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Costa Rica

$138+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJO
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
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Cheap 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 December 8, 2025.

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.
Sat 12/63:59 pmSTL - LIR
2 stops20h 26mAmerican Airlines
Sat 12/133:20 pmLIR - STL
2 stops17h 21mAmerican Airlines
Deal found 12/6$355
This American Airlines deal was found by Cheapflights users on 12/7. 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 12/141:25 pmLIR - STL
2 stops20h 07mAmerican Airlines
Deal found 12/7$360
This American Airlines deal was found by Cheapflights users on 12/7. 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 12/148:38 amSTL - SJO
1 stop13h 50mAmerican Airlines
Tue 12/2311:32 amSJO - STL
1 stop11h 03mAmerican Airlines
Deal found 12/7$423
This Delta deal was found by Cheapflights users on 12/8. 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 12/187:05 amSTL - LIR
1 stop7h 25mDelta
Tue 12/233:05 pmLIR - STL
1 stop8h 37mDelta
Deal found 12/8$430
This American Airlines deal was found by Cheapflights users on 12/7. 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 12/156:00 amMCI - SJO
1 stop16h 28mAmerican Airlines
Wed 12/1712:34 amSJO - MCI
1 stop8h 25mAmerican Airlines
Deal found 12/7$456
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:15 amSTL - LIR
1 stop6h 55mUnited Airlines
Wed 12/178:35 amLIR - STL
1 stop13h 23mUnited Airlines
Deal found 12/6$461
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1010:15 amSTL - SJO
2 stops10h 15mSouthwest
Fri 12/129:00 amSJO - STL
1 stop9h 05mSouthwest
Deal found 12/6$477
This Delta deal was found by Cheapflights users on 12/7. 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 12/103:27 pmMCI - SJO
1 stop6h 53mDelta
Mon 12/157:00 amSJO - MCI
1 stop10h 30mDelta
Deal found 12/7$478
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.
Wed 12/1010:13 amSTL - SJO
2 stops12h 15mAmerican Airlines
Fri 12/127:00 amSJO - STL
2 stops12h 29mAmerican Airlines
Deal found 12/6$480
This American Airlines deal was found by Cheapflights users on 12/8. 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 12/115:14 amSTL - SJO
1 stop8h 52mAmerican Airlines
Sun 12/147:00 amSJO - STL
1 stop16h 59mAmerican Airlines
Deal found 12/8$481
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.
Sat 12/67:36 pmMCI - SJO
2 stops18h 26mAmerican Airlines
Sat 12/133:06 pmSJO - MCI
1 stop8h 57mAmerican Airlines
Deal found 12/6$482
This Southwest deal was found by Cheapflights users on 12/7. 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.
Wed 12/1010:30 amMCI - SJO
2 stops10h 00mSouthwest
Mon 12/152:15 pmSJO - MCI
1 stop8h 40mSouthwest
Deal found 12/7$484

Find 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 December 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$272
(Kiwi.com)

One-way from

$138
(Trip.com)

Popular in

December

Cheapest in

October

Average price

$1,154
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. 19% potential increase in price ($142 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($51 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 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 December 8, 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. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Wed 1/21

8:05 am-6:37 pm

2 stops10h 32m

Liberia

Wed 1/28

8:35 am-3:52 pm

1 stop7h 17m

$321

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Mon 3/9

6:57 pm-1:25 pm

2 stops19h 28m

Liberia

Tue 3/17

2:28 pm-12:43 pm

2 stops21h 15m

$325

Kansas CitySan José

MCI - SJO

MCISJO

Kansas City

Wed 2/18

4:24 pm-11:40 am

1 stop19h 16m

San José Juan Santamaria Intl

Wed 2/25

1:31 pm-10:30 am

1 stop20h 59m

$337

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Fri 2/6

5:50 am-2:20 pm

1 stop8h 30m

Liberia

Tue 2/10

3:13 pm-9:08 am

1 stop17h 55m

$351

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Fri 1/9

5:04 pm-12:12 pm

2 stops19h 08m

Liberia

Thu 1/15

1:21 pm-8:51 am

2 stops19h 30m

$355

Kansas CitySan José

MCI - SJO

MCISJO

Kansas City

Fri 1/9

11:06 am-12:14 pm

1 stop25h 08m

San José Juan Santamaria Intl

Mon 1/12

2:58 pm-4:09 pm

2 stops25h 11m

$358

Kansas CityLiberia

MCI - LIR

MCILIR

Kansas City

Tue 1/20

5:50 am-1:50 pm

1 stop8h 00m

Liberia

Fri 1/23

3:05 pm-11:51 pm

1 stop8h 46m

$359

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Wed 3/4

6:00 am-6:16 pm

1 stop12h 16m

San José Juan Santamaria Intl

Wed 3/11

1:05 pm-10:59 pm

1 stop8h 54m

$360

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Mon 2/2

10:07 am-6:16 pm

1 stop8h 09m

San José Juan Santamaria Intl

Fri 2/13

12:35 pm-10:14 pm

1 stop9h 39m

$360

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Mon 2/23

5:05 am-12:24 pm

1 stop7h 19m

San José Juan Santamaria Intl

Tue 3/10

12:26 pm-9:51 pm

1 stop8h 25m

$360

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

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 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 December 8, 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 05m. 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?

    $131 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 American Airlines, with prices starting from $154 and $154, 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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$517FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$273Average$351FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$319Average$622FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$334Average$611FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$366Average$646FlexibilityNo cancel feeOn-time63%

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