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Cheap flights from Missouri to Costa Rica from $125

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Costa Rica departing on 9/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Missouri to Costa Rica

Cheap round-trip flights

Spirit Airlines Logo
10:57 am - 11:30 amSTL-SJO
25h 33m1 stop
Spirit Airlines Logo
1:19 pm - 11:01 amSJO-STL
21h 42m1 stop
$285Spirit Airlines
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Thu, Oct 30 - Wed, Nov 5
Logo
4:52 pm - 11:30 amSTL-SJO
19h 38m2 stops
Logo
1:19 pm - 11:01 amSJO-STL
21h 42m1 stop
$287
Find Deal
Fri, Oct 31 - Wed, Nov 5
Delta Logo
6:01 am - 12:00 pmSTL-LIR
6h 59m1 stop
Delta Logo
1:25 pm - 11:24 pmLIR-STL
8h 59m1 stop
$295Delta
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Mon, Sep 29 - Fri, Oct 3
American Airlines Logo
4:55 pm - 11:49 amSTL-LIR
19h 54m2 stops
American Airlines Logo
2:02 pm - 9:26 amLIR-STL
18h 24m2 stops
$299American Airlines
Find Deal
Mon, Sep 29 - Fri, Oct 3
United Airlines Logo
6:15 am - 12:10 pmSTL-LIR
6h 55m1 stop
United Airlines Logo
1:20 pm - 10:08 pmLIR-STL
7h 48m1 stop
$315United Airlines
Find Deal
Tue, Sep 16 - Sat, Sep 20
American Airlines Logo
6:00 pm - 11:49 amSTL-LIR
18h 49m2 stops
American Airlines Logo
2:02 pm - 10:50 pmLIR-STL
7h 48m1 stop
$319American Airlines
Find Deal
Mon, Sep 15 - Mon, Sep 22
Delta Logo
6:00 am - 1:06 pmSTL-SJO
7h 06m1 stop
Delta Logo
7:00 am - 6:35 pmSJO-STL
11h 35m1 stop
$340Delta
Find Deal
Tue, Nov 18 - Tue, Nov 25
United Airlines Logo
6:15 am - 7:37 pmSTL-SJO
14h 22m1 stop
United Airlines Logo
7:55 am - 10:00 pmSJO-STL
13h 05m1 stop
$360United Airlines
Find Deal
Thu, Oct 9 - Tue, Oct 14
Southwest Logo
11:10 am - 8:30 pmMCI-SJO
9h 20m2 stops
Southwest Logo
9:00 am - 6:55 pmSJO-MCI
9h 55m2 stops
$411Southwest
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Tue, Nov 11 - Tue, Nov 25
Southwest Logo
5:05 am - 12:45 pmSTL-SJO
8h 40m1 stop
Southwest Logo
8:50 am - 8:00 pmSJO-STL
10h 10m1 stop
$457Southwest
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Mon, Sep 1 - Wed, Sep 3

Delta flights from Missouri to Costa Rica

Our best Delta deals on Missouri to Costa Rica flight tickets
Delta
Sep 29
STL6:01 amLambert-St Louis
6h 59m
1 stop
LIR12:00 pmLiberia
Oct 3
LIR1:25 pmLiberia
8h 59m
1 stop
STL11:24 pmLambert-St Louis
$295
Find similar
Delta
Nov 18
STL6:00 amLambert-St Louis
7h 06m
1 stop
SJO1:06 pmSan José Juan Santamaria Intl
Nov 25
SJO7:00 amSan José Juan Santamaria Intl
11h 35m
1 stop
STL6:35 pmLambert-St Louis
$340
Find similar
Delta
Nov 16
MCI3:12 pmKansas City
6h 55m
1 stop
SJO10:07 pmSan José Juan Santamaria Intl
Nov 22
SJO2:31 pmSan José Juan Santamaria Intl
9h 25m
1 stop
MCI11:56 pmKansas City
$386
Find similar

American Airlines flights from Missouri to Costa Rica

Our best American Airlines deals on Missouri to Costa Rica flight tickets
American Airlines
Sep 29
STL5:28 amLambert-St Louis
7h 21m
1 stop
LIR11:49 amLiberia
Oct 3
LIR12:49 pmLiberia
19h 25m
2 stops
STL9:14 amLambert-St Louis
$299
Find similar
American Airlines
Sep 15
STL6:00 pmLambert-St Louis
18h 49m
2 stops
LIR11:49 amLiberia
Sep 22
LIR2:02 pmLiberia
7h 48m
1 stop
STL10:50 pmLambert-St Louis
$319
Find similar
American Airlines
Sep 13
STL8:50 amLambert-St Louis
29h 11m
1 stop
LIR1:01 pmLiberia
Sep 20
LIR12:49 pmLiberia
10h 10m
1 stop
STL11:59 pmLambert-St Louis
$321
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated August 29, 2025.
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

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Thu 10/30

10:57 am-11:30 am

1 stop25h 33m

San José Juan Santamaria Intl

Wed 11/5

1:19 pm-11:01 am

1 stop21h 42m

$285

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Fri 10/31

4:52 pm-11:30 am

2 stops19h 38m

San José Juan Santamaria Intl

Wed 11/5

1:19 pm-11:01 am

1 stop21h 42m

$287

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Mon 9/29

6:01 am-12:00 pm

1 stop6h 59m

Liberia

Fri 10/3

1:25 pm-11:24 pm

1 stop8h 59m

$295

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Mon 9/29

4:55 pm-11:49 am

2 stops19h 54m

Liberia

Fri 10/3

2:02 pm-9:26 am

2 stops18h 24m

$299

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Tue 9/16

6:15 am-12:10 pm

1 stop6h 55m

Liberia

Sat 9/20

1:20 pm-10:08 pm

1 stop7h 48m

$315

St. LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Mon 9/15

6:00 pm-11:49 am

2 stops18h 49m

Liberia

Mon 9/22

2:02 pm-10:50 pm

1 stop7h 48m

$319

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Tue 11/18

6:00 am-1:06 pm

1 stop7h 06m

San José Juan Santamaria Intl

Tue 11/25

7:00 am-6:35 pm

1 stop11h 35m

$340

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Thu 10/9

6:15 am-7:37 pm

1 stop14h 22m

San José Juan Santamaria Intl

Tue 10/14

7:55 am-10:00 pm

1 stop13h 05m

$360

Kansas CitySan José

MCI - SJO

MCISJO

Kansas City

Tue 11/11

11:10 am-8:30 pm

2 stops9h 20m

San José Juan Santamaria Intl

Tue 11/25

9:00 am-6:55 pm

2 stops9h 55m

$411

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Mon 9/1

5:05 am-12:45 pm

1 stop8h 40m

San José Juan Santamaria Intl

Wed 9/3

8:50 am-8:00 pm

1 stop10h 10m

$457

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Costa Rica from

How to get the cheapest flight ticket from Missouri to Costa Rica

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Costa Rica?

The cheapest month to fly to Costa Rica from Missouri is in September. Flight prices, which tend to average around $457, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in September, then November is your next best option. Flight prices from Missouri to Costa Rica during November average around $502.

What is the cheapest day to depart on your flight to Costa Rica?

According to our data, Tuesday is the cheapest day to fly to Costa Rica from Missouri. The lowest ticket price found for a Tuesday departure recently was $519. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $687. These prices are subject to change though, so be sure to set up a Price Alert for flights to Costa Rica.

What is the cheapest time of day to depart on your flight to Costa Rica?

In the evening is the cheapest time of day to fly from Missouri to Costa Rica when you can find flight prices for as low as $427. Flying to Costa Rica in the evening is an ideal time because this is during off-peak travel hours. Flights to Costa Rica are more costly at noon, with an average ticket price of $604. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Costa Rica?

You are more likely to see cheaper flights to Costa Rica from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Costa Rica for around $600 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Costa Rica from Missouri for as low as $488 on momondo.

Cheap Missouri to Costa Rica flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Costa Rica

Direct flights

None
There are no direct flights from Missouri to Costa Rica. There are no popular flight routes from Missouri to Costa Rica.
Search flight deals

  • When did momondo last update prices for flights from Missouri to Costa Rica?

    Prices for flights from Missouri to Costa Rica are refreshed on a daily basis.

  • How many operators does momondo search for flights from Missouri to Costa Rica?

  • How old do you have to be to fly from Missouri to Costa Rica?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Costa Rica.

  • What documentation or ID do you need to fly to Costa Rica?

    The travel and health documents you'll need for your trip to Costa Rica may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Costa Rica. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Missouri to Costa Rica

Compare and see reviews for airlines that fly from Missouri to Costa Rica with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $257Free CancellationRating
7.9
7,979 reviews
Search Delta flights
Spirit AirlinesPriceFrom $263Free CancellationRating
6.3
8,021 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $354Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $366Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
United AirlinesPriceFrom $378Free CancellationRating
7.4
8,941 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Costa Rica?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Missouri to Costa Rica for you.

Can I find flights from Missouri to Costa Rica with flexible booking policies on momondo?

Flights from Missouri to Costa Rica with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Missouri to Costa Rica?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Missouri to Costa Rica.

I’m not ready to book a flight from Missouri to Costa Rica right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Costa Rica, momondo offers a useful price alert feature which will track prices for flights to Costa Rica from Missouri and alert you when they change.

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