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$104+ 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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJO
Dec 24 — Dec 311
Wed 12/24
Wed 12/31
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 November 24, 2025.

This KAYAK deal was found by Cheapflights users on 11/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:01 pmMCI - SJO
1 stop17h 24mSpirit Airlines
Fri 12/121:31 pmSJO - MCI
1 stop28h 25mSpirit Airlines
Deal found 11/22$280
This KAYAK deal was found by Cheapflights users on 11/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:15 pmMCI - SJO
1 stop18h 10mSpirit Airlines
Wed 1/141:30 pmSJO - MCI
1 stop21h 01mSpirit Airlines
Deal found 11/21$302
This KAYAK deal was found by Cheapflights users on 11/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:15 pmMCI - SJO
1 stop18h 10mSpirit Airlines
Sun 1/181:30 pmSJO - MCI
1 stop21h 01mSpirit Airlines
Deal found 11/22$318
This Kiwi.com deal was found by Cheapflights users on 11/23. 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 12/316:15 pmMCI - SJO
1 stop18h 10mMultiple Airlines
Fri 1/92:58 pmSJO - MCI
2 stops24h 35mMultiple Airlines
Deal found 11/23$359
This Kiwi.com deal was found by Cheapflights users on 11/21. 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.
Sat 12/133:30 pmSTL - SJO
1 stop20h 12mMultiple Airlines
Wed 12/242:52 pmSJO - STL
1 stop18h 48mMultiple Airlines
Deal found 11/21$373
This Kiwi.com deal was found by Cheapflights users on 11/23. 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.
Fri 12/1210:42 amSTL - SJO
2 stops25h 00mMultiple Airlines
Tue 12/1612:39 pmSJO - STL
1 stop9h 54mMultiple Airlines
Deal found 11/23$376
This United Airlines deal was found by Cheapflights users on 11/23. 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 12/106:15 amSTL - LIR
1 stop12h 22mUnited Airlines
Sun 12/148:35 amLIR - STL
1 stop13h 23mUnited Airlines
Deal found 11/23$377
This American Airlines deal was found by Cheapflights users on 11/22. 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 12/66:03 pmSTL - LIR
2 stops18h 27mAmerican Airlines
Sat 12/131:25 pmLIR - STL
2 stops18h 43mAmerican Airlines
Deal found 11/22$380
This American Airlines deal was found by Cheapflights users on 11/23. 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 12/105:10 amSTL - LIR
1 stop9h 10mAmerican Airlines
Sun 12/143:20 pmLIR - STL
2 stops18h 12mAmerican Airlines
Deal found 11/23$385
This United Airlines deal was found by Cheapflights users on 11/23. 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 12/126:42 pmSTL - SJO
1 stop18h 14mUnited Airlines
Tue 12/162:20 pmSJO - STL
1 stop7h 38mUnited Airlines
Deal found 11/23$388
This American Airlines deal was found by Cheapflights users on 11/23. 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.
Thu 12/187:00 amSTL - LIR
1 stop7h 27mAmerican Airlines
Tue 12/2311:55 amLIR - STL
1 stop10h 40mAmerican Airlines
Deal found 11/23$395
This American Airlines deal was found by Cheapflights users on 11/22. 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 12/61:20 pmSTL - SJO
1 stop7h 51mAmerican Airlines
Thu 12/113:06 pmSJO - STL
1 stop18h 26mAmerican Airlines
Deal found 11/22$416

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 November 24, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$280
(KAYAK)

One-way from

$104
(Trip.com)

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).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 24, 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

Kansas CitySan José

MCI - SJO

MCISJO

Kansas City

Sun 2/1

11:26 am-12:22 pm

1 stop24h 56m

San José Juan Santamaria Intl

Mon 2/9

1:30 pm-3:33 pm

2 stops26h 03m

$324

Kansas CitySan José

MCI - SJO

MCISJO

Kansas City

Wed 1/28

4:28 pm-11:37 am

1 stop19h 09m

San José Juan Santamaria Intl

Wed 2/4

1:30 pm-10:31 am

1 stop21h 01m

$330

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Mon 2/2

6:00 am-6:37 pm

1 stop12h 37m

Liberia

Fri 2/13

8:35 am-10:14 pm

1 stop13h 39m

$331

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Sun 2/1

7:10 am-1:50 pm

1 stop6h 40m

Liberia

Thu 2/5

2:05 pm-11:37 pm

1 stop9h 32m

$331

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Sun 1/18

7:10 am-1:50 pm

1 stop6h 40m

Liberia

Thu 1/22

3:05 pm-8:53 am

1 stop17h 48m

$331

Kansas CityLiberia

MCI - LIR

MCILIR

Kansas City

Sun 1/18

5:50 am-1:50 pm

1 stop8h 00m

Liberia

Fri 1/23

3:05 pm-11:51 pm

1 stop8h 46m

$339

Kansas CityLiberia

MCI - LIR

MCILIR

Kansas City

Mon 1/19

5:50 am-12:50 pm

1 stop7h 00m

Liberia

Fri 1/23

2:05 pm-10:02 pm

1 stop7h 57m

$339

Kansas CityLiberia

MCI - LIR

MCILIR

Kansas City

Tue 1/20

7:00 am-1:50 pm

1 stop6h 50m

Liberia

Thu 1/22

3:05 pm-11:51 pm

1 stop8h 46m

$340

Kansas CityLiberia

MCI - LIR

MCILIR

Kansas City

Tue 1/20

7:00 am-1:50 pm

1 stop6h 50m

Liberia

Fri 1/23

3:05 pm-11:51 pm

1 stop8h 46m

$347

Kansas CityLiberia

MCI - LIR

MCILIR

Kansas City

Sun 1/18

5:50 am-1:50 pm

1 stop8h 00m

Liberia

Thu 1/22

2:45 pm-11:27 pm

1 stop8h 42m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/23

Showing 1-10 of 52 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 June is currently the most expensive (average of $408). 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 November 24, 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 6h 40m. 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?

    $158 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 United Airlines and Delta, with prices starting from $192 and $192, 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 June is currently the most expensive (average of $408). 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 November 24, 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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