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Costa Rica

$230+ 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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — SJO
jul. 8 — jul. 151
mié. 7/8
mié. 7/15
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 junio 8, 2026.

This CheapOair deal was found by Cheapflights users on 6/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/14:17 pm
STL
-
SJO
1 stop17h 03m
Frontier
jue. 7/99:35 am
SJO
-
STL
1 stop13h 24m
Frontier
Deal found 6/5$468
This Air Canada deal was found by Cheapflights users on 6/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/44:15 pm
STL
-
LIR
1 stop21h 40m
Air Canada
sáb. 11/142:55 pm
LIR
-
STL
1 stop24h 35m
Air Canada
Deal found 6/7$482
This United Airlines deal was found by Cheapflights users on 6/3. 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.
mar. 6/166:14 am
STL
-
LIR
1 stop9h 11m
United Airlines
mié. 6/241:20 pm
LIR
-
STL
1 stop8h 25m
United Airlines
Deal found 6/3$492
This American Airlines deal was found by Cheapflights users on 6/4. 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.
mar. 6/166:13 pm
STL
-
LIR
2 stops18h 09m
American Airlines
mié. 6/2412:22 pm
LIR
-
STL
1 stop10h 22m
American Airlines
Deal found 6/4$497
This American Airlines deal was found by Cheapflights users on 6/3. 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. 6/105:16 am
STL
-
LIR
1 stop9h 02m
American Airlines
mié. 6/1712:35 pm
LIR
-
STL
2 stops18h 56m
American Airlines
Deal found 6/3$502
This Air Canada deal was found by Cheapflights users on 6/6. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/74:15 pm
STL
-
LIR
1 stop21h 40m
Air Canada
jue. 12/102:55 pm
LIR
-
STL
1 stop24h 35m
Air Canada
Deal found 6/6$506
This Delta deal was found by Cheapflights users on 6/3. 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.
dom. 8/306:00 am
STL
-
SJO
1 stop6h 49m
Delta
jue. 9/31:14 pm
SJO
-
STL
1 stop9h 44m
Delta
Deal found 6/3$510
This American Airlines deal was found by Cheapflights users on 6/4. 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. 6/76:13 pm
STL
-
LIR
1 stop18h 22m
American Airlines
sáb. 6/132:21 pm
LIR
-
STL
1 stop17h 10m
American Airlines
Deal found 6/4$512
This Southwest deal was found by Cheapflights users on 6/3. 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.
mié. 9/238:35 am
MCI
-
SJO
1 stop11h 05m
Southwest
mié. 9/309:00 am
SJO
-
MCI
1 stop11h 05m
Southwest
Deal found 6/3$512
This Southwest deal was found by Cheapflights users on 6/2. 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.
dom. 8/306:05 am
STL
-
SJO
1 stop6h 30m
Southwest
jue. 9/39:00 am
SJO
-
STL
1 stop10h 00m
Southwest
Deal found 6/2$512
This American Airlines deal was found by Cheapflights users on 6/4. 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.
lun. 8/176:20 am
MCI
-
SJO
1 stop8h 32m
American Airlines
mié. 8/266:00 am
SJO
-
MCI
1 stop15h 45m
American Airlines
Deal found 6/4$530
This American Airlines deal was found by Cheapflights users on 6/4. 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. 8/306:00 am
STL
-
SJO
2 stops14h 53m
American Airlines
jue. 9/31:29 pm
SJO
-
STL
1 stop8h 11m
American Airlines
Deal found 6/4$535

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 junio 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$468
(CheapOair)

One-way from

$230
(Southwest)

Popular in

December

Cheapest in

January

Average price

$665
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. 17% potential increase in price ($122 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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 junio 8, 2026.
Use the filters below to find and compare flights from Missouri to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

lun. 6/22

8:35 am-2:25 pm

1 stop6h 50m

Liberia

vie. 6/26

3:27 pm-10:07 am

1 stop17h 40m

$492

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

lun. 6/15

8:35 am-2:25 pm

1 stop6h 50m

Liberia

jue. 6/18

11:10 am-10:45 pm

1 stop10h 35m

$492

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

mié. 6/10

5:16 am-1:18 pm

1 stop9h 02m

Liberia

mié. 6/17

12:35 pm-10:57 pm

1 stop9h 22m

$497

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

dom. 8/30

6:05 am-11:35 am

1 stop6h 30m

San José Juan Santamaria Intl

jue. 9/3

9:00 am-8:00 pm

1 stop10h 00m

$512

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

dom. 7/5

6:14 am-12:10 pm

1 stop6h 56m

Liberia

dom. 7/12

11:49 am-11:57 pm

1 stop11h 08m

$517

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

vie. 6/19

6:13 pm-11:22 am

2 stops18h 09m

Liberia

vie. 6/26

2:45 pm-8:34 am

2 stops16h 49m

$527

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

vie. 6/19

6:14 am-12:10 pm

1 stop6h 56m

Liberia

lun. 6/22

3:27 pm-10:07 am

1 stop17h 40m

$532

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

dom. 7/26

7:55 pm-1:15 pm

2 stops18h 20m

Liberia

vie. 7/31

3:40 pm-8:46 am

1 stop16h 06m

$544

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

mié. 9/30

10:27 am-7:37 pm

2 stops10h 10m

San José Juan Santamaria Intl

vie. 10/9

1:25 pm-10:30 pm

1 stop8h 05m

$557

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

mié. 9/30

8:35 am-6:40 pm

2 stops11h 05m

San José Juan Santamaria Intl

vie. 10/9

9:00 am-11:10 pm

2 stops13h 10m

$559

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/3

Showing 1-10 of 58 resultsSorted by cheapest first
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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, August is the cheapest month in which you can book a flight from Missouri to Costa Rica (average of $131). Flying from Missouri to Costa Rica in June is currently the most expensive (average of $396). 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.

How far ahead should I book a flight from Missouri to Costa Rica?

To ensure you get the cheapest price possible for a flight from Missouri to Costa Rica, you should look to book at least 86 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 30m. The distance from Missouri to Costa Rica is about 2022 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 United Airlines. You may also be able to find cheap deals on American Airlines and Southwest, with prices starting from $159 and $211, 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, August is the cheapest month in which you can book a flight from Missouri to Costa Rica (average of $131). Flying from Missouri to Costa Rica in June is currently the most expensive (average of $396). 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 junio 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$217Average$520FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$314Average$572FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$327Average$568FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$366Average$706FlexibilityNo cancel feeOn-time63%
GOLCheapest$644Average$1,039FlexibilityNo cancel feeOn-time74%

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