Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Costa Rica to St. Louis from $270

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 7/23. 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.
Multiple Airlines Logo
9:35 am - 11:59 pm
SJO
-
STL
13h 24m
1 stop
Multiple Airlines Logo
8:55 am - 10:00 pm
STL
-
SJO
14h 05m
1 stop
$514Multiple Airlines
Thu, Aug 13 - Tue, Aug 18
United Airlines Logo
7:55 am - 10:45 pm
SJO
-
STL
13h 50m
1 stop
United Airlines Logo
6:14 am - 10:39 pm
STL
-
SJO
17h 25m
1 stop
$569United Airlines
Fri, Jul 24 - Tue, Jul 28
United Airlines Logo
12:30 am - 9:26 pm
SJO
-
STL
19h 56m
2 stops
United Airlines Logo
6:14 am - 10:39 pm
STL
-
SJO
17h 25m
1 stop
$574United Airlines
Thu, Jul 23 - Tue, Jul 28
Air Canada Logo
7:10 am - 6:42 pm
SJO
-
STL
34h 32m
2 stops
Air Canada Logo
8:55 am - 8:20 pm
STL
-
SJO
12h 25m
2 stops
$577Air Canada
Sun, Aug 9 - Sun, Aug 30
Multiple Airlines Logo
7:10 am - 8:22 pm
SJO
-
STL
12h 12m
1 stop
Multiple Airlines Logo
4:09 pm - 8:30 am
STL
-
SJO
17h 21m
1 stop
$589Multiple Airlines
Tue, Jul 21 - Fri, Jul 24
Multiple Airlines Logo
9:35 am - 11:59 pm
SJO
-
STL
13h 24m
1 stop
Multiple Airlines Logo
12:10 pm - 8:20 pm
STL
-
SJO
9h 10m
1 stop
$592Multiple Airlines
Sun, Aug 9 - Sun, Aug 30
American Airlines Logo
12:34 am - 5:10 pm
SJO
-
STL
16h 36m
1 stop
American Airlines Logo
5:05 am - 12:33 pm
STL
-
SJO
7h 28m
1 stop
$601American Airlines
Wed, Dec 23 - Thu, Dec 31
American Airlines Logo
12:34 am - 5:10 pm
SJO
-
STL
16h 36m
1 stop
American Airlines Logo
5:05 am - 12:33 pm
STL
-
SJO
7h 28m
1 stop
$602American Airlines
Wed, Dec 23 - Thu, Dec 31
American Airlines Logo
12:34 am - 5:10 pm
SJO
-
STL
16h 36m
1 stop
American Airlines Logo
5:05 am - 12:33 pm
STL
-
SJO
7h 28m
1 stop
$603American Airlines
Wed, Dec 23 - Thu, Dec 31
American Airlines Logo
6:20 am - 9:08 pm
SJO
-
STL
14h 48m
2 stops
American Airlines Logo
6:00 pm - 10:32 am
STL
-
SJO
16h 32m
1 stop
$605American Airlines
Thu, Dec 24 - Thu, Dec 31

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

United Airlines flights from Costa Rica to St. Louis

Our best United Airlines deals on Costa Rica to St. Louis flight tickets
United Airlines
Jul 24
SJO7:55 amSan José Juan Santamaria Intl
13h 50m
1 stop
STL10:45 pmLambert-St Louis
Jul 28
STL6:14 amLambert-St Louis
17h 25m
1 stop
SJO10:39 pmSan José Juan Santamaria Intl
$569
United Airlines
Jul 23
SJO12:30 amSan José Juan Santamaria Intl
19h 56m
2 stops
STL9:26 pmLambert-St Louis
Jul 28
STL6:14 amLambert-St Louis
17h 25m
1 stop
SJO10:39 pmSan José Juan Santamaria Intl
$574
United Airlines
Jul 23
SJO12:44 pmSan José Juan Santamaria Intl
10h 00m
1 stop
STL11:44 pmLambert-St Louis
Jul 28
STL11:10 amLambert-St Louis
12h 29m
1 stop
SJO10:39 pmSan José Juan Santamaria Intl
$609

Air Canada flights from Costa Rica to St. Louis

Our best Air Canada deals on Costa Rica to St. Louis flight tickets
Air Canada
Aug 9
SJO7:10 amSan José Juan Santamaria Intl
34h 32m
2 stops
STL6:42 pmLambert-St Louis
Aug 30
STL8:55 amLambert-St Louis
12h 25m
2 stops
SJO8:20 pmSan José Juan Santamaria Intl
$577
Air Canada
Nov 25
SJO9:20 amSan José Juan Santamaria Intl
30h 06m
2 stops
STL3:26 pmLambert-St Louis
Nov 30
STL4:05 pmLambert-St Louis
30h 25m
1 stop
SJO10:30 pmSan José Juan Santamaria Intl
$680
Air Canada
Nov 25
SJO9:20 amSan José Juan Santamaria Intl
30h 06m
2 stops
STL3:26 pmLambert-St Louis
Nov 30
STL4:05 pmLambert-St Louis
31h 45m
2 stops
SJO11:50 pmSan José Juan Santamaria Intl
$683

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 July 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

Thu 8/13

9:35 am-11:59 pm

1 stop13h 24m

Lambert-St Louis

Tue 8/18

8:55 am-10:00 pm

1 stop14h 05m

$514

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 7/24

7:55 am-10:45 pm

1 stop13h 50m

Lambert-St Louis

Tue 7/28

6:14 am-10:39 pm

1 stop17h 25m

$569

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 7/23

12:30 am-9:26 pm

2 stops19h 56m

Lambert-St Louis

Tue 7/28

6:14 am-10:39 pm

1 stop17h 25m

$574

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sun 8/9

7:10 am-6:42 pm

2 stops34h 32m

Lambert-St Louis

Sun 8/30

8:55 am-8:20 pm

2 stops12h 25m

$577

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Tue 7/21

7:10 am-8:22 pm

1 stop12h 12m

Lambert-St Louis

Fri 7/24

4:09 pm-8:30 am

1 stop17h 21m

$589
Quickest round-trip

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sun 8/9

9:35 am-11:59 pm

1 stop13h 24m

Lambert-St Louis

Sun 8/30

12:10 pm-8:20 pm

1 stop9h 10m

$592

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 12/23

12:34 am-5:10 pm

1 stop16h 36m

Lambert-St Louis

Thu 12/31

5:05 am-12:33 pm

1 stop7h 28m

$601

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 12/23

12:34 am-5:10 pm

1 stop16h 36m

Lambert-St Louis

Thu 12/31

5:05 am-12:33 pm

1 stop7h 28m

$602

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 12/23

12:34 am-5:10 pm

1 stop16h 36m

Lambert-St Louis

Thu 12/31

5:05 am-12:33 pm

1 stop7h 28m

$603

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 12/24

6:20 am-9:08 pm

2 stops14h 48m

Lambert-St Louis

Thu 12/31

6:00 pm-10:32 am

1 stop16h 32m

$605

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $0. The month of November is another great option to travel to St. Louis, with average flight prices from Costa Rica averaging around $186.

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

You could potentially save up to 46% 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

13h 35m

Direct flights

None
The fastest flight from Costa Rica to St. Louis takes 13h 35m
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
11,784 reviews
Search American Airlines flights
United AirlinesPriceFrom $396Free CancellationRating
7.4
9,938 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
Maryland Heights
Florissant
St. Peters
O'Fallon
Collinsville
Alton
Farmington
Wentzville
Clayton
Fenton
Festus
Eureka
Litchfield
Edwardsville
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.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 8/5
Wed 8/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States