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$90+ Cheap flights from Puerto Rico to Missouri

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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — STL
Jan 6 — Jan 131
Tue 1/6
Tue 1/13
1 adult, Economy
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Cheap flight deals from Puerto Rico to Missouri

Cheapest flights from Puerto Rico to Missouri
Explore the most affordable flight options available from Puerto Rico to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 7, 2025.

This Frontier deal was found by Cheapflights users on 12/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:33 amSJU - STL
1 stop14h 00mFrontier
Mon 12/2910:40 amSTL - SJU
1 stop7h 47mFrontier
Deal found 12/6$275
This Frontier deal was found by Cheapflights users on 12/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/205:09 pmSJU - STL
1 stop7h 24mFrontier
Mon 12/294:27 pmSTL - SJU
1 stop8h 23mFrontier
Deal found 12/5$300
This Frontier deal was found by Cheapflights users on 12/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/611:05 amSJU - STL
1 stop13h 28mFrontier
Tue 12/93:30 pmSTL - SJU
1 stop9h 20mFrontier
Deal found 12/6$302
This Frontier deal was found by Cheapflights users on 12/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:09 pmSJU - STL
1 stop7h 24mFrontier
Mon 12/153:30 pmSTL - SJU
1 stop9h 20mFrontier
Deal found 12/5$314
This Priceline deal was found by Cheapflights users on 12/6. 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 12/93:55 amSJU - STL
1 stop20h 38mFrontier
Fri 12/129:54 amSTL - SJU
1 stop22h 01mFrontier
Deal found 12/6$316
This Kiwi.com deal was found by Cheapflights users on 12/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:30 amSJU - STL
1 stop28h 10mMultiple Airlines
Mon 12/2910:40 amSTL - SJU
2 stops23h 49mMultiple Airlines
Deal found 12/6$363
This Kiwi.com deal was found by Cheapflights users on 12/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:09 pmSJU - STL
1 stop17h 50mMultiple Airlines
Mon 12/159:54 amSTL - SJU
2 stops12h 51mMultiple Airlines
Deal found 12/5$373
This FlightHub deal was found by Cheapflights users on 12/6. 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.
Fri 12/194:55 pmSJU - MCI
1 stop8h 04mSpirit Airlines
Mon 12/296:15 pmMCI - SJU
1 stop15h 43mSpirit Airlines
Deal found 12/6$403
This CheapOair deal was found by Cheapflights users on 12/6. 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 12/294:55 pmSJU - MCI
1 stop8h 04mSpirit Airlines
Fri 1/26:15 pmMCI - SJU
1 stop15h 43mSpirit Airlines
Deal found 12/6$439
This United Airlines deal was found by Cheapflights users on 12/5. 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.
Mon 12/83:46 pmSJU - MCI
1 stop8h 44mUnited Airlines
Tue 12/911:36 amMCI - SJU
2 stops11h 00mUnited Airlines
Deal found 12/5$465
This eDestinos deal was found by Cheapflights users on 12/6. 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.
Mon 12/292:44 pmSJU - MCI
2 stops45h 24mFrontier
Fri 1/211:13 amMCI - SJU
2 stops19h 45mFrontier
Deal found 12/6$489
This American Airlines deal was found by Cheapflights users on 12/6. 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 12/291:30 amSJU - MCI
1 stop9h 29mAmerican Airlines
Mon 1/56:00 amMCI - SJU
1 stop15h 59mAmerican Airlines
Deal found 12/6$493

Find flight deals from Puerto Rico to Missouri

Keep the following information in mind while searching for Puerto Rico to Missouri flight deals. Data was last updated December 7, 2025.

Round-trip from

$180
(Frontier)

One-way from

$90
(Frontier)

Popular in

July

Cheapest in

January

Average price

$434
From Puerto Rico to Missouri
Search Deals
One-way flight from Puerto Rico to Missouri
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($57 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Puerto Rico to Missouri 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 December 7, 2025.
Use the filters below to find and compare flights from Puerto Rico to Missouri that are best for you.

Fly from

Puerto Rico

Fly to

Missouri

Route

Depart

Return

Price

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Thu 2/19

9:37 pm-7:50 am

1 stop12h 13m

Lambert-St Louis

Sat 2/21

5:11 pm-2:50 am

1 stop7h 39m

$180

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Thu 1/22

4:36 pm-11:33 pm

1 stop8h 57m

Lambert-St Louis

Mon 1/26

10:16 am-6:40 pm

1 stop6h 24m

$201

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Thu 1/22

4:36 pm-11:33 pm

1 stop8h 57m

Lambert-St Louis

Sat 1/24

12:12 pm-11:59 pm

1 stop9h 47m

$201

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Thu 1/15

6:00 am-10:34 pm

1 stop18h 34m

Lambert-St Louis

Mon 1/19

12:47 pm-2:30 am

1 stop11h 43m

$210

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Fri 1/23

4:30 pm-11:23 pm

1 stop8h 53m

Lambert-St Louis

Sun 1/25

6:00 am-5:17 pm

1 stop9h 17m

$225

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Thu 3/26

5:00 am-12:28 pm

1 stop8h 28m

Lambert-St Louis

Mon 3/30

6:20 pm-9:00 am

1 stop13h 40m

$225

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Wed 1/21

7:30 am-4:07 pm

1 stop10h 37m

Lambert-St Louis

Tue 1/27

7:10 am-5:17 pm

1 stop8h 07m

$225

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Fri 1/23

4:30 pm-11:23 pm

1 stop8h 53m

Lambert-St Louis

Tue 1/27

1:00 pm-8:58 pm

1 stop5h 58m

$225

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Thu 1/15

6:27 pm-11:39 pm

1 stop7h 12m

Lambert-St Louis

Mon 1/19

3:45 pm-11:45 pm

1 stop6h 00m

$225

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Wed 1/21

7:30 am-11:54 am

1 stop6h 24m

Lambert-St Louis

Mon 1/26

7:10 am-5:17 pm

1 stop8h 07m

$225

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/5

Showing 1-10 of 42 results
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Best time to book a flight from Puerto Rico to Missouri

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

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

Currently, June is the cheapest month in which you can book a flight from Puerto Rico to Missouri (average of $125). Flying from Puerto Rico to Missouri in August is currently the most expensive (average of $253). 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 PR to MO?

Find hourly flight availability from Puerto Rico to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 7, 2025.

One of the essential ways to save on airfare from Puerto Rico to Missouri is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 18% on airfare.

What is the cheapest day to fly from Puerto Rico to Missouri?

Use this chart to determine the cheapest time to fly round-trip from Puerto Rico to Missouri. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Puerto Rico to Missouri flight should consider departing on Monday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. 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 Missouri. Reviews last updated December 7, 2025.
See what other customers who have flown with Southwest, Delta, and American Airlines from Puerto Rico to Missouri 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.
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,253 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,013 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,046 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Spirit Airlines
6.3
Okay
8,167 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.8
Fair
3,090 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Puerto Rico to Missouri. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Puerto Rico to Missouri?

    For as low as $225, Frontier can have you in Missouri from Puerto Rico in 8h 53m. Puerto Rico and Missouri are separated by a distance of 2024 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Puerto Rico to Missouri one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $83. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Puerto Rico to Missouri for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Puerto Rico to Missouri 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 Puerto Rico to Missouri?

    Currently, June is the cheapest month in which you can book a flight from Puerto Rico to Missouri (average of $125). Flying from Puerto Rico to Missouri in August is currently the most expensive (average of $253). 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 Puerto Rico to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Puerto Rico to Missouri

Discover the top 6 airlines that operate flights from Puerto Rico to Missouri. 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 December 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$261FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$202Average$331FlexibilityNo cancel feeOn-time65%
DeltaCheapest$205Average$390FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$234Average$416FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$235Average$558FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$258Average$501FlexibilityNo cancel feeOn-time69%

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