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Cheap flights from Costa Rica to St. Louis from $153

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Costa Rica to St. Louis departing on 2/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Costa Rica to St. Louis

Recent round-trip flight deals from Costa Rica to St. Louis

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:35 pm - 10:27 pm
SJO
-
STL
9h 52m
1 stop
Multiple Airlines Logo
3:49 pm - 11:40 am
STL
-
SJO
19h 51m
1 stop
$314Multiple Airlines
Tue, Feb 24 - Wed, Mar 4
Multiple Airlines Logo
12:35 pm - 11:59 pm
SJO
-
STL
11h 24m
1 stop
Multiple Airlines Logo
3:49 pm - 11:40 am
STL
-
SJO
19h 51m
1 stop
$321Multiple Airlines
Thu, Feb 19 - Wed, Feb 25
Multiple Airlines Logo
12:35 pm - 10:27 pm
SJO
-
STL
9h 52m
1 stop
Multiple Airlines Logo
8:17 pm - 3:30 pm
STL
-
SJO
19h 13m
2 stops
$344Multiple Airlines
Tue, Feb 24 - Wed, Mar 4
Multiple Airlines Logo
12:35 pm - 11:59 pm
SJO
-
STL
11h 24m
1 stop
Multiple Airlines Logo
8:17 pm - 3:30 pm
STL
-
SJO
43h 13m
2 stops
$345Multiple Airlines
Thu, Feb 19 - Wed, Feb 25
American Airlines Logo
11:24 am - 11:56 pm
SJO
-
STL
12h 32m
1 stop
American Airlines Logo
6:00 am - 8:12 pm
STL
-
SJO
14h 12m
1 stop
$348American Airlines
Thu, Feb 12 - Mon, Feb 16
Multiple Airlines Logo
12:35 pm - 10:27 pm
SJO
-
STL
9h 52m
1 stop
Multiple Airlines Logo
3:49 pm - 11:40 am
STL
-
SJO
19h 51m
1 stop
$349Multiple Airlines
Wed, Feb 18 - Wed, Feb 25
United Airlines Logo
2:20 pm - 9:23 am
SJO
-
STL
19h 03m
1 stop
United Airlines Logo
6:00 am - 8:39 pm
STL
-
SJO
14h 39m
1 stop
$357United Airlines
Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
1:31 pm - 11:59 pm
SJO
-
STL
34h 28m
2 stops
Multiple Airlines Logo
3:49 pm - 11:40 am
STL
-
SJO
19h 51m
1 stop
$359Multiple Airlines
Fri, Feb 20 - Wed, Feb 25
Multiple Airlines Logo
12:35 pm - 11:59 pm
SJO
-
STL
11h 24m
1 stop
Multiple Airlines Logo
8:22 pm - 12:22 pm
STL
-
SJO
16h 00m
2 stops
$360Multiple Airlines
Thu, Feb 19 - Fri, Feb 27
American Airlines Logo
3:20 pm - 8:55 am
SJO
-
STL
17h 35m
1 stop
American Airlines Logo
5:14 am - 12:31 pm
STL
-
SJO
7h 17m
1 stop
$362American Airlines
Thu, Feb 26 - Mon, Mar 2

United Airlines flights from Costa Rica to St. Louis

Our best United Airlines deals on Costa Rica to St. Louis flight tickets
United Airlines
Feb 19
SJO2:20 pmSan José Juan Santamaria Intl
19h 03m
1 stop
STL9:23 amLambert-St Louis
Feb 26
STL6:00 amLambert-St Louis
14h 39m
1 stop
SJO8:39 pmSan José Juan Santamaria Intl
$357
United Airlines
Feb 19
SJO2:20 pmSan José Juan Santamaria Intl
19h 03m
1 stop
STL9:23 amLambert-St Louis
Feb 26
STL6:25 amLambert-St Louis
14h 14m
2 stops
SJO8:39 pmSan José Juan Santamaria Intl
$369
United Airlines
Feb 19
SJO2:20 pmSan José Juan Santamaria Intl
30h 45m
2 stops
STL9:05 pmLambert-St Louis
Feb 26
STL6:25 amLambert-St Louis
14h 14m
2 stops
SJO8:39 pmSan José Juan Santamaria Intl
$391

American Airlines flights from Costa Rica to St. Louis

Our best American Airlines deals on Costa Rica to St. Louis flight tickets
American Airlines
Feb 12
SJO11:24 amSan José Juan Santamaria Intl
12h 32m
1 stop
STL11:56 pmLambert-St Louis
Feb 16
STL6:00 amLambert-St Louis
14h 12m
1 stop
SJO8:12 pmSan José Juan Santamaria Intl
$348
American Airlines
Feb 26
SJO3:20 pmSan José Juan Santamaria Intl
17h 35m
1 stop
STL8:55 amLambert-St Louis
Mar 2
STL5:14 amLambert-St Louis
7h 17m
1 stop
SJO12:31 pmSan José Juan Santamaria Intl
$362
American Airlines
Feb 25
SJO12:35 amSan José Juan Santamaria Intl
12h 08m
2 stops
STL12:43 pmLambert-St Louis
Mar 2
STL5:12 amLambert-St Louis
9h 41m
1 stop
SJO2:53 pmSan José Juan Santamaria Intl
$366

momondo Fare Finder

 
Customize your flight search to find flights from Costa Rica to St. Louis 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 January 20, 2026.
Use the filters below to find and compare flights from Costa Rica to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Tue 2/24

12:35 pm-10:27 pm

1 stop9h 52m

Lambert-St Louis

Wed 3/4

3:49 pm-11:40 am

1 stop19h 51m

$314

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 2/19

12:35 pm-11:59 pm

1 stop11h 24m

Lambert-St Louis

Wed 2/25

3:49 pm-11:40 am

1 stop19h 51m

$321

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Tue 2/24

12:35 pm-10:27 pm

1 stop9h 52m

Lambert-St Louis

Wed 3/4

8:17 pm-3:30 pm

2 stops19h 13m

$344

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 2/19

12:35 pm-11:59 pm

1 stop11h 24m

Lambert-St Louis

Wed 2/25

8:17 pm-3:30 pm

2 stops43h 13m

$345

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 2/12

11:24 am-11:56 pm

1 stop12h 32m

Lambert-St Louis

Mon 2/16

6:00 am-8:12 pm

1 stop14h 12m

$348

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 2/18

12:35 pm-10:27 pm

1 stop9h 52m

Lambert-St Louis

Wed 2/25

3:49 pm-11:40 am

1 stop19h 51m

$349

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 2/19

2:20 pm-9:23 am

1 stop19h 03m

Lambert-St Louis

Thu 2/26

6:00 am-8:39 pm

1 stop14h 39m

$357

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 2/20

1:31 pm-11:59 pm

2 stops34h 28m

Lambert-St Louis

Wed 2/25

3:49 pm-11:40 am

1 stop19h 51m

$359

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 2/19

12:35 pm-11:59 pm

1 stop11h 24m

Lambert-St Louis

Fri 2/27

8:22 pm-12:22 pm

2 stops16h 00m

$360

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 2/26

3:20 pm-8:55 am

1 stop17h 35m

Lambert-St Louis

Mon 3/2

5:14 am-12:31 pm

1 stop7h 17m

$362

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Costa Rica to St. Louis

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 St. Louis?

In general, September is the cheapest month to fly from Costa Rica to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $362. The month of October is another great option to travel to St. Louis, with average flight prices from Costa Rica averaging around $362.

Can stopping save me money on Costa Rica to St. Louis flights?

You could potentially save up to 1% on your flight if you consider stops on a Costa Rica to St. Louis flight.

Cheap Costa Rica to St. Louis flight deals and tips

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

Fastest flight time

9h 52m

Direct flights

None
The fastest flight from Costa Rica to St. Louis takes 9h 52m
There are no direct flights from Costa Rica to St. Louis. There are no popular flight routes from Costa Rica to St. Louis.
Search flight deals

  • When did momondo last update prices for flights from Costa Rica to Lambert-St Louis Airport?

    Prices for flights from Costa Rica to Lambert-St Louis Airport were last updated today.

  • How many operators does momondo search for flights from Costa Rica to Lambert-St Louis Airport?

  • How old do you have to be to fly from Costa Rica to Lambert-St Louis Airport?

    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 Costa Rica to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Costa Rica to St. Louis

Compare and see reviews for airlines that fly from Costa Rica to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $274Free CancellationRating
7.2
11,164 reviews
Search American Airlines flights
United AirlinesPriceFrom $306Free CancellationRating
7.4
9,180 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
O'Fallon
Fenton
Collinsville
St. Peters
Wentzville
Alton
Farmington
Clayton
Eureka
Edwardsville
Festus
Glencoe
Litchfield
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Costa Rica to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Costa Rica to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Costa Rica to St. Louis with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Costa Rica to St. Louis flights to just show those with flexible booking policies.

How can momondo help me find flights from Costa Rica to St. Louis?

momondo provides multiple filters to help you find the best flight to St. Louis from Costa Rica. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Costa Rica to St. Louis flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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