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Cheap flights from Costa Rica to St. Louis from $218

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 11/25. 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

Discover deals from 900+ travel sites with momondo.

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.
JetBlue Logo
7:00 am - 4:32 pmSJO  San José Juan Santamaria Intl-STL Lambert-St Louis
9h 32m1 stop Atlanta Hartsfield-Jackson
JetBlue Logo
10:00 am - 10:15 pmSTL  Lambert-St Louis-SJO San José Juan Santamaria Intl
12h 15m1 stop Atlanta Hartsfield-Jackson
$377JetBlue
Wed, Nov 25 - Mon, Nov 30
JetBlue Logo
7:00 am - 4:32 pmSJO  San José Juan Santamaria Intl-STL Lambert-St Louis
9h 32m1 stop Atlanta Hartsfield-Jackson
JetBlue Logo
10:00 am - 10:15 pmSTL  Lambert-St Louis-SJO San José Juan Santamaria Intl
12h 15m1 stop Atlanta Hartsfield-Jackson
$408JetBlue
Wed, Nov 25 - Mon, Nov 30
American Airlines Logo
1:00 pm - 11:43 pmSJO  San José Juan Santamaria Intl-STL Lambert-St Louis
9h 43m1 stop Dallas/Fort Worth
American Airlines Logo
5:00 am - 12:59 pmSTL  Lambert-St Louis-SJO San José Juan Santamaria Intl
8h 59m1 stop Miami
$470American Airlines
Fri, Sep 25 - Wed, Sep 30
United Airlines Logo
7:55 am - 10:30 pmSJO  San José Juan Santamaria Intl-STL Lambert-St Louis
13h 35m1 stop Houston George Bush Intcntl
United Airlines Logo
8:30 am - 7:39 pmSTL  Lambert-St Louis-SJO San José Juan Santamaria Intl
12h 09m1 stop Houston George Bush Intcntl
$470United Airlines
Fri, Oct 23 - Mon, Oct 26
American Airlines Logo
6:00 am - 9:59 pmSJO  San José Juan Santamaria Intl-STL Lambert-St Louis
14h 59m1 stop Miami
American Airlines Logo
7:10 pm - 12:00 pmSTL  Lambert-St Louis-SJO San José Juan Santamaria Intl
17h 50m2 stops Dallas/Fort Worth Miami
$475American Airlines
Thu, Oct 22 - Sat, Oct 24
United Airlines Logo
7:55 am - 10:59 pmSJO  San José Juan Santamaria Intl-STL Lambert-St Louis
14h 04m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
United Airlines Logo
3:15 pm - 11:42 amSTL  Lambert-St Louis-SJO San José Juan Santamaria Intl
21h 27m2 stops Chicago O'Hare Intl Newark
$475United Airlines
Fri, Oct 23 - Mon, Oct 26
United Airlines Logo
1:25 pm - 12:14 pmSJO  San José Juan Santamaria Intl-STL Lambert-St Louis
21h 49m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
United Airlines Logo
6:15 am - 12:22 pmSTL  Lambert-St Louis-SJO San José Juan Santamaria Intl
7h 07m1 stop Houston George Bush Intcntl
$475United Airlines
Fri, Oct 23 - Mon, Oct 26
American Airlines Logo
6:00 am - 9:46 pmSJO  San José Juan Santamaria Intl-STL Lambert-St Louis
14h 46m2 stops Miami New York LaGuardia
American Airlines Logo
7:10 pm - 12:00 pmSTL  Lambert-St Louis-SJO San José Juan Santamaria Intl
17h 50m2 stops Dallas/Fort Worth Miami
$475American Airlines
Thu, Oct 22 - Sat, Oct 24
Multiple Airlines Logo
8:55 am - 9:40 amSJO  San José Juan Santamaria Intl-STL Lambert-St Louis
23h 45m2 stops Tampa Atlanta Hartsfield-Jackson
Multiple Airlines Logo
8:34 pm - 3:11 pmSTL  Lambert-St Louis-SJO San José Juan Santamaria Intl
19h 37m1 stop Orlando
$502Multiple Airlines
Wed, Oct 21 - Thu, Oct 22
Southwest Logo
9:00 am - 10:00 pmSJO  San José Juan Santamaria Intl-STL Lambert-St Louis
12h 00m2 stops Orlando Chicago Midway
Southwest Logo
8:30 am - 7:40 pmSTL  Lambert-St Louis-SJO San José Juan Santamaria Intl
12h 10m2 stops Dallas Love Field Houston Hobby
$542Southwest
Wed, Oct 21 - Thu, Oct 22

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JetBlue flights from Costa Rica to St. Louis

Our best JetBlue deals on Costa Rica to St. Louis flight tickets
JetBlue
Nov 25
SJO7:00 amSan José Juan Santamaria Intl
9h 32m
1 stop
STL4:32 pmLambert-St Louis
Nov 30
STL10:00 amLambert-St Louis
12h 15m
1 stop
SJO10:15 pmSan José Juan Santamaria Intl
$377
JetBlue
Nov 25
SJO7:00 amSan José Juan Santamaria Intl
9h 32m
1 stop
STL4:32 pmLambert-St Louis
Nov 30
STL10:00 amLambert-St Louis
12h 15m
1 stop
SJO10:15 pmSan José Juan Santamaria Intl
$408
JetBlue
Dec 24
SJO7:00 amSan José Juan Santamaria Intl
16h 39m
1 stop
STL11:39 pmLambert-St Louis
Dec 31
STL1:30 pmLambert-St Louis
8h 45m
1 stop
SJO10:15 pmSan José Juan Santamaria Intl
$577

Southwest flights from Costa Rica to St. Louis

Our best Southwest deals on Costa Rica to St. Louis flight tickets
Southwest
Sep 24
SJO9:00 amSan José Juan Santamaria Intl
11h 45m
2 stops
STL9:45 pmLambert-St Louis
Oct 1
STL8:30 amLambert-St Louis
12h 10m
2 stops
SJO7:40 pmSan José Juan Santamaria Intl
$542
Southwest
Aug 20
SJO9:00 amSan José Juan Santamaria Intl
11h 40m
2 stops
STL9:40 pmLambert-St Louis
Aug 23
STL8:20 amLambert-St Louis
11h 20m
2 stops
SJO6:40 pmSan José Juan Santamaria Intl
$944
Southwest
Aug 20
SJO9:00 amSan José Juan Santamaria Intl
12h 25m
1 stop
STL10:25 pmLambert-St Louis
Aug 23
STL6:00 amLambert-St Louis
13h 40m
2 stops
SJO6:40 pmSan José Juan Santamaria Intl
$986

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 August 13, 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 San José Juan Santamaria Intl - STL Lambert-St Louis

SJOSTL

San José Juan Santamaria Intl

Wed 11/25

7:00 am-4:32 pm

1 stop9h 32m

Lambert-St Louis

Mon 11/30

10:00 am-10:15 pm

1 stop12h 15m

$377

San JoséSt. Louis

SJO San José Juan Santamaria Intl - STL Lambert-St Louis

SJOSTL

San José Juan Santamaria Intl

Wed 11/25

7:00 am-4:32 pm

1 stop9h 32m

Lambert-St Louis

Mon 11/30

10:00 am-10:15 pm

1 stop12h 15m

$408
Quickest round-trip

San JoséSt. Louis

SJO San José Juan Santamaria Intl - STL Lambert-St Louis

SJOSTL

San José Juan Santamaria Intl

Fri 9/25

1:00 pm-11:43 pm

1 stop9h 43m

Lambert-St Louis

Wed 9/30

5:00 am-12:59 pm

1 stop8h 59m

$470

San JoséSt. Louis

SJO San José Juan Santamaria Intl - STL Lambert-St Louis

SJOSTL

San José Juan Santamaria Intl

Fri 10/23

7:55 am-10:30 pm

1 stop13h 35m

Lambert-St Louis

Mon 10/26

8:30 am-7:39 pm

1 stop12h 09m

$470

San JoséSt. Louis

SJO San José Juan Santamaria Intl - STL Lambert-St Louis

SJOSTL

San José Juan Santamaria Intl

Thu 10/22

6:00 am-9:59 pm

1 stop14h 59m

Lambert-St Louis

Sat 10/24

7:10 pm-12:00 pm

2 stops17h 50m

$475

San JoséSt. Louis

SJO San José Juan Santamaria Intl - STL Lambert-St Louis

SJOSTL

San José Juan Santamaria Intl

Fri 10/23

7:55 am-10:59 pm

2 stops14h 04m

Lambert-St Louis

Mon 10/26

3:15 pm-11:42 am

2 stops21h 27m

$475

San JoséSt. Louis

SJO San José Juan Santamaria Intl - STL Lambert-St Louis

SJOSTL

San José Juan Santamaria Intl

Fri 10/23

1:25 pm-12:14 pm

2 stops21h 49m

Lambert-St Louis

Mon 10/26

6:15 am-12:22 pm

1 stop7h 07m

$475

San JoséSt. Louis

SJO San José Juan Santamaria Intl - STL Lambert-St Louis

SJOSTL

San José Juan Santamaria Intl

Thu 10/22

6:00 am-9:46 pm

2 stops14h 46m

Lambert-St Louis

Sat 10/24

7:10 pm-12:00 pm

2 stops17h 50m

$475

San JoséSt. Louis

SJO San José Juan Santamaria Intl - STL Lambert-St Louis

SJOSTL

San José Juan Santamaria Intl

Wed 10/21

8:55 am-9:40 am

2 stops23h 45m

Lambert-St Louis

Thu 10/22

8:34 pm-3:11 pm

1 stop19h 37m

$502

San JoséSt. Louis

SJO San José Juan Santamaria Intl - STL Lambert-St Louis

SJOSTL

San José Juan Santamaria Intl

Wed 10/21

9:00 am-10:00 pm

2 stops12h 00m

Lambert-St Louis

Thu 10/22

8:30 am-7:40 pm

2 stops12h 10m

$542

Flights are sorted by cheapest round-trip flights 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 $437. The month of November is another great option to travel to St. Louis, with average flight prices from Costa Rica averaging around $469.

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

You could potentially save up to 51% 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 05m

Direct flights

None
The fastest flight from Costa Rica to St. Louis takes 9h 05m
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 $379Free CancellationRating
7.1
11,923 reviews
Search American Airlines flights
United AirlinesPriceFrom $400Free CancellationRating
7.4
10,111 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
Fairview Heights
Hermann
St. Peters
Maryland Heights
Collinsville
Florissant
Alton
O'Fallon
Farmington
Clayton
Fenton
Festus
Wentzville
Eureka
Edwardsville
Litchfield
Grafton
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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