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$127+ Cheap flights from Missouri to Costa Rica

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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJO
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Missouri to Costa Rica

Keep the following information in mind while searching for Missouri to Costa Rica flight deals. Data was last updated August 18, 2025.

Round-trip from

$286
(Delta)

One-way from

$127
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$401
From Missouri to Costa Rica
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One-way flight from Missouri to Costa Rica
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Highest demand for flights based on searches. 10% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Missouri to Costa Rica

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

This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/189:00 amSTL - SJO
1 stop13h 15mDelta
Tue 11/257:00 amSJO - STL
1 stop8h 58mDelta
Deal found 8/18$286
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Mon 9/295:28 amSTL - LIR
1 stop7h 21mAmerican Airlines
Fri 10/32:02 pmLIR - STL
1 stop18h 12mAmerican Airlines
Deal found 8/17$287
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 9/237:16 amSTL - SJO
2 stops13h 26mAmerican Airlines
Thu 9/256:00 amSJO - STL
2 stops13h 25mAmerican Airlines
Deal found 8/17$290
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 11/268:40 amSTL - SJO
1 stop13h 21mAmerican Airlines
Thu 12/411:35 amSJO - STL
2 stops11h 59mAmerican Airlines
Deal found 8/17$294
This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/16:00 amSTL - LIR
1 stop7h 00mDelta
Wed 10/11:25 pmLIR - STL
1 stop7h 35mDelta
Deal found 8/18$295
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Mon 9/15:27 amSTL - LIR
2 stops8h 59mAmerican Airlines
Wed 10/112:49 pmLIR - STL
2 stops19h 37mAmerican Airlines
Deal found 8/17$299
This American Airlines deal was found by Cheapflights users on 8/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/92:11 pmSTL - LIR
2 stops22h 38mAmerican Airlines
Tue 9/1612:49 pmLIR - STL
2 stops19h 27mAmerican Airlines
Deal found 8/18$304
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:30 amSTL - SJO
1 stop13h 45mDelta
Fri 12/57:00 amSJO - STL
1 stop16h 39mDelta
Deal found 8/17$306
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Mon 9/157:16 amSTL - LIR
1 stop6h 46mAmerican Airlines
Mon 9/222:02 pmLIR - STL
1 stop7h 48mAmerican Airlines
Deal found 8/17$307
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Sun 10/198:05 pmSTL - SJO
2 stops18h 33mAmerican Airlines
Sat 10/256:44 amSJO - STL
2 stops14h 22mAmerican Airlines
Deal found 8/17$310
This American Airlines deal was found by Cheapflights users on 8/16. 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.
Tue 9/95:18 amSTL - SJO
1 stop13h 53mAmerican Airlines
Sun 9/146:00 amSJO - STL
1 stop16h 59mAmerican Airlines
Deal found 8/16$311
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 10/215:09 pmSTL - SJO
1 stop26h 07mAmerican Airlines
Sat 10/256:44 amSJO - STL
1 stop15h 34mAmerican Airlines
Deal found 8/17$312

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Costa Rica 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 August 18, 2025.
Use the filters below to find and compare flights from Missouri to Costa Rica that are best for you.

Fly from

Missouri

Fly to

Costa Rica

Route

Depart

Return

Price

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Tue 9/23

5:28 am-7:42 pm

1 stop15h 14m

San José Juan Santamaria Intl

Thu 9/25

6:00 am-11:59 pm

1 stop16h 59m

$286

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Mon 9/29

5:28 am-11:49 am

1 stop7h 21m

Liberia

Fri 10/3

12:49 pm-11:59 pm

1 stop10h 10m

$287

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Tue 9/9

5:28 am-11:49 am

1 stop7h 21m

Liberia

Tue 9/16

12:49 pm-9:16 am

2 stops19h 27m

$291

Kansas CitySan José

MCI - SJO

MCISJO

Kansas City

Mon 1/12

4:20 pm-11:00 pm

1 stop6h 40m

San José Juan Santamaria Intl

Thu 1/22

6:25 am-4:16 pm

1 stop9h 51m

$296

Kansas CitySan José

MCI - SJO

MCISJO

Kansas City

Sat 2/14

8:05 pm-2:09 pm

1 stop18h 04m

San José Juan Santamaria Intl

Thu 2/19

6:20 am-4:38 pm

1 stop10h 18m

$302

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Thu 10/9

7:01 am-6:16 pm

1 stop12h 15m

San José Juan Santamaria Intl

Tue 10/14

6:44 am-11:18 pm

1 stop15h 34m

$306

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Tue 9/9

5:18 am-6:11 pm

1 stop13h 53m

San José Juan Santamaria Intl

Sat 9/13

1:45 pm-8:05 am

1 stop17h 20m

$306

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Wed 10/22

9:43 am-6:16 pm

1 stop9h 33m

San José Juan Santamaria Intl

Sat 10/25

6:44 am-6:29 pm

1 stop10h 45m

$306

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Tue 10/21

8:04 pm-12:00 pm

2 stops16h 56m

San José Juan Santamaria Intl

Sat 10/25

6:44 am-11:18 pm

1 stop15h 34m

$310

Kansas CitySan José

MCI - SJO

MCISJO

Kansas City

Sat 12/6

9:30 am-10:15 pm

1 stop12h 45m

San José Juan Santamaria Intl

Fri 12/12

7:00 am-10:21 pm

1 stop15h 21m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 56 results
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Best time to book a flight from Missouri to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica 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 Costa Rica

What is the cheapest month to book a flight from Missouri to Costa Rica?

Currently, September is the cheapest month in which you can book a flight from Missouri to Costa Rica (average of $398). Flying from Missouri to Costa Rica in March is currently the most expensive (average of $555). 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 CR?

Find hourly flight availability from Missouri to Costa Rica. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Costa Rica as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Costa Rica. 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 Missouri to Costa Rica?

    Departing from Missouri to Costa Rica will take you 8h 30m. The distance from Missouri to Costa Rica is about 2060 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Missouri to Costa Rica one-way?

    $127 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $127 and $127, respectively.

  • Can I find deals for flights from Missouri to Costa Rica that include hotel bookings?

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

  • How can I find direct flights from Missouri to Costa Rica?

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

  • Can I find deals for business class flights from Missouri to Costa Rica?

    Yes. Cheapflights offers flight deals from Missouri to Costa Rica 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 Costa Rica?

    Currently, September is the cheapest month in which you can book a flight from Missouri to Costa Rica (average of $398). Flying from Missouri to Costa Rica in March is currently the most expensive (average of $555). 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 Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Missouri to Costa Rica

Discover the top 5 airlines that operate flights from Missouri to Costa Rica. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$257Average$544FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$263Average$421FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$359Average$646FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$366Average$637FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$396Average$654FlexibilityNo cancel feeOn-time69%

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