$159+ Cheap flights from Costa Rica to St. Louis (STL)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — STL
Dec 3 — Dec 101
1 adult, Economy
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1. Tell us where you want to go
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Cheapest flights from Costa Rica to St. LouisExplore the most affordable flight options available from Costa Rica to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.
Explore the most affordable flight options available from Costa Rica to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.
This Kiwi.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/201:31 pmSJO - STL
1 stop21h 25mSpirit Airlines
Tue 1/611:51 amSTL - SJO
1 stop24h 34mSpirit Airlines
Deal found 11/1![Spirit Airlines logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/201:31 pmSJO - STL
1 stop21h 25mMultiple Airlines
Tue 1/65:11 pmSTL - SJO
2 stops19h 14mMultiple Airlines
Deal found 11/1![Multiple Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/201:31 pmSJO - STL
1 stop21h 25mMultiple Airlines
Mon 1/510:40 amSTL - SJO
1 stop25h 02mMultiple Airlines
Deal found 11/1![Multiple Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:30 amSJO - STL
2 stops16h 13mUnited Airlines
Sun 1/46:00 amSTL - SJO
1 stop16h 32mUnited Airlines
Deal found 11/1![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/182:31 pmSJO - STL
1 stop7h 26mDelta
Tue 1/69:59 amSTL - SJO
1 stop12h 16mDelta
Deal found 11/1![Delta logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2511:24 amSJO - STL
1 stop22h 05mMultiple Airlines
Wed 12/33:30 pmSTL - SJO
1 stop20h 12mMultiple Airlines
Deal found 10/31![Multiple Airlines logo]()
$415
This American Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1912:34 amSJO - STL
1 stop8h 22mAmerican Airlines
Mon 1/55:16 amSTL - SJO
1 stop17h 29mAmerican Airlines
Deal found 11/1![American Airlines logo]()
$416
This American Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/257:00 amSJO - STL
2 stops12h 30mAmerican Airlines
Wed 12/310:13 amSTL - SJO
2 stops12h 15mAmerican Airlines
Deal found 10/31![American Airlines logo]()
$421
This American Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1712:34 amSJO - STL
1 stop16h 36mAmerican Airlines
Tue 1/66:00 amSTL - SJO
1 stop16h 30mAmerican Airlines
Deal found 11/1![American Airlines logo]()
$425
Cheap flight deals from Costa Rica to St. Louis
Keep the following information in mind while searching for Costa Rica to St. Louis flight deals. Data was last updated November 3, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $318 (Kiwi.com) |
One-way from | $159 (Kiwi.com) |
Popular in | April |
Cheapest in | January |
Average price | $589 |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from Costa Rica to St. Louis that are best for you.
Fly from
Costa Rica
Fly to
St. Louis
Route
Depart
Return
Price
San JoséSt. Louis
SJO - STL
SJOSTL
San José Juan Santamaria Intl
Sat 12/20
1:31 pm-10:56 am
1 stop21h 25m
Lambert-St Louis
Tue 1/6
11:51 am-12:25 pm
1 stop24h 34m
$318
San JoséSt. Louis
SJO - STL
SJOSTL
San José Juan Santamaria Intl
Sat 12/20
1:31 pm-10:56 am
1 stop21h 25m
Lambert-St Louis
Mon 1/5
10:40 am-11:42 am
1 stop25h 02m
$343
San JoséSt. Louis
SJO - STL
SJOSTL
San José Juan Santamaria Intl
Sat 12/20
6:30 am-10:43 pm
2 stops16h 13m
Lambert-St Louis
Sun 1/4
6:00 am-10:32 pm
1 stop16h 32m
$369
San JoséSt. Louis
SJO - STL
SJOSTL
San José Juan Santamaria Intl
Thu 12/18
2:31 pm-9:57 pm
1 stop7h 26m
Lambert-St Louis
Tue 1/6
9:59 am-10:15 pm
1 stop12h 16m
$409
San JoséSt. Louis
SJO - STL
SJOSTL
San José Juan Santamaria Intl
Fri 12/19
12:34 am-8:56 am
1 stop8h 22m
Lambert-St Louis
Mon 1/5
5:16 am-10:45 pm
1 stop17h 29m
$416
San JoséSt. Louis
SJO - STL
SJOSTL
San José Juan Santamaria Intl
Tue 11/25
11:24 am-9:29 am
1 stop22h 05m
Lambert-St Louis
Wed 12/3
7:43 pm-11:42 am
2 stops15h 59m
$417
San JoséSt. Louis
SJO - STL
SJOSTL
San José Juan Santamaria Intl
Tue 11/25
7:00 am-7:30 pm
2 stops12h 30m
Lambert-St Louis
Wed 12/3
10:13 am-10:28 pm
2 stops12h 15m
$421
San JoséSt. Louis
SJO - STL
SJOSTL
San José Juan Santamaria Intl
Wed 12/17
12:34 am-5:10 pm
1 stop16h 36m
Lambert-St Louis
Tue 1/6
6:00 am-10:30 pm
1 stop16h 30m
$425
San JoséSt. Louis
SJO - STL
SJOSTL
San José Juan Santamaria Intl
Thu 11/20
2:31 pm-11:44 pm
1 stop9h 13m
Lambert-St Louis
Sun 11/30
7:05 am-10:07 pm
1 stop15h 02m
$438
San JoséSt. Louis
SJO - STL
SJOSTL
San José Juan Santamaria Intl
Wed 12/10
1:31 pm-1:52 pm
1 stop24h 21m
$159
Showing 1-10 of 15 results
Best time to book a flight from Costa Rica to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Costa Rica with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Costa Rica to St. Louis
What is the cheapest month to book a flight from Costa Rica to St. Louis?
Currently, April is the cheapest month in which you can book a flight from Costa Rica to St. Louis (average of $220). Flying from Costa Rica to St. Louis in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from CR to STL?
Find hourly flight availability from Costa Rica to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.
It’s optimal to fly from Costa Rica to St. Louis in the morning. By choosing this option you can save up to 31% on the cost of your flight, compared to a flight in the evening.
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated November 3, 2025.
See what other customers who have flown with United Airlines and American Airlines from Costa Rica to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Food
6.6
Overall
7.4
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Crew
8.1
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Food
6.6
Overall
7.4
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Crew
8.1
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Food
6.6
Overall
7.4
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Related info for your journey
Find useful and relevant information for your journey from Costa Rica to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus
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Alternative routes for Costa Rica to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from Costa Rica to St. Louis
Discover the top 2 airlines that operate flights from Costa Rica to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$274 | Average$453 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$328 | Average$426 | FlexibilityNo cancel fee | On-time69% |