - SJU

1 stop6h 49mMultiple Airlines

sáb. 6/110:23 pmSJU - STL

1 stop9h 45mMultiple Airlines

Deal found 5/13$191

mié. 5/298:47 amSTL - SJU

1 stop8h 04mFrontier

mié. 5/298:09 pmSJU - STL

1 stop11h 59mFrontier

Deal found 5/13$213

mié. 5/298:47 amSTL - SJU

1 stop8h 04mFrontier

vie. 5/318:19 pmSJU - STL

1 stop12h 38mFrontier

Deal found 5/13$218

mié. 5/298:47 amSTL - SJU

1 stop8h 04mFrontier

mar. 6/42:43 pmSJU - STL

1 stop17h 39mFrontier

Deal found 5/13$224

mar. 5/282:35 pmSTL - SJU

1 stop6h 49mSpirit Airlines

lun. 6/39:07 pmSJU - STL

1 stop13h 32mSpirit Airlines

Deal found 5/13$225

sáb. 6/86:22 pmSTL - SJU

1 stop16h 08mMultiple Airlines

sáb. 6/1510:15 pmSJU - STL

1 stop9h 52mMultiple Airlines

Deal found 5/14$226

lun. 6/172:18 pmSTL - SJU

1 stop14h 25mFrontier

mié. 6/193:08 amSJU - STL

1 stop28h 59mFrontier

Deal found 5/13$228

mar. 6/117:44 pmSTL - SJU

1 stop11h 38mFrontier

mar. 6/189:28 amSJU - STL

1 stop22h 57mFrontier

Deal found 5/12$229

mié. 5/298:47 amSTL - SJU

1 stop8h 04mFrontier

dom. 6/23:15 amSJU - STL

1 stop18h 05mFrontier

Deal found 5/13$230

St. Louis to Puerto Rico 2024 flight deals

Scroll through some of the best deals on flights from St. Louis to Puerto Rico in 2024. Check back regularly for other flight deals.

mar. 9/2410:34 amSTL - SJU

1 stop7h 37mSpirit Airlines

lun. 9/303:38 amSJU - STL

1 stop10h 59mSpirit Airlines

Deal found 5/13$155

sáb. 9/711:39 amSTL - SJU

1 stop14h 09mSpirit Airlines

vie. 9/132:40 amSJU - STL

1 stop8h 48mSpirit Airlines

Deal found 5/13$180

mar. 9/242:35 pmSTL - SJU

2 stops19h 53mSpirit Airlines

mar. 10/17:00 amSJU - STL

1 stop7h 37mSpirit Airlines

Deal found 5/13$181

mar. 5/282:35 pmSTL - SJU

1 stop6h 49mMultiple Airlines

sáb. 6/110:23 pmSJU - STL

1 stop9h 45mMultiple Airlines

Deal found 5/13$191

sáb. 9/711:39 amSTL - SJU

1 stop14h 09mMultiple Airlines

sáb. 9/148:09 pmSJU - STL

1 stop11h 53mMultiple Airlines

Deal found 5/13$205

mié. 5/298:47 amSTL - SJU

1 stop8h 04mFrontier

mié. 5/298:09 pmSJU - STL

1 stop11h 59mFrontier

Deal found 5/13$213

mié. 5/298:47 amSTL - SJU

1 stop8h 04mFrontier

vie. 5/318:19 pmSJU - STL

1 stop12h 38mFrontier

Deal found 5/13$218

mié. 5/298:47 amSTL - SJU

1 stop8h 04mFrontier

mar. 6/42:43 pmSJU - STL

1 stop17h 39mFrontier

Deal found 5/13$224

mar. 5/282:35 pmSTL - SJU

1 stop6h 49mSpirit Airlines

lun. 6/39:07 pmSJU - STL

1 stop13h 32mSpirit Airlines

Deal found 5/13$225

St. Louis to Puerto Rico flights leaving soon

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.

mar. 5/217:44 pmSTL - SJU

1 stop14h 03mFrontier

mar. 5/288:32 pmSJU - STL

1 stop24h 38mFrontier

Deal found 5/14$257

mar. 5/217:44 pmSTL - SJU

1 stop17h 11mMultiple Airlines

lun. 5/273:30 amSJU - STL

1 stop11h 07mMultiple Airlines

Deal found 5/14$304

mar. 5/2110:34 amSTL - SJU

1 stop7h 37mMultiple Airlines

mar. 5/287:57 pmSJU - STL

3 stops19h 53mMultiple Airlines

Deal found 5/14$329

vie. 5/247:44 pmSTL - SJU

1 stop14h 03mFrontier

mar. 5/288:32 pmSJU - STL

1 stop24h 38mFrontier

Deal found 5/13$340

jue. 5/237:44 pmSTL - SJU

1 stop17h 11mMultiple Airlines

sáb. 5/253:30 amSJU - STL

1 stop16h 10mMultiple Airlines

Deal found 5/13$373

mar. 5/212:35 pmSTL - SJU

3 stops20h 08mMultiple Airlines

mar. 5/289:07 pmSJU - STL

3 stops18h 43mMultiple Airlines

Deal found 5/14$376

mar. 5/2110:34 amSTL - SJU

2 stops25h 07mMultiple Airlines

mar. 5/289:07 pmSJU - STL

3 stops18h 43mMultiple Airlines

Deal found 5/14$381

jue. 5/237:44 pmSTL - SJU

1 stop17h 11mFrontier

vie. 5/248:19 pmSJU - STL

1 stop12h 38mFrontier

Deal found 5/13$388

jue. 5/237:30 pmSTL - SJU

1 stop14h 10mSpirit Airlines

lun. 5/279:07 pmSJU - STL

1 stop13h 32mSpirit Airlines

Deal found 5/13$389

One-way flights to Puerto Rico from St. Louis

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.

mar. 5/212:35 pmSTL - SJU

1 stop6h 49mSpirit Airlines

Deal found 5/13$101

mar. 5/2110:34 amSTL - SJU

1 stop7h 37mSpirit Airlines

Deal found 5/14$104

lun. 5/209:26 pmSTL - SJU

1 stop12h 21mFrontier

Deal found 5/13$109

vie. 6/217:44 pmSTL - SJU

1 stop29h 15mFrontier

Deal found 5/13$127

vie. 5/177:44 pmSTL - SJU

1 stop14h 03mFrontier

Deal found 5/13$134

jue. 6/276:30 amSTL - SJU

1 stop6h 41mDelta

Deal found 5/13$187

jue. 6/273:32 pmSTL - SJU

2 stops22h 29mFrontier

Deal found 5/13$190

lun. 5/209:35 amSTL - SJU

3 stops26h 06mMultiple Airlines

Deal found 5/13$192

mar. 5/212:35 pmSTL - SJU

2 stops19h 57mSpirit Airlines

Deal found 5/13$205

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

Fly from

Fly to

Budget

$226 - $247

Route

Depart

Return

Price

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

sáb. 6/8

1 stop16h 08m

San Juan Luis Munoz Marin Intl

sáb. 6/15

1 stop9h 52m

$226

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

lun. 6/17

1 stop14h 25m

San Juan Luis Munoz Marin Intl

mié. 6/19

1 stop28h 59m

$228

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

mié. 5/29

1 stop8h 04m

San Juan Luis Munoz Marin Intl

dom. 6/2

1 stop18h 05m

$230

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

lun. 6/10

1 stop6h 47m

San Juan Luis Munoz Marin Intl

lun. 6/17

1 stop9h 52m

$232

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

mar. 6/25

1 stop12h 12m

San Juan Luis Munoz Marin Intl

lun. 7/15

1 stop7h 51m

$235

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

mar. 5/28

1 stop29h 10m

San Juan Luis Munoz Marin Intl

sáb. 6/1

1 stop9h 45m

$236

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

sáb. 6/8

1 stop16h 08m

San Juan Luis Munoz Marin Intl

vie. 6/14

1 stop28h 59m

$239

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

mar. 5/28

1 stop6h 49m

San Juan Luis Munoz Marin Intl

jue. 5/30

1 stop12h 21m

$240

Lambert-St LouisSan Juan Luis Munoz Marin Intl

STL - SJU

STLSJU

Lambert-St Louis

dom. 6/2

1 stop23h 20m

San Juan Luis Munoz Marin Intl

vie. 6/7

1 stop23h 22m

$247

Flights are sorted by cheapest first

Deals found on 5/14

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

Reviews of airlines servicing Puerto Rico

Read through reviews of airlines operating flights from St. Louis to Puerto Rico, such as Frontier, Spirit Airlines 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

10,706 reviews

Check prices

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

10,706 reviews

Delta

8.0

Very good

10,706 reviews

Check prices

Reviews

1 / 10

American Airlines

7.3

Good

14,561 reviews

Delta

8.0

Very good

10,706 reviews

Check prices

Reviews

1 / 10

Spirit Airlines

6.4

Okay

8,675 reviews

Delta

8.0

Very good

10,706 reviews

Check prices

Reviews

1 / 10

Frontier

6.3

Okay

4,073 reviews

Delta

8.0

Very good

10,706 reviews

Check prices

Reviews

1 / 10

Related info for your journey

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 $300 on Cheapflights?
Yes, there are multiple flights from St. Louis to Puerto Rico for under $300. The cheapest flight booked recently is on Multiple Airlines for just $226, but on average you can expect to pay $241.
Are there last-minute flights available from St. Louis to Puerto Rico for under $300?
There are currently 20+ 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 $101. Users have also found prices from $109 and $187 on Frontier and Delta, respectively.
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 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 5/14.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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Complete your trip
Complete your trip to Puerto Rico by adding a car rental and/or hotel reservation to your travel itinerary.

Puerto Rico car rentals

San Juan Luis Munoz Marin Intl Airport car rentals

Aguadilla Borinquen Airport car rentals

Ponce Mercedita Airport car rentals

San Juan Isla Grande Airport car rentals

Vieques Airport car rentals

Mayagüez Eugenio M De Hostos Airport car rentals

San Juan car rentals

Aguadilla car rentals

Ponce car rentals

Top 6 airlines flying from St. Louis to Puerto Rico

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$142	Average$269	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
Spirit Airlines	Cheapest$154	Average$359	FlexibilityNo cancel fee	On-time65%	Search Spirit Airlines flights
Delta	Cheapest$271	Average$435	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
American Airlines	Cheapest$276	Average$511	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
United Airlines	Cheapest$281	Average$645	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Linear Air Taxi	Cheapest$11,685	Average$87,598	FlexibilityNo cancel fee	On-timeN/A	Search Linear Air Taxi flights

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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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Cheap flights from St. Louis (STL) to Puerto Rico from $101

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.

How far in advance should I book a flight from St. Louis to Puerto Rico?

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Cheap Frontier flights from St. Louis to Puerto Rico

Peruse some of the lowest-priced Frontier flights we've found from St. Louis to Puerto Rico. Make sure to check back often as deals are often changing.

Cheap Spirit Airlines flights from St. Louis to Puerto Rico

Some of the best deals we've found on Spirit Airlines flights traveling from St. Louis to Puerto Rico. Make sure to examine the flight information before completing your reservation.

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

Find cheap flight options from St. Louis to Puerto Rico specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,632,958 searches. Prices were last updated on mayo 14, 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.

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 2,632,958 searches. Data last updated mayo 14, 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.

St. Louis to Puerto Rico flights leaving soon

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.

One-way flights to Puerto Rico from St. Louis

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.

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

Reviews of airlines servicing Puerto Rico

Read through reviews of airlines operating flights from St. Louis to Puerto Rico, such as Frontier, Spirit Airlines and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

Can I find flights from St. Louis to Puerto Rico for under $300 on Cheapflights?

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Alternative routes for St. Louis to Puerto RicoSee 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

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Can Cheapflights 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?

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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.