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Puerto Rico

$93+ Cheap flights from Missouri to Puerto Rico

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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJU
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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Cheap flight deals from Missouri to Puerto Rico

Keep the following information in mind while searching for Missouri to Puerto Rico flight deals. Data was last updated June 18, 2025.

Round-trip from

$212
(Priceline)

One-way from

$93
(Priceline)

Popular in

December

Cheapest in

September

Average price

$450

Good round-trip deal

$566 or less
From Missouri to Puerto Rico
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One-way flight from Missouri to Puerto Rico
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Highest demand for flights based on searches. 2% potential increase in price ($13 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Missouri to Puerto Rico.
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Find flight deals from Missouri to Puerto Rico

Cheapest flights from Missouri to Puerto Rico
Explore the most affordable flight options available from Missouri to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.

This Priceline deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/245:47 pmSTL - SJU
1 stop7h 48mFrontier
Sun 6/295:40 amSJU - STL
1 stop19h 13mFrontier
Deal found 6/17$212
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:25 amSTL - SJU
1 stop7h 45mSouthwest
Fri 9/193:30 pmSJU - STL
2 stops8h 05mSouthwest
Deal found 6/16$219
This Priceline deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/115:40 pmSTL - SJU
1 stop7h 59mMultiple Airlines
Sun 7/131:37 amSJU - STL
1 stop9h 15mMultiple Airlines
Deal found 6/17$234
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/217:20 amSTL - SJU
1 stop7h 48mDelta
Sat 9/2712:55 pmSJU - STL
1 stop6h 07mDelta
Deal found 6/15$259
This Mytrip deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/3011:28 amSTL - SJU
1 stop6h 51mSpirit Airlines
Thu 7/37:36 pmSJU - STL
2 stops22h 28mSpirit Airlines
Deal found 6/16$263
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/183:10 pmMCI - SJU
1 stop7h 35mSouthwest
Fri 10/245:50 amSJU - MCI
1 stop11h 20mSouthwest
Deal found 6/16$275
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/45:06 amMCI - SJU
1 stop6h 40mAmerican Airlines
Sat 10/1112:00 pmSJU - MCI
2 stops11h 24mAmerican Airlines
Deal found 6/17$276
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/112:30 pmMCI - SJU
1 stop8h 38mDelta
Wed 10/85:30 pmSJU - MCI
1 stop7h 27mDelta
Deal found 6/16$285
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/15:27 amSTL - SJU
1 stop16h 29mAmerican Airlines
Fri 9/54:42 pmSJU - STL
1 stop7h 25mAmerican Airlines
Deal found 6/16$295
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/912:24 pmSTL - SJU
1 stop10h 12mUnited Airlines
Thu 12/112:05 amSJU - STL
2 stops14h 15mUnited Airlines
Deal found 6/17$309
This FlightHub deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/146:04 pmMCI - SJU
1 stop20h 26mSpirit Airlines
Fri 7/1810:14 pmSJU - MCI
1 stop19h 55mSpirit Airlines
Deal found 6/16$313
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/149:00 amSGF - SJU
1 stop10h 26mUnited Airlines
Wed 11/197:45 amSJU - SGF
1 stop10h 22mUnited Airlines
Deal found 6/18$345

Cheapflights Fare Finder

Customize your flight search to find flights from Missouri 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 2,558,603 searches. Data last updated June 18, 2025.
Use the filters below to find and compare flights from Missouri to Puerto Rico that are best for you.

Fly from

Missouri

Fly to

Puerto Rico

Route

Depart

Return

Price

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Tue 6/24

5:47 pm-2:35 am

1 stop7h 48m

San Juan Luis Munoz Marin Intl

Sun 6/29

5:40 am-11:53 pm

1 stop19h 13m

$212

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Fri 7/11

5:40 pm-2:39 am

1 stop7h 59m

San Juan Luis Munoz Marin Intl

Sun 7/13

1:37 am-9:52 am

1 stop9h 15m

$234

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Mon 6/30

11:28 am-7:19 pm

1 stop6h 51m

San Juan Luis Munoz Marin Intl

Thu 7/3

7:36 pm-5:04 pm

2 stops22h 28m

$263

Kansas CitySan Juan

MCI - SJU

MCISJU

Kansas City

Sun 8/10

10:38 am-10:23 pm

1 stop10h 45m

San Juan Luis Munoz Marin Intl

Thu 8/14

7:30 am-3:06 pm

1 stop8h 36m

$275

Kansas CitySan Juan

MCI - SJU

MCISJU

Kansas City

Tue 7/8

9:15 am-11:25 pm

1 stop13h 10m

San Juan Luis Munoz Marin Intl

Mon 7/14

7:00 am-12:40 pm

1 stop6h 40m

$295

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Mon 9/1

5:27 am-10:56 pm

1 stop16h 29m

San Juan Luis Munoz Marin Intl

Fri 9/5

4:42 pm-11:07 pm

1 stop7h 25m

$295

Kansas CitySan Juan

MCI - SJU

MCISJU

Kansas City

Mon 7/14

6:04 pm-3:30 pm

1 stop20h 26m

San Juan Luis Munoz Marin Intl

Fri 7/18

10:14 pm-5:09 pm

1 stop19h 55m

$313

Kansas CitySan Juan

MCI - SJU

MCISJU

Kansas City

Sun 9/7

6:29 pm-11:11 am

2 stops15h 42m

San Juan Luis Munoz Marin Intl

Fri 9/12

3:05 pm-9:03 am

1 stop18h 58m

$335

SpringfieldSan Juan

SGF - SJU

SGFSJU

Springfield-Branson

Fri 11/14

9:00 am-9:26 pm

1 stop10h 26m

San Juan Luis Munoz Marin Intl

Wed 11/19

7:45 am-4:07 pm

1 stop10h 22m

$345

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sun 7/27

5:30 pm-1:40 am

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Tue 7/29

5:30 am-1:20 pm

2 stops8h 50m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 32 results
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Best time to book a flight from Missouri to Puerto Rico

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

Cheapflights Insights

Everything you need to know about your flight from Missouri to Puerto Rico

What is the cheapest month to book a flight from Missouri to Puerto Rico?

Currently, September is the cheapest month in which you can book a flight from Missouri to Puerto Rico (average of $254). Flying from Missouri to Puerto Rico in June 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.

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

Find hourly flight availability from Missouri 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 18, 2025.

When flying from Missouri 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.

Rainfall in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Puerto Rico ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit Puerto Rico when rainfall is around 2.2 in.

Temperature in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Puerto Rico, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 18, 2025.
Read through reviews of airlines operating flights from Missouri to Puerto Rico, such as Southwest, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,280 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,280 reviews
Southwest
8.0
Very good
4,280 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,964 reviews
Southwest
8.0
Very good
4,280 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,810 reviews
Southwest
8.0
Very good
4,280 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,280 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Avianca
6.7
Okay
2,350 reviews
Southwest
8.0
Very good
4,280 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Missouri 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 are the cheapest airlines to fly from Missouri to Puerto Rico one-way?

    $93 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $110 and $116, respectively.

  • Can I find deals for flights from Missouri to Puerto Rico that include hotel bookings?

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

  • How can I find direct flights from Missouri to Puerto Rico?

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

  • Can I find deals for business class flights from Missouri to Puerto Rico?

    Yes. Cheapflights offers flight deals from Missouri 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.

  • What is the cheapest month to book a flight from Missouri to Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Missouri to Puerto Rico (average of $254). Flying from Missouri to Puerto Rico in June 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Missouri 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 Missouri to Puerto Rico

Discover the top 6 airlines that operate flights from Missouri 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 2,558,603 searches. Data last updated June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$140Average$248FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$155Average$314FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$219Average$573FlexibilityNo cancel feeOn-time69%
DeltaCheapest$222Average$381FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$254Average$505FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$349Average$584FlexibilityNo cancel feeOn-time63%

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