Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Costa Rica to St. Louis from $241

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 1/10. 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.

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

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
12:35 pm - 10:27 pm
SJO
-
STL
9h 52m1 stop
Multiple Airlines Logo
3:49 pm - 12:22 pm
STL
-
SJO
20h 33m2 stops
$278Multiple Airlines
Wed, Feb 18 - Mon, Feb 23
Multiple Airlines Logo
12:35 pm - 10:27 pm
SJO
-
STL
9h 52m1 stop
Multiple Airlines Logo
3:49 pm - 12:22 pm
STL
-
SJO
20h 33m2 stops
$290Multiple Airlines
Wed, Feb 18 - Tue, Feb 24
Multiple Airlines Logo
12:35 pm - 10:27 pm
SJO
-
STL
9h 52m1 stop
Multiple Airlines Logo
3:49 pm - 11:40 am
STL
-
SJO
19h 51m1 stop
$313Multiple Airlines
Wed, Feb 18 - Mon, Feb 23
Multiple Airlines Logo
1:31 pm - 10:27 pm
SJO
-
STL
32h 56m2 stops
Multiple Airlines Logo
3:49 pm - 11:40 am
STL
-
SJO
19h 51m1 stop
$314Multiple Airlines
Tue, Feb 17 - Mon, Feb 23
Multiple Airlines Logo
12:33 pm - 11:33 pm
SJO
-
STL
11h 00m1 stop
Multiple Airlines Logo
8:22 pm - 12:22 pm
STL
-
SJO
40h 00m2 stops
$321Multiple Airlines
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
12:35 pm - 10:27 pm
SJO
-
STL
9h 52m1 stop
Multiple Airlines Logo
3:49 pm - 11:40 am
STL
-
SJO
19h 51m1 stop
$325Multiple Airlines
Wed, Feb 18 - Tue, Feb 24
Multiple Airlines Logo
1:31 pm - 10:27 pm
SJO
-
STL
32h 56m2 stops
Multiple Airlines Logo
3:49 pm - 11:40 am
STL
-
SJO
19h 51m1 stop
$327Multiple Airlines
Tue, Feb 17 - Tue, Feb 24
Multiple Airlines Logo
12:35 pm - 11:59 pm
SJO
-
STL
11h 24m1 stop
Multiple Airlines Logo
8:17 pm - 3:30 pm
STL
-
SJO
19h 13m2 stops
$331Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
Multiple Airlines Logo
12:33 pm - 11:33 pm
SJO
-
STL
11h 00m1 stop
Multiple Airlines Logo
5:42 pm - 11:37 am
STL
-
SJO
17h 55m1 stop
$338Multiple Airlines
Sat, Jan 31 - Sat, Feb 7
United Airlines Logo
2:05 pm - 10:58 pm
SJO
-
STL
8h 53m1 stop
United Airlines Logo
10:07 am - 8:39 pm
STL
-
SJO
10h 32m1 stop
$357United Airlines
Thu, Jan 29 - Mon, Feb 2

United Airlines flights from Costa Rica to St. Louis

Our best United Airlines deals on Costa Rica to St. Louis flight tickets
United Airlines
May 21
SJO12:30 amSan José Juan Santamaria Intl
15h 05m
1 stop
STL4:35 pmLambert-St Louis
May 30
STL6:49 pmLambert-St Louis
16h 22m
2 stops
SJO10:11 amSan José Juan Santamaria Intl
$369
Find similar
United Airlines
Jan 31
SJO6:30 amSan José Juan Santamaria Intl
9h 09m
1 stop
STL3:39 pmLambert-St Louis
Feb 7
STL4:42 pmLambert-St Louis
20h 33m
1 stop
SJO1:15 pmSan José Juan Santamaria Intl
$390
Find similar
United Airlines
Apr 7
SJO11:13 amSan José Juan Santamaria Intl
32h 55m
2 stops
STL9:08 pmLambert-St Louis
Apr 10
STL6:00 amLambert-St Louis
14h 37m
1 stop
SJO7:37 pmSan José Juan Santamaria Intl
$400
Find similar

Delta flights from Costa Rica to St. Louis

Our best Delta deals on Costa Rica to St. Louis flight tickets
Delta
Feb 17
SJO7:00 amSan José Juan Santamaria Intl
7h 47m
1 stop
STL2:47 pmLambert-St Louis
Feb 24
STL10:13 amLambert-St Louis
11h 49m
1 stop
SJO10:02 pmSan José Juan Santamaria Intl
$409
Find similar
Delta
Jan 7
SJO2:31 pmSan José Juan Santamaria Intl
9h 08m
1 stop
STL11:39 pmLambert-St Louis
Jan 24
STL7:10 amLambert-St Louis
7h 19m
1 stop
SJO2:29 pmSan José Juan Santamaria Intl
$620
Find similar

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 December 19, 2025.
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

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 2/18

12:35 pm-10:27 pm

1 stop9h 52m

Lambert-St Louis

Mon 2/23

3:49 pm-12:22 pm

2 stops20h 33m

$278

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 2/18

12:35 pm-10:27 pm

1 stop9h 52m

Lambert-St Louis

Tue 2/24

3:49 pm-12:22 pm

2 stops20h 33m

$290

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 2/18

12:35 pm-10:27 pm

1 stop9h 52m

Lambert-St Louis

Mon 2/23

3:49 pm-11:40 am

1 stop19h 51m

$313

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Tue 2/17

1:31 pm-10:27 pm

2 stops32h 56m

Lambert-St Louis

Mon 2/23

3:49 pm-11:40 am

1 stop19h 51m

$314

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sat 1/31

12:33 pm-11:33 pm

1 stop11h 00m

Lambert-St Louis

Sat 2/7

8:22 pm-12:22 pm

2 stops40h 00m

$321

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 2/18

12:35 pm-10:27 pm

1 stop9h 52m

Lambert-St Louis

Tue 2/24

3:49 pm-11:40 am

1 stop19h 51m

$325

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Tue 2/17

1:31 pm-10:27 pm

2 stops32h 56m

Lambert-St Louis

Tue 2/24

3:49 pm-11:40 am

1 stop19h 51m

$327

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 2/26

12:35 pm-11:59 pm

1 stop11h 24m

Lambert-St Louis

Mon 3/2

8:17 pm-3:30 pm

2 stops19h 13m

$331

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sat 1/31

12:33 pm-11:33 pm

1 stop11h 00m

Lambert-St Louis

Sat 2/7

5:42 pm-11:37 am

1 stop17h 55m

$338

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 1/29

2:05 pm-10:58 pm

1 stop8h 53m

Lambert-St Louis

Mon 2/2

10:07 am-8:39 pm

1 stop10h 32m

$357

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 $362. The month of December is another great option to travel to St. Louis, with average flight prices from Costa Rica averaging around $365.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $420. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $690. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Costa Rica in the morning is the least expensive time of day to depart. momondo users have found prices as low as $479 when looking at flights departing in the morning. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $561 per ticket.

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 53m

Direct flights

None
The fastest flight from Costa Rica to St. Louis takes 8h 53m
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

  • 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
7.2
11,057 reviews
Search American Airlines flights
United AirlinesPriceFrom $328Free CancellationRating
7.4
9,094 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
Fenton
Wentzville
St. Peters
Collinsville
Alton
Clayton
Festus
Glencoe
Farmington
Eureka
Edwardsville
Litchfield
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
Sun 1/18
Sun 1/25
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States