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Cheap flights from Costa Rica to St. Louis from $150

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 2/20. 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

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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 - 11:59 pm
SJO
-
STL
11h 24m1 stop
Multiple Airlines Logo
3:49 pm - 11:40 am
STL
-
SJO
19h 51m1 stop
$280Multiple Airlines
Thu, Feb 12 - Tue, Feb 17
Multiple Airlines Logo
1:31 pm - 12:27 am
SJO
-
STL
34h 56m2 stops
Multiple Airlines Logo
3:49 pm - 11:40 am
STL
-
SJO
19h 51m1 stop
$302Multiple Airlines
Thu, Feb 12 - Tue, Feb 17
United Airlines Logo
2:05 pm - 10:58 pm
SJO
-
STL
8h 53m1 stop
United Airlines Logo
6:00 am - 6:16 pm
STL
-
SJO
12h 16m1 stop
$313United Airlines
Fri, Jan 23 - Mon, Jan 26
United Airlines Logo
2:05 pm - 10:58 pm
SJO
-
STL
8h 53m1 stop
United Airlines Logo
6:40 pm - 6:16 pm
STL
-
SJO
23h 36m2 stops
$318United Airlines
Fri, Jan 23 - Mon, Jan 26
United Airlines Logo
2:05 pm - 10:58 pm
SJO
-
STL
8h 53m1 stop
United Airlines Logo
3:11 pm - 1:15 pm
STL
-
SJO
22h 04m2 stops
$324United Airlines
Fri, Jan 23 - Mon, Jan 26
United Airlines Logo
2:20 pm - 10:00 pm
SJO
-
STL
7h 40m1 stop
United Airlines Logo
10:07 am - 6:16 pm
STL
-
SJO
8h 09m1 stop
$336United Airlines
Fri, Jan 23 - Mon, Jan 26
United Airlines Logo
2:20 pm - 7:27 pm
SJO
-
STL
29h 07m2 stops
United Airlines Logo
4:49 pm - 1:15 pm
STL
-
SJO
20h 26m2 stops
$340United Airlines
Fri, Jan 23 - Mon, Jan 26
American Airlines Logo
12:35 am - 11:01 am
SJO
-
STL
10h 26m1 stop
American Airlines Logo
5:12 am - 2:53 pm
STL
-
SJO
9h 41m1 stop
$358American Airlines
Wed, Feb 25 - Mon, Mar 2
United Airlines Logo
2:20 pm - 9:05 pm
SJO
-
STL
30h 45m2 stops
United Airlines Logo
6:55 pm - 1:15 pm
STL
-
SJO
18h 20m2 stops
$362United Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
1:20 pm - 9:21 am
SJO
-
STL
19h 01m1 stop
United Airlines Logo
11:25 am - 9:32 pm
STL
-
SJO
11h 07m2 stops
$370United Airlines
Mon, Mar 9 - Tue, Mar 24

GOL flights from Costa Rica to St. Louis

Our best GOL deals on Costa Rica to St. Louis flight tickets
GOL
Apr 2
SJO2:59 pmSan José Juan Santamaria Intl
7h 57m
1 stop
STL11:56 pmLambert-St Louis
Apr 5
STL6:57 pmLambert-St Louis
17h 29m
2 stops
SJO11:26 amSan José Juan Santamaria Intl
$481
Find similar
GOL
Apr 1
SJO7:00 amSan José Juan Santamaria Intl
12h 16m
2 stops
STL8:16 pmLambert-St Louis
Apr 5
STL6:50 pmLambert-St Louis
17h 36m
2 stops
SJO11:26 amSan José Juan Santamaria Intl
$547
Find similar

Avianca flights from Costa Rica to St. Louis

Our best Avianca deals on Costa Rica to St. Louis flight tickets
Avianca
Mar 9
SJO12:40 pmSan José Juan Santamaria Intl
20h 47m
3 stops
STL10:27 amLambert-St Louis
Mar 24
STL8:30 amLambert-St Louis
16h 10m
2 stops
SJO11:40 pmSan José Juan Santamaria Intl
$488
Find similar
Avianca
Mar 9
SJO12:40 pmSan José Juan Santamaria Intl
20h 47m
3 stops
STL10:27 amLambert-St Louis
Mar 24
STL8:30 amLambert-St Louis
28h 15m
3 stops
SJO11:45 amSan José Juan Santamaria Intl
$572
Find similar
Avianca
Jan 23
SJO7:50 pmSan José Juan Santamaria Intl
23h 37m
2 stops
STL7:27 pmLambert-St Louis
Jan 26
STL8:30 amLambert-St Louis
27h 15m
3 stops
SJO11:45 amSan José Juan Santamaria Intl
$741
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 January 5, 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

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 2/12

12:35 pm-11:59 pm

1 stop11h 24m

Lambert-St Louis

Tue 2/17

3:49 pm-11:40 am

1 stop19h 51m

$280

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 2/12

1:31 pm-12:27 am

2 stops34h 56m

Lambert-St Louis

Tue 2/17

3:49 pm-11:40 am

1 stop19h 51m

$302

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 1/23

2:05 pm-10:58 pm

1 stop8h 53m

Lambert-St Louis

Mon 1/26

6:00 am-6:16 pm

1 stop12h 16m

$313

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 1/23

2:05 pm-10:58 pm

1 stop8h 53m

Lambert-St Louis

Mon 1/26

6:40 pm-6:16 pm

2 stops23h 36m

$318

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 1/23

2:05 pm-10:58 pm

1 stop8h 53m

Lambert-St Louis

Mon 1/26

3:11 pm-1:15 pm

2 stops22h 04m

$324

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 1/23

2:20 pm-10:00 pm

1 stop7h 40m

Lambert-St Louis

Mon 1/26

10:07 am-6:16 pm

1 stop8h 09m

$336

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 1/23

2:20 pm-7:27 pm

2 stops29h 07m

Lambert-St Louis

Mon 1/26

4:49 pm-1:15 pm

2 stops20h 26m

$340

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 2/25

12:35 am-11:01 am

1 stop10h 26m

Lambert-St Louis

Mon 3/2

5:12 am-2:53 pm

1 stop9h 41m

$358

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 2/26

2:20 pm-9:05 pm

2 stops30h 45m

Lambert-St Louis

Mon 3/2

6:55 pm-1:15 pm

2 stops18h 20m

$362

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Mon 3/9

1:20 pm-9:21 am

1 stop19h 01m

Lambert-St Louis

Tue 3/24

11:25 am-9:32 pm

2 stops11h 07m

$370

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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 $362. The month of October is another great option to travel to St. Louis, with average flight prices from Costa Rica averaging around $362.

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
11,079 reviews
Search American Airlines flights
United AirlinesPriceFrom $328Free CancellationRating
7.4
9,138 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
Collinsville
St. Peters
Wentzville
Alton
Farmington
Clayton
Glencoe
Eureka
Festus
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.

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