$186+ Cheap flights from St. Louis (STL) to San José (SJO)
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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJO
Feb 26 — Mar 51
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to San José
Cheapest flights from St. Louis to San JoséExplore the most affordable flight options available from St. Louis to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.
Explore the most affordable flight options available from St. Louis to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Wed 2/183:49 pm
STL
- SJO
1 stop19h 51m
Multiple Airlines
Wed 2/2512:35 pm
SJO
- STL
1 stop9h 52m
Multiple Airlines
Deal found 1/25![Multiple Airlines logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 2/243:49 pm
STL
- SJO
1 stop19h 51m
Multiple Airlines
Tue 3/312:35 pm
SJO
- STL
2 stops18h 16m
Multiple Airlines
Deal found 1/25![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 3/33:49 pm
STL
- SJO
1 stop19h 51m
Multiple Airlines
Mon 3/911:35 am
SJO
- STL
2 stops45h 14m
Multiple Airlines
Deal found 1/26![Multiple Airlines logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 3/74:21 pm
STL
- SJO
1 stop18h 19m
Multiple Airlines
Wed 3/1111:35 am
SJO
- STL
1 stop10h 44m
Multiple Airlines
Deal found 1/26![Multiple Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 2/243:49 pm
STL
- SJO
1 stop19h 51m
Multiple Airlines
Sun 3/112:35 pm
SJO
- STL
2 stops18h 16m
Multiple Airlines
Deal found 1/25![Multiple Airlines logo]()
$357
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Mon 4/65:12 am
STL
- SJO
1 stop9h 43m
American Airlines
Tue 4/216:30 am
SJO
- STL
1 stop14h 54m
American Airlines
Deal found 1/27![American Airlines logo]()
$392
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Sat 5/166:11 pm
STL
- SJO
1 stop20h 11m
American Airlines
Thu 5/2111:59 pm
SJO
- STL
1 stop7h 51m
American Airlines
Deal found 1/27![American Airlines logo]()
$400
This American Airlines deal was found by Cheapflights users on 1/26. 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 3/411:22 am
STL
- SJO
1 stop9h 11m
American Airlines
Fri 3/612:35 am
SJO
- STL
1 stop8h 20m
American Airlines
Deal found 1/26![American Airlines logo]()
$401
Find flight deals from St. Louis to San José
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to San José (SJO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $290 (Kiwi.com) |
One-way from | $186 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $437 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to San José 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 January 27, 2026.
Use the filters below to find and compare flights from St. Louis to San José that are best for you.
Fly from
St. Louis
Fly to
San José
Route
Depart
Return
Price
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Tue 2/24
3:49 pm-11:40 am
1 stop19h 51m
San José Juan Santamaria Intl
Sun 3/1
12:35 pm-6:51 am
2 stops18h 16m
$357
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Tue 3/3
3:49 pm-11:40 am
1 stop19h 51m
San José Juan Santamaria Intl
Mon 3/9
11:35 am-11:19 pm
1 stop10h 44m
$362
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Sat 3/7
4:21 pm-10:40 am
1 stop18h 19m
San José Juan Santamaria Intl
Wed 3/11
12:31 pm-7:17 am
2 stops17h 46m
$372
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Sat 5/9
6:53 pm-11:25 am
1 stop17h 32m
San José Juan Santamaria Intl
Wed 5/20
11:35 pm-8:50 am
1 stop8h 15m
$392
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Mon 4/6
5:12 am-1:55 pm
1 stop9h 43m
San José Juan Santamaria Intl
Tue 4/21
6:30 am-10:24 pm
1 stop14h 54m
$392
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Wed 4/8
5:24 am-1:08 pm
1 stop8h 44m
San José Juan Santamaria Intl
Wed 4/15
11:35 pm-5:21 pm
1 stop16h 46m
$392
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Tue 5/26
6:12 pm-1:00 pm
1 stop19h 48m
San José Juan Santamaria Intl
Fri 5/29
2:03 pm-8:31 am
1 stop17h 28m
$400
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Sat 2/7
5:42 pm-9:35 am
2 stops39h 53m
$186
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Thu 4/16
11:21 am-11:22 am
2 stops25h 01m
$189
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Thu 4/16
6:00 am-12:21 pm
1 stop7h 21m
$195
Showing 1-10 of 13 results
Compare providers for flights from St. Louis to San José
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to San José in January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on St. Louis-San José flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-San José flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-San José flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-San José flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-San José flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to San José
Have a flexible travel schedule? Discover the best time to fly to San José from St. Louis 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 St. Louis to San José
How far ahead should I book a flight from St. Louis to San José?
Use this chart to determine the optimal time to book a round-trip flight from St. Louis to San José. Price data was last updated on January 23, 2026.
To ensure you get the cheapest price possible for a flight from St. Louis to San José, you should look to book at least 43 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from St. Louis to San José?
Currently, February is the cheapest month in which you can book a flight from St. Louis to San José (average of $321). Flying from St. Louis to San José in July is currently the most expensive (average of $424). 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.
How much does it cost to fly round-trip from St. Louis to San José?
Reviews of airlines servicing San José
Get insights into the airlines that provide service to San José. 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 San José. Reviews last updated January 27, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from St. Louis to San José to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from St. Louis to San José. 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 San José?
Book flights to San José if you plan to visit one of these locationsAlajuela
Monteverde
Jacó
Heredia
Dominical
Manuel Antonio
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Alternative routes for St. Louis to San José
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from St. Louis to San José
Discover the top 4 airlines that operate flights from St. Louis to San José. 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 January 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$209 | Average$537 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$336 | Average$510 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$376 | Average$619 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$379 | Average$524 | FlexibilityNo cancel fee | On-time69% |