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Cheap flights from Costa Rica to St. Louis from $186

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 4/11. 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
1 adult, Economy, 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.
Frontier Logo
9:35 am - 12:21 am
SJO
-
STL
13h 46m
1 stop
Frontier Logo
3:33 pm - 8:19 am
STL
-
SJO
17h 46m
2 stops
$344Frontier
ש', מאי 23 - ה', מאי 28
United Airlines Logo
7:55 am - 10:30 pm
SJO
-
STL
13h 35m
1 stop
United Airlines Logo
8:35 am - 10:39 pm
STL
-
SJO
15h 04m
1 stop
$413United Airlines
ה', מאי 14 - ד', יוני 3
United Airlines Logo
7:55 am - 10:30 pm
SJO
-
STL
13h 35m
1 stop
United Airlines Logo
9:23 am - 10:11 am
STL
-
SJO
25h 48m
2 stops
$426United Airlines
ד', מאי 13 - ג', יוני 2
United Airlines Logo
7:55 am - 10:30 pm
SJO
-
STL
13h 35m
1 stop
United Airlines Logo
8:35 am - 10:11 am
STL
-
SJO
26h 36m
1 stop
$439United Airlines
ד', מאי 13 - ג', יוני 2
American Airlines Logo
1:59 pm - 11:44 pm
SJO
-
STL
8h 45m
1 stop
American Airlines Logo
7:03 am - 10:42 pm
STL
-
SJO
16h 39m
1 stop
$449American Airlines
ב', יוני 22 - ו', יוני 26
United Airlines Logo
7:55 am - 10:30 pm
SJO
-
STL
13h 35m
1 stop
United Airlines Logo
8:35 am - 10:39 pm
STL
-
SJO
15h 04m
1 stop
$451United Airlines
ש', מאי 16 - ד', יוני 3
United Airlines Logo
7:55 am - 10:30 pm
SJO
-
STL
13h 35m
1 stop
United Airlines Logo
5:41 pm - 10:11 am
STL
-
SJO
17h 30m
2 stops
$456United Airlines
ש', מאי 16 - ד', יוני 3
United Airlines Logo
7:55 am - 10:30 pm
SJO
-
STL
13h 35m
1 stop
United Airlines Logo
7:09 pm - 12:21 pm
STL
-
SJO
18h 12m
2 stops
$459United Airlines
ד', מאי 6 - ב', מאי 11
Delta Logo
1:20 pm - 11:59 pm
SJO
-
STL
9h 39m
1 stop
Delta Logo
6:00 am - 11:52 am
STL
-
SJO
6h 52m
1 stop
$468Delta
ג', מאי 12 - ג', יוני 2
Copa Airlines Logo
1:25 pm - 10:30 pm
SJO
-
STL
8h 05m
1 stop
Copa Airlines Logo
8:35 am - 7:37 pm
STL
-
SJO
12h 02m
1 stop
$472Copa Airlines
ה', מאי 14 - ד', יוני 3

American Airlines flights from Costa Rica to St. Louis

Our best American Airlines deals on Costa Rica to St. Louis flight tickets
American Airlines
Jun 22
SJO1:59 pmSan José Juan Santamaria Intl
8h 45m
1 stop
STL11:44 pmLambert-St Louis
Jun 26
STL7:03 amLambert-St Louis
16h 39m
1 stop
SJO10:42 pmSan José Juan Santamaria Intl
$449
American Airlines
May 13
SJO12:10 pmSan José Juan Santamaria Intl
9h 14m
1 stop
STL10:24 pmLambert-St Louis
Jun 2
STL5:25 amLambert-St Louis
9h 43m
1 stop
SJO2:08 pmSan José Juan Santamaria Intl
$477
American Airlines
May 1
SJO11:35 pmSan José Juan Santamaria Intl
16h 46m
1 stop
STL5:21 pmLambert-St Louis
May 12
STL5:24 amLambert-St Louis
8h 40m
1 stop
SJO1:04 pmSan José Juan Santamaria Intl
$478

Delta flights from Costa Rica to St. Louis

Our best Delta deals on Costa Rica to St. Louis flight tickets
Delta
May 12
SJO1:20 pmSan José Juan Santamaria Intl
9h 39m
1 stop
STL11:59 pmLambert-St Louis
Jun 2
STL6:00 amLambert-St Louis
6h 52m
1 stop
SJO11:52 amSan José Juan Santamaria Intl
$468
Delta
May 5
SJO1:21 pmSan José Juan Santamaria Intl
9h 15m
1 stop
STL11:36 pmLambert-St Louis
May 7
STL6:00 amLambert-St Louis
6h 52m
1 stop
SJO11:52 amSan José Juan Santamaria Intl
$497
Delta
Sep 23
SJO1:25 pmSan José Juan Santamaria Intl
9h 12m
1 stop
STL11:37 pmLambert-St Louis
Sep 27
STL6:00 amLambert-St Louis
6h 54m
1 stop
SJO11:54 amSan José Juan Santamaria Intl
$539

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 אפריל 6, 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

Cheapest round-trip

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

ש' 5/23

9:35 am-12:21 am

1 stop13h 46m

Lambert-St Louis

ה' 5/28

3:33 pm-8:19 am

2 stops17h 46m

$344

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

ה' 5/14

7:55 am-10:30 pm

1 stop13h 35m

Lambert-St Louis

ד' 6/3

8:35 am-10:39 pm

1 stop15h 04m

$413

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

ד' 5/13

7:55 am-10:30 pm

1 stop13h 35m

Lambert-St Louis

ג' 6/2

9:23 am-10:11 am

2 stops25h 48m

$426

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

ד' 5/13

7:55 am-10:30 pm

1 stop13h 35m

Lambert-St Louis

ג' 6/2

8:35 am-10:11 am

1 stop26h 36m

$439

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

ב' 6/22

1:59 pm-11:44 pm

1 stop8h 45m

Lambert-St Louis

ו' 6/26

7:03 am-10:42 pm

1 stop16h 39m

$449

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

ש' 5/16

7:55 am-10:30 pm

1 stop13h 35m

Lambert-St Louis

ד' 6/3

8:35 am-10:39 pm

1 stop15h 04m

$451

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

ש' 5/16

7:55 am-10:30 pm

1 stop13h 35m

Lambert-St Louis

ד' 6/3

5:41 pm-10:11 am

2 stops17h 30m

$456

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

ד' 5/6

7:55 am-10:30 pm

1 stop13h 35m

Lambert-St Louis

ב' 5/11

7:09 pm-12:21 pm

2 stops18h 12m

$459
Quickest round-trip

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

ג' 5/12

1:20 pm-11:59 pm

1 stop9h 39m

Lambert-St Louis

ג' 6/2

6:00 am-11:52 am

1 stop6h 52m

$468

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

ה' 5/14

1:25 pm-10:30 pm

1 stop8h 05m

Lambert-St Louis

ד' 6/3

8:35 am-7:37 pm

1 stop12h 02m

$472

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 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, October 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 $336. The month of September is another great option to travel to St. Louis, with average flight prices from Costa Rica averaging around $367.

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

You could potentially save up to 15% 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 51m

Direct flights

None
The fastest flight from Costa Rica to St. Louis takes 9h 51m
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

Frequently asked questions about flying from Costa Rica to St. Louis

  • 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
7.1
11,558 reviews
Search American Airlines flights
United AirlinesPriceFrom $306Free CancellationRating
7.4
9,546 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
O'Fallon
Florissant
St. Peters
Collinsville
Alton
Wentzville
Fenton
Farmington
Clayton
Festus
Eureka
Edwardsville
Litchfield
Shrewsbury
Grafton

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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