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$147+ 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJO
dic. 13 — dic. 201
sáb. 12/13
sáb. 12/20
1 adult, Economy
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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 noviembre 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
mar. 12/3010:48 amSTL - SJO
1 stop26h 54mMultiple Airlines
vie. 1/2312:33 pmSJO - STL
1 stop11h 00mMultiple Airlines
Deal found 11/12$274
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
mar. 12/3010:48 amSTL - SJO
1 stop26h 54mMultiple Airlines
mié. 1/211:30 pmSJO - STL
2 stops34h 03mMultiple Airlines
Deal found 11/12$294
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
mar. 12/3010:48 amSTL - SJO
1 stop26h 54mMultiple Airlines
mar. 1/201:30 pmSJO - STL
2 stops34h 03mMultiple Airlines
Deal found 11/12$299
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
mar. 12/3010:48 amSTL - SJO
1 stop26h 54mFrontier
sáb. 1/101:35 pmSJO - STL
1 stop25h 13mFrontier
Deal found 11/12$300
This CheapOair deal was found by Cheapflights users on 11/12. 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.
sáb. 12/67:01 pmMCI - SJO
1 stop17h 24mSpirit Airlines
vie. 12/1212:39 pmSJO - MCI
1 stop10h 36mSpirit Airlines
Deal found 11/12$310
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
mié. 12/314:27 pmSTL - SJO
1 stop19h 15mMultiple Airlines
vie. 1/2312:33 pmSJO - STL
1 stop11h 00mMultiple Airlines
Deal found 11/12$313
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
mar. 12/3010:48 amSTL - SJO
1 stop26h 54mMultiple Airlines
jue. 1/221:30 pmSJO - STL
2 stops17h 21mMultiple Airlines
Deal found 11/12$314
This Delta deal was found by Cheapflights users on 11/12. 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.
jue. 11/273:15 pmSTL - SJO
1 stop6h 52mDelta
vie. 12/57:00 amSJO - STL
1 stop9h 06mDelta
Deal found 11/12$318
This American Airlines deal was found by Cheapflights users on 11/12. 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.
mié. 11/262:17 pmSTL - SJO
1 stop7h 56mAmerican Airlines
jue. 12/43:38 pmSJO - STL
1 stop8h 21mAmerican Airlines
Deal found 11/12$322
This Expedia deal was found by Cheapflights users on 11/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/87:01 pmMCI - SJO
1 stop17h 24mSpirit Airlines
lun. 12/1512:39 pmSJO - MCI
1 stop10h 36mSpirit Airlines
Deal found 11/10$323
This American Airlines deal was found by Cheapflights users on 11/11. 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.
dom. 12/76:53 pmSTL - SJO
1 stop16h 59mAmerican Airlines
dom. 12/146:20 amSJO - STL
1 stop13h 07mAmerican Airlines
Deal found 11/11$323
This American Airlines deal was found by Cheapflights users on 11/11. 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.
sáb. 12/61:59 pmSTL - SJO
1 stop8h 29mAmerican Airlines
sáb. 12/136:00 amSJO - STL
1 stop10h 19mAmerican Airlines
Deal found 11/11$327

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 noviembre 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$274
(Kiwi.com)

One-way from

$147
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$501
Provider with most accurate pricing for Lambert-St Louis-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-San José Juan Santamaria Intl flights.
Search Deals
From Missouri to Costa Rica
Search Deals
One-way flight from Missouri to Costa Rica
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($136 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 noviembre 13, 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

dom. 2/1

3:37 pm-11:43 pm

1 stop8h 06m

San José Juan Santamaria Intl

sáb. 2/7

6:38 am-4:20 pm

1 stop9h 42m

$318

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

dom. 1/18

7:10 am-10:15 pm

1 stop15h 05m

San José Juan Santamaria Intl

jue. 2/19

7:00 am-11:38 pm

1 stop16h 38m

$318

Kansas CitySan José

MCI - SJO

MCISJO

Kansas City

dom. 1/25

4:28 pm-12:22 pm

2 stops19h 54m

San José Juan Santamaria Intl

vie. 1/30

7:22 am-3:33 pm

1 stop8h 11m

$335

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

mié. 12/31

6:00 am-12:56 pm

1 stop6h 56m

San José Juan Santamaria Intl

jue. 1/22

7:00 am-2:49 pm

1 stop7h 49m

$339

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

jue. 1/1

7:00 am-9:55 pm

1 stop14h 55m

San José Juan Santamaria Intl

vie. 1/23

7:00 am-8:39 pm

1 stop13h 39m

$339

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

jue. 1/1

7:00 am-9:55 pm

1 stop14h 55m

San José Juan Santamaria Intl

mié. 1/21

7:00 am-8:39 pm

1 stop13h 39m

$339

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

mié. 3/11

6:00 am-12:50 pm

1 stop7h 50m

Liberia

mar. 3/17

1:15 pm-11:40 pm

1 stop9h 25m

$351

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

mar. 3/3

6:00 am-1:50 pm

1 stop7h 50m

Liberia

jue. 3/5

2:15 pm-11:38 pm

1 stop9h 23m

$351

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

mié. 3/11

6:00 am-12:10 pm

1 stop7h 10m

Liberia

mar. 3/17

7:35 am-9:00 pm

2 stops12h 25m

$355

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

jue. 1/1

7:00 am-9:55 pm

1 stop14h 55m

San José Juan Santamaria Intl

sáb. 1/17

7:00 am-2:49 pm

1 stop7h 49m

$359

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 60 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, October is the cheapest month in which you can book a flight from Missouri to Costa Rica (average of $162). Flying from Missouri to Costa Rica in December is currently the most expensive (average of $417). 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 noviembre 13, 2025.

When flying from Missouri to Costa Rica, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 28% versus a flight in the morning.

What is the cheapest day to fly from Missouri to Costa Rica?

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

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

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 7h 10m. The distance from Missouri to Costa Rica is about 1967 mi. This flight may include one or multiple stops.

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

    $147 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Spirit Airlines and Delta, with prices starting from $174 and $183, 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, October is the cheapest month in which you can book a flight from Missouri to Costa Rica (average of $162). Flying from Missouri to Costa Rica in December is currently the most expensive (average of $417). 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

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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 noviembre 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$521FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$263Average$415FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$334Average$610FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$337Average$673FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$366Average$614FlexibilityNo cancel feeOn-time63%

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