Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Costa Rica to St. Louis from $207

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 6/11. 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
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.
Frontier Logo
9:35 am - 12:14 am
SJO
-
STL
13h 39m
1 stop
Frontier Logo
4:10 pm - 8:20 am
STL
-
SJO
17h 10m
1 stop
$349Frontier
Thu, Jul 9 - Thu, Jul 16
Frontier Logo
9:35 am - 11:57 pm
SJO
-
STL
13h 22m
1 stop
Frontier Logo
4:19 pm - 8:19 am
STL
-
SJO
17h 00m
1 stop
$419Frontier
Sun, May 31 - Sun, Jun 7
Frontier Logo
9:35 am - 12:14 am
SJO
-
STL
13h 39m
1 stop
Frontier Logo
3:33 pm - 8:20 am
STL
-
SJO
17h 47m
2 stops
$429Frontier
Thu, Jul 9 - Thu, Jul 16
United Airlines Logo
7:55 am - 5:49 pm
SJO
-
STL
8h 54m
1 stop
United Airlines Logo
6:15 am - 12:26 pm
STL
-
SJO
7h 11m
1 stop
$459United Airlines
Wed, Sep 23 - Sun, Sep 27
Southwest Logo
9:00 am - 10:10 pm
SJO
-
STL
12h 10m
2 stops
Southwest Logo
12:15 pm - 6:40 pm
STL
-
SJO
7h 25m
1 stop
$473Southwest
Wed, Sep 23 - Mon, Sep 28
United Airlines Logo
1:25 pm - 12:20 pm
SJO
-
STL
21h 55m
2 stops
United Airlines Logo
8:00 am - 12:21 pm
STL
-
SJO
29h 21m
2 stops
$479United Airlines
Wed, Sep 23 - Tue, Sep 29
American Airlines Logo
11:35 pm - 10:59 pm
SJO
-
STL
22h 24m
1 stop
American Airlines Logo
11:06 am - 7:07 pm
STL
-
SJO
9h 01m
1 stop
$480American Airlines
Fri, May 15 - Tue, May 19
American Airlines Logo
11:35 pm - 8:54 am
SJO
-
STL
8h 19m
1 stop
American Airlines Logo
6:29 am - 7:07 pm
STL
-
SJO
13h 38m
2 stops
$484American Airlines
Fri, May 15 - Tue, May 19
Multiple Airlines Logo
7:00 am - 8:55 am
SJO
-
STL
24h 55m
2 stops
Multiple Airlines Logo
4:19 pm - 8:19 am
STL
-
SJO
17h 00m
1 stop
$487Multiple Airlines
Sun, May 31 - Sun, Jun 7
United Airlines Logo
7:55 am - 5:49 pm
SJO
-
STL
8h 54m
1 stop
United Airlines Logo
6:49 pm - 12:21 pm
STL
-
SJO
18h 32m
2 stops
$491United Airlines
Wed, Sep 23 - Fri, Sep 25

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

Frontier flights from Costa Rica to St. Louis

Our best Frontier deals on Costa Rica to St. Louis flight tickets
Frontier
Jul 9
SJO9:35 amSan José Juan Santamaria Intl
13h 39m
1 stop
STL12:14 amLambert-St Louis
Jul 16
STL4:10 pmLambert-St Louis
17h 10m
1 stop
SJO8:20 amSan José Juan Santamaria Intl
$349
Frontier
May 31
SJO9:35 amSan José Juan Santamaria Intl
13h 22m
1 stop
STL11:57 pmLambert-St Louis
Jun 7
STL4:19 pmLambert-St Louis
17h 00m
1 stop
SJO8:19 amSan José Juan Santamaria Intl
$419
Frontier
Jul 9
SJO9:35 amSan José Juan Santamaria Intl
13h 39m
1 stop
STL12:14 amLambert-St Louis
Jul 16
STL3:33 pmLambert-St Louis
17h 47m
2 stops
SJO8:20 amSan José Juan Santamaria Intl
$429

United Airlines flights from Costa Rica to St. Louis

Our best United Airlines deals on Costa Rica to St. Louis flight tickets
United Airlines
Sep 23
SJO7:55 amSan José Juan Santamaria Intl
8h 54m
1 stop
STL5:49 pmLambert-St Louis
Sep 27
STL6:15 amLambert-St Louis
7h 11m
1 stop
SJO12:26 pmSan José Juan Santamaria Intl
$459
United Airlines
Sep 23
SJO1:25 pmSan José Juan Santamaria Intl
21h 55m
2 stops
STL12:20 pmLambert-St Louis
Sep 29
STL8:00 amLambert-St Louis
29h 21m
2 stops
SJO12:21 pmSan José Juan Santamaria Intl
$479
United Airlines
Sep 23
SJO7:55 amSan José Juan Santamaria Intl
8h 54m
1 stop
STL5:49 pmLambert-St Louis
Sep 25
STL6:49 pmLambert-St Louis
18h 32m
2 stops
SJO12:21 pmSan José Juan Santamaria Intl
$491

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 April 20, 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 7/9

9:35 am-12:14 am

1 stop13h 39m

Lambert-St Louis

Thu 7/16

4:10 pm-8:20 am

1 stop17h 10m

$349

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sun 5/31

9:35 am-11:57 pm

1 stop13h 22m

Lambert-St Louis

Sun 6/7

4:19 pm-8:19 am

1 stop17h 00m

$419

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 7/9

9:35 am-12:14 am

1 stop13h 39m

Lambert-St Louis

Thu 7/16

3:33 pm-8:20 am

2 stops17h 47m

$429
Quickest round-trip

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 9/23

7:55 am-5:49 pm

1 stop8h 54m

Lambert-St Louis

Sun 9/27

6:15 am-12:26 pm

1 stop7h 11m

$459

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 9/23

9:00 am-10:10 pm

2 stops12h 10m

Lambert-St Louis

Mon 9/28

12:15 pm-6:40 pm

1 stop7h 25m

$473

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 9/23

1:25 pm-12:20 pm

2 stops21h 55m

Lambert-St Louis

Tue 9/29

8:00 am-12:21 pm

2 stops29h 21m

$479

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 5/15

11:35 pm-10:59 pm

1 stop22h 24m

Lambert-St Louis

Tue 5/19

11:06 am-7:07 pm

1 stop9h 01m

$480

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 5/15

11:35 pm-8:54 am

1 stop8h 19m

Lambert-St Louis

Tue 5/19

6:29 am-7:07 pm

2 stops13h 38m

$484

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sun 5/31

7:00 am-8:55 am

2 stops24h 55m

Lambert-St Louis

Sun 6/7

4:19 pm-8:19 am

1 stop17h 00m

$487

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 9/23

7:55 am-5:49 pm

1 stop8h 54m

Lambert-St Louis

Fri 9/25

6:49 pm-12:21 pm

2 stops18h 32m

$491

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 $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 28% 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

8h 47m

Direct flights

None
The fastest flight from Costa Rica to St. Louis takes 8h 47m
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
11,628 reviews
Search American Airlines flights
United AirlinesPriceFrom $306Free CancellationRating
7.4
9,607 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
Wentzville
Alton
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
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.

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 5/20
Wed 5/27
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States