Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Costa Rica to St. Louis from $292

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.
Multiple Airlines Logo
7:07 am - 9:40 am
SJO
-
STL
25h 33m
2 stops
Multiple Airlines Logo
8:34 pm - 3:11 pm
STL
-
SJO
19h 37m
1 stop
$498Multiple Airlines
Thu, Oct 1 - Thu, Oct 22
United Airlines Logo
7:55 am - 10:30 pm
SJO
-
STL
13h 35m
1 stop
United Airlines Logo
6:15 am - 7:37 pm
STL
-
SJO
14h 22m
1 stop
$536United Airlines
Thu, Oct 1 - Mon, Oct 5
Multiple Airlines Logo
7:07 am - 7:39 pm
SJO
-
STL
11h 32m
1 stop
Multiple Airlines Logo
8:34 pm - 3:11 pm
STL
-
SJO
19h 37m
1 stop
$539Multiple Airlines
Thu, Oct 1 - Thu, Oct 22
United Airlines Logo
7:55 am - 12:13 pm
SJO
-
STL
27h 18m
2 stops
United Airlines Logo
6:15 am - 7:37 pm
STL
-
SJO
14h 22m
1 stop
$540United Airlines
Thu, Oct 1 - Mon, Oct 5
Delta Logo
7:00 am - 11:39 pm
SJO
-
STL
16h 39m
1 stop
Delta Logo
6:00 am - 1:05 pm
STL
-
SJO
7h 05m
1 stop
$543Delta
Wed, Nov 25 - Mon, Nov 30
Southwest Logo
2:10 pm - 10:35 pm
SJO
-
STL
8h 25m
1 stop
Southwest Logo
8:20 pm - 1:15 pm
STL
-
SJO
16h 55m
2 stops
$551Southwest
Sun, Nov 8 - Mon, Nov 16
American Airlines Logo
6:38 am - 2:47 pm
SJO
-
STL
8h 09m
1 stop
American Airlines Logo
3:54 pm - 12:38 pm
STL
-
SJO
20h 44m
1 stop
$556American Airlines
Mon, Jan 11 - Mon, Jan 25
United Airlines Logo
1:25 pm - 2:17 pm
SJO
-
STL
23h 52m
2 stops
United Airlines Logo
10:27 am - 12:21 pm
STL
-
SJO
26h 54m
2 stops
$575United Airlines
Thu, Oct 1 - Thu, Oct 22
Air Canada Logo
9:20 am - 3:26 pm
SJO
-
STL
30h 06m
2 stops
Air Canada Logo
4:05 pm - 10:30 pm
STL
-
SJO
30h 25m
1 stop
$583Air Canada
Wed, Nov 25 - Mon, Nov 30
American Airlines Logo
1:31 pm - 8:35 am
SJO
-
STL
19h 04m
1 stop
American Airlines Logo
5:17 am - 2:29 pm
STL
-
SJO
9h 12m
1 stop
$585American 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

American Airlines flights from Costa Rica to St. Louis

Our best American Airlines deals on Costa Rica to St. Louis flight tickets
American Airlines
Dec 24
SJO1:31 pmSan José Juan Santamaria Intl
19h 04m
1 stop
STL8:35 amLambert-St Louis
Dec 31
STL5:17 amLambert-St Louis
9h 12m
1 stop
SJO2:29 pmSan José Juan Santamaria Intl
$556
American Airlines
Dec 23
SJO12:34 amSan José Juan Santamaria Intl
12h 40m
2 stops
STL1:14 pmLambert-St Louis
Dec 31
STL5:17 amLambert-St Louis
17h 28m
1 stop
SJO10:45 pmSan José Juan Santamaria Intl
$560
American Airlines
Dec 24
SJO1:31 pmSan José Juan Santamaria Intl
19h 04m
1 stop
STL8:35 amLambert-St Louis
Dec 31
STL5:17 amLambert-St Louis
9h 12m
1 stop
SJO2:29 pmSan José Juan Santamaria Intl
$585

Southwest flights from Costa Rica to St. Louis

Our best Southwest deals on Costa Rica to St. Louis flight tickets
Southwest
Nov 8
SJO1:20 pmSan José Juan Santamaria Intl
10h 45m
1 stop
STL12:05 amLambert-St Louis
Nov 15
STL5:10 amLambert-St Louis
7h 10m
1 stop
SJO12:20 pmSan José Juan Santamaria Intl
$546
Southwest
Nov 8
SJO2:10 pmSan José Juan Santamaria Intl
8h 25m
1 stop
STL10:35 pmLambert-St Louis
Nov 16
STL8:20 pmLambert-St Louis
16h 55m
2 stops
SJO1:15 pmSan José Juan Santamaria Intl
$551
Southwest
Aug 31
SJO9:00 amSan José Juan Santamaria Intl
9h 55m
2 stops
STL7:55 pmLambert-St Louis
Sep 7
STL7:40 amLambert-St Louis
12h 00m
2 stops
SJO6:40 pmSan José Juan Santamaria Intl
$719

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 18, 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 10/1

7:07 am-9:40 am

2 stops25h 33m

Lambert-St Louis

Thu 10/22

8:34 pm-3:11 pm

1 stop19h 37m

$498

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 10/1

7:55 am-10:30 pm

1 stop13h 35m

Lambert-St Louis

Mon 10/5

6:15 am-7:37 pm

1 stop14h 22m

$536

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 10/1

7:07 am-7:39 pm

1 stop11h 32m

Lambert-St Louis

Thu 10/22

8:34 pm-3:11 pm

1 stop19h 37m

$539

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 10/1

7:55 am-12:13 pm

2 stops27h 18m

Lambert-St Louis

Mon 10/5

6:15 am-7:37 pm

1 stop14h 22m

$540
Quickest round-trip

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 11/25

7:00 am-11:39 pm

1 stop16h 39m

Lambert-St Louis

Mon 11/30

6:00 am-1:05 pm

1 stop7h 05m

$543

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sun 11/8

2:10 pm-10:35 pm

1 stop8h 25m

Lambert-St Louis

Mon 11/16

8:20 pm-1:15 pm

2 stops16h 55m

$551

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Mon 1/11

6:38 am-2:47 pm

1 stop8h 09m

Lambert-St Louis

Mon 1/25

3:54 pm-12:38 pm

1 stop20h 44m

$556

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 10/1

1:25 pm-2:17 pm

2 stops23h 52m

Lambert-St Louis

Thu 10/22

10:27 am-12:21 pm

2 stops26h 54m

$575

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 11/25

9:20 am-3:26 pm

2 stops30h 06m

Lambert-St Louis

Mon 11/30

4:05 pm-10:30 pm

1 stop30h 25m

$583

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 12/24

1:31 pm-8:35 am

1 stop19h 04m

Lambert-St Louis

Thu 12/31

5:17 am-2:29 pm

1 stop9h 12m

$585

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, 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 39% 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

10h 00m

Direct flights

None
The fastest flight from Costa Rica to St. Louis takes 10h 00m
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
11,828 reviews
Search American Airlines flights
United AirlinesPriceFrom $400Free CancellationRating
7.4
10,006 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
Collinsville
Florissant
St. Peters
Maryland Heights
O'Fallon
Alton
Farmington
Wentzville
Clayton
Fenton
Festus
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.

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
Mon 8/17
Mon 8/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States