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Puerto Rico

$105+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJU
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Round-trip from

$209
(Delta)

One-way from

$105
(Delta)

Popular in

December

Cheapest in

September

Average price

$428

Good round-trip deal

$590 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. 7% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This Delta deal was found by Cheapflights users on 4/29. 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.
Sat 7/1210:10 amSTL - SJU
1 stop11h 13mDelta
Tue 7/156:15 amSJU - STL
1 stop11h 03mDelta
Deal found 4/29$209
This American Airlines deal was found by Cheapflights users on 4/28. 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 5/246:20 pmSTL - SJU
1 stop15h 44mAmerican Airlines
Tue 5/275:25 amSJU - STL
1 stop16h 33mAmerican Airlines
Deal found 4/28$244
This eDestinos deal was found by Cheapflights users on 4/30. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2410:10 amSTL - SJU
1 stop7h 57mSpirit Airlines
Sat 6/79:23 pmSJU - STL
1 stop12h 52mSpirit Airlines
Deal found 4/30$272
This United Airlines deal was found by Cheapflights users on 4/29. 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 5/275:00 amSTL - SJU
1 stop8h 44mUnited Airlines
Tue 6/33:56 pmSJU - STL
1 stop7h 49mUnited Airlines
Deal found 4/29$274
This Delta deal was found by Cheapflights users on 4/30. 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 10/12:55 pmMCI - SJU
1 stop6h 13mDelta
Wed 10/85:30 pmSJU - MCI
1 stop7h 27mDelta
Deal found 4/30$275
This CheapOair deal was found by Cheapflights users on 4/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/55:45 pmSTL - SJU
1 stop16h 11mFrontier
Sat 5/1012:05 pmSJU - STL
1 stop13h 01mFrontier
Deal found 4/29$299
This CheapOair deal was found by Cheapflights users on 4/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1711:26 amMCI - SJU
1 stop6h 41mSpirit Airlines
Fri 5/238:12 pmSJU - MCI
1 stop15h 19mSpirit Airlines
Deal found 4/29$310
This American Airlines deal was found by Cheapflights users on 4/30. 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 5/176:15 amMCI - SJU
1 stop13h 18mAmerican Airlines
Fri 5/237:15 amSJU - MCI
1 stop17h 44mAmerican Airlines
Deal found 4/30$315
This FlightHub deal was found by Cheapflights users on 4/29. 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.
Thu 5/2910:10 amSTL - SJU
1 stop7h 57mMultiple Airlines
Mon 6/29:30 pmSJU - STL
1 stop27h 07mMultiple Airlines
Deal found 4/29$323
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 8/199:15 amSGF - SJU
2 stops13h 50mAmerican Airlines
Sat 8/308:00 amSJU - SGF
1 stop10h 45mAmerican Airlines
Deal found 4/30$355
This Southwest deal was found by Cheapflights users on 4/29. 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.
Thu 10/28:10 pmSTL - SJU
1 stop11h 55mSouthwest
Tue 10/710:50 amSJU - STL
1 stop10h 10mSouthwest
Deal found 4/29$357
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 10/17:30 amMCI - SJU
2 stops15h 27mUnited Airlines
Tue 10/71:05 amSJU - MCI
2 stops10h 32mUnited Airlines
Deal found 4/30$365

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 May 1, 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

Sat 7/12

10:10 am-10:23 pm

1 stop11h 13m

San Juan Luis Munoz Marin Intl

Tue 7/15

6:15 am-4:18 pm

1 stop11h 03m

$209

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 5/24

6:20 pm-11:04 am

1 stop15h 44m

San Juan Luis Munoz Marin Intl

Tue 5/27

5:25 am-8:58 pm

1 stop16h 33m

$244

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 5/24

10:10 am-7:07 pm

1 stop7h 57m

San Juan Luis Munoz Marin Intl

Sat 6/7

9:23 pm-9:15 am

1 stop12h 52m

$272

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Tue 5/27

5:00 am-2:44 pm

1 stop8h 44m

San Juan Luis Munoz Marin Intl

Tue 6/3

3:56 pm-10:45 pm

1 stop7h 49m

$274

Kansas CitySan Juan

MCI - SJU

MCISJU

Kansas City

Wed 10/1

2:55 pm-10:08 pm

1 stop6h 13m

San Juan Luis Munoz Marin Intl

Wed 10/8

5:30 pm-11:57 pm

1 stop7h 27m

$275

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Mon 5/19

5:45 pm-2:51 am

1 stop8h 06m

San Juan Luis Munoz Marin Intl

Sat 5/24

4:38 pm-11:44 pm

1 stop8h 06m

$308

Kansas CitySan Juan

MCI - SJU

MCISJU

Kansas City

Sat 5/17

11:26 am-7:07 pm

1 stop6h 41m

San Juan Luis Munoz Marin Intl

Fri 5/23

8:12 pm-10:31 am

1 stop15h 19m

$310

Kansas CitySan Juan

MCI - SJU

MCISJU

Kansas City

Sat 5/17

6:15 am-8:33 pm

1 stop13h 18m

San Juan Luis Munoz Marin Intl

Fri 5/23

7:15 am-11:59 pm

1 stop17h 44m

$315

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Thu 5/29

10:10 am-7:07 pm

1 stop7h 57m

San Juan Luis Munoz Marin Intl

Mon 6/2

9:30 pm-11:37 pm

1 stop27h 07m

$323

SpringfieldSan Juan

SGF - SJU

SGFSJU

Springfield-Branson

Tue 8/19

9:15 am-12:05 am

2 stops13h 50m

San Juan Luis Munoz Marin Intl

Sat 8/30

8:00 am-5:45 pm

1 stop10h 45m

$355

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 36 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 December is currently the most expensive (average of $336). 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 May 1, 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 May 1, 2025.
Read through reviews of airlines operating flights from Missouri to Puerto Rico, such as Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,294 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

    $105 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and Spirit Airlines, with prices starting from $110 and $135, 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 December is currently the most expensive (average of $336). 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$140Average$262FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$155Average$295FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$252Average$627FlexibilityNo cancel feeOn-time69%
DeltaCheapest$254Average$380FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$262Average$510FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$347Average$586FlexibilityNo cancel feeOn-time63%

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