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Cheap flights from Costa Rica to St. Louis from $208

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 1/26. 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 - 11:59 pm
SJO
-
STL
11h 24m
1 stop
Multiple Airlines Logo
3:49 pm - 11:40 am
STL
-
SJO
19h 51m
1 stop
$279Multiple Airlines
Thu, Feb 12 - Mon, Feb 16
Multiple Airlines Logo
7:22 am - 11:59 pm
SJO
-
STL
16h 37m
1 stop
Multiple Airlines Logo
3:49 pm - 3:20 pm
STL
-
SJO
23h 31m
1 stop
$297Multiple Airlines
Thu, Feb 12 - Mon, Feb 16
United Airlines Logo
2:05 pm - 10:59 pm
SJO
-
STL
8h 54m
1 stop
United Airlines Logo
7:41 am - 1:15 pm
STL
-
SJO
29h 34m
2 stops
$304United Airlines
Thu, Feb 12 - Mon, Feb 16
United Airlines Logo
2:05 pm - 10:58 pm
SJO
-
STL
8h 53m
1 stop
United Airlines Logo
4:35 pm - 8:39 pm
STL
-
SJO
28h 04m
1 stop
$327United Airlines
Fri, Jan 23 - Mon, Jan 26
Multiple Airlines Logo
12:35 pm - 11:59 pm
SJO
-
STL
11h 24m
1 stop
Multiple Airlines Logo
8:22 pm - 11:40 am
STL
-
SJO
39h 18m
2 stops
$338Multiple Airlines
Thu, Feb 12 - Mon, Feb 16
United Airlines Logo
6:30 am - 7:27 pm
SJO
-
STL
36h 57m
2 stops
United Airlines Logo
4:35 pm - 8:39 pm
STL
-
SJO
28h 04m
1 stop
$339United Airlines
Fri, Jan 23 - Mon, Jan 26
United Airlines Logo
8:45 am - 9:22 am
SJO
-
STL
24h 37m
1 stop
United Airlines Logo
6:00 am - 8:39 pm
STL
-
SJO
14h 39m
1 stop
$347United Airlines
Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
6:30 am - 3:52 pm
SJO
-
STL
9h 22m
1 stop
United Airlines Logo
6:00 am - 8:39 pm
STL
-
SJO
14h 39m
1 stop
$356United Airlines
Fri, Jan 23 - Mon, Jan 26
United Airlines Logo
12:35 pm - 10:14 pm
SJO
-
STL
9h 39m
1 stop
United Airlines Logo
6:00 am - 1:15 pm
STL
-
SJO
7h 15m
1 stop
$358United Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
6:30 am - 12:29 pm
SJO
-
STL
29h 59m
2 stops
United Airlines Logo
6:00 am - 8:39 pm
STL
-
SJO
14h 39m
1 stop
$360United Airlines
Fri, Jan 23 - Mon, Jan 26

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 12
SJO2:05 pmSan José Juan Santamaria Intl
8h 54m
1 stop
STL10:59 pmLambert-St Louis
Feb 16
STL7:41 amLambert-St Louis
29h 34m
2 stops
SJO1:15 pmSan José Juan Santamaria Intl
$304
United Airlines
Jan 23
SJO2:05 pmSan José Juan Santamaria Intl
8h 53m
1 stop
STL10:58 pmLambert-St Louis
Jan 26
STL4:35 pmLambert-St Louis
28h 04m
1 stop
SJO8:39 pmSan José Juan Santamaria Intl
$327
United Airlines
Jan 23
SJO6:30 amSan José Juan Santamaria Intl
36h 57m
2 stops
STL7:27 pmLambert-St Louis
Jan 26
STL4:35 pmLambert-St Louis
28h 04m
1 stop
SJO8:39 pmSan José Juan Santamaria Intl
$339

American Airlines flights from Costa Rica to St. Louis

Our best American Airlines deals on Costa Rica to St. Louis flight tickets
American Airlines
Mar 13
SJO6:00 amSan José Juan Santamaria Intl
11h 00m
1 stop
STL6:00 pmLambert-St Louis
Mar 17
STL8:00 amLambert-St Louis
12h 33m
2 stops
SJO7:33 pmSan José Juan Santamaria Intl
$387
American Airlines
Feb 12
SJO3:59 pmSan José Juan Santamaria Intl
18h 33m
1 stop
STL10:32 amLambert-St Louis
Feb 16
STL6:00 amLambert-St Louis
14h 33m
2 stops
SJO8:33 pmSan José Juan Santamaria Intl
$400
American Airlines
Feb 12
SJO8:00 amSan José Juan Santamaria Intl
13h 12m
2 stops
STL9:12 pmLambert-St Louis
Feb 16
STL6:00 amLambert-St Louis
14h 33m
2 stops
SJO8:33 pmSan José Juan Santamaria Intl
$432

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 12, 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

Thu 2/12

12:35 pm-11:59 pm

1 stop11h 24m

Lambert-St Louis

Mon 2/16

3:49 pm-11:40 am

1 stop19h 51m

$279

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 2/12

7:22 am-11:59 pm

1 stop16h 37m

Lambert-St Louis

Mon 2/16

3:49 pm-3:20 pm

1 stop23h 31m

$297

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 2/12

2:05 pm-10:59 pm

1 stop8h 54m

Lambert-St Louis

Mon 2/16

7:41 am-1:15 pm

2 stops29h 34m

$304

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 1/23

2:05 pm-10:58 pm

1 stop8h 53m

Lambert-St Louis

Mon 1/26

4:35 pm-8:39 pm

1 stop28h 04m

$327

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 2/12

12:35 pm-11:59 pm

1 stop11h 24m

Lambert-St Louis

Mon 2/16

8:22 pm-11:40 am

2 stops39h 18m

$338

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 1/23

6:30 am-7:27 pm

2 stops36h 57m

Lambert-St Louis

Mon 1/26

4:35 pm-8:39 pm

1 stop28h 04m

$339

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 1/22

8:45 am-9:22 am

1 stop24h 37m

Lambert-St Louis

Mon 1/26

6:00 am-8:39 pm

1 stop14h 39m

$347

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 1/23

6:30 am-3:52 pm

1 stop9h 22m

Lambert-St Louis

Mon 1/26

6:00 am-8:39 pm

1 stop14h 39m

$356

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 2/26

12:35 pm-10:14 pm

1 stop9h 39m

Lambert-St Louis

Mon 3/2

6:00 am-1:15 pm

1 stop7h 15m

$358

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 1/23

6:30 am-12:29 pm

2 stops29h 59m

Lambert-St Louis

Mon 1/26

6:00 am-8:39 pm

1 stop14h 39m

$360

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 22m

Direct flights

None
The fastest flight from Costa Rica to St. Louis takes 9h 22m
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
11,114 reviews
Search American Airlines flights
United AirlinesPriceFrom $328Free CancellationRating
7.4
9,149 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
Florissant
Maryland Heights
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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