$235+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJO
sep. 4 — sep. 111
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to San José with Cheapflights
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
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Best
Last-minute
One-way
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 agosto 5, 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 agosto 5, 2026.
This American Airlines deal was found by Cheapflights users on 8/1. 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.
mié. 9/165:00 am -
1 stop16h 07m
sáb. 9/196:00 am -
2 stops17h 27m
Deal found 8/1![American Airlines logo]()
$487
This American Airlines deal was found by Cheapflights users on 8/1. 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.
jue. 9/246:30 am -
2 stops14h 37m
lun. 9/281:00 pm -
1 stop19h 24m
Deal found 8/1![American Airlines logo]()
$495
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/136:00 am -
1 stop6h 54m
lun. 9/211:19 pm -
1 stop9h 23m
Deal found 7/31![Delta logo]()
$496
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
lun. 10/198:34 pm -
1 stop19h 37m
sáb. 10/318:55 am -
2 stops24h 45m
Deal found 8/3![Multiple Airlines logo]()
$497
This American Airlines deal was found by Cheapflights users on 8/1. 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.
dom. 8/305:23 am -
1 stop8h 03m
jue. 9/31:29 pm -
1 stop8h 11m
Deal found 8/1![American Airlines logo]()
$502
This Delta deal was found by Cheapflights users on 8/4. 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.
mar. 11/1010:00 am -
1 stop12h 15m
mar. 11/177:00 am -
1 stop14h 33m
Deal found 8/4![Delta logo]()
$510
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
lun. 10/1910:35 am -
2 stops46h 20m
lun. 10/267:07 am -
1 stop11h 32m
Deal found 8/3![Multiple Airlines logo]()
$511
This Southwest deal was found by Cheapflights users on 8/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/95:10 am -
1 stop7h 10m
mar. 11/171:20 pm -
1 stop9h 05m
Deal found 8/4![Southwest logo]()
$512
This American Airlines deal was found by Cheapflights users on 8/1. 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.
mar. 11/106:44 pm -
2 stops18h 21m
mar. 11/173:54 pm -
2 stops17h 50m
Deal found 8/1![American Airlines logo]()
$515
Best flights from St. Louis to San JoséDiscover carefully curated flight deals from St. Louis to San José that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated agosto 5, 2026.
Discover carefully curated flight deals from St. Louis to San José that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated agosto 5, 2026.
This Delta deal was found by Cheapflights users on 8/4. 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.
mar. 11/1010:00 am -
1 stop12h 15m
mar. 11/177:00 am -
1 stop14h 33m
Deal found 8/4![Delta logo]()
$510
This Southwest deal was found by Cheapflights users on 8/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/95:10 am -
1 stop7h 10m
mar. 11/171:20 pm -
1 stop9h 05m
Deal found 8/4![Southwest logo]()
$512
This United Airlines deal was found by Cheapflights users on 7/30. 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.
lun. 10/266:15 am -
1 stop14h 24m
vie. 10/307:45 am -
1 stop9h 53m
Deal found 7/30![United Airlines logo]()
$630
This Delta deal was found by Cheapflights users on 8/1. 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.
mié. 12/910:00 am -
1 stop12h 15m
lun. 12/147:00 am -
1 stop16h 56m
Deal found 8/1![Delta logo]()
$540
This United Airlines deal was found by Cheapflights users on 8/3. 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.
lun. 9/286:15 am -
1 stop7h 06m
vie. 10/27:55 am -
1 stop13h 35m
Deal found 8/3![United Airlines logo]()
$630
This Southwest deal was found by Cheapflights users on 7/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/98:25 pm -
2 stops16h 50m
lun. 12/141:20 pm -
1 stop9h 05m
Deal found 7/31![Southwest logo]()
$662
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 1/195:00 am -
2 stops13h 16m
sáb. 1/231:15 am -
2 stops14h 26m
Deal found 7/31![United Airlines logo]()
$665
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 1/166:15 am -
1 stop14h 24m
vie. 1/221:15 am -
1 stop17h 23m
Deal found 7/31![United Airlines logo]()
$690
Last-minute flights from St. Louis to San JoséDiscover last-minute flight deals from St. Louis to San José. Data last updated agosto 5, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to San José. Data last updated agosto 5, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/1. 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.
vie. 8/285:00 am -
1 stop15h 52m
vie. 9/41:29 pm -
1 stop8h 11m
Deal found 8/1![American Airlines logo]()
$532
This American Airlines deal was found by Cheapflights users on 8/1. 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.
dom. 8/305:23 am -
1 stop8h 03m
jue. 9/31:29 pm -
1 stop8h 11m
Deal found 8/1![American Airlines logo]()
$502
This American Airlines deal was found by Cheapflights users on 8/1. 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.
lun. 9/75:42 am -
1 stop9h 10m
lun. 9/141:00 pm -
1 stop19h 24m
Deal found 8/1![American Airlines logo]()
$541
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/136:00 am -
1 stop6h 54m
lun. 9/211:19 pm -
1 stop9h 23m
Deal found 7/31![Delta logo]()
$496
This American Airlines deal was found by Cheapflights users on 8/1. 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.
mié. 9/165:00 am -
1 stop16h 07m
sáb. 9/196:00 am -
2 stops17h 27m
Deal found 8/1![American Airlines logo]()
$487
This American Airlines deal was found by Cheapflights users on 8/1. 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.
jue. 9/246:30 am -
2 stops14h 37m
lun. 9/281:00 pm -
1 stop19h 24m
Deal found 8/1![American Airlines logo]()
$495
One-way flights from St. Louis to San JoséSearch for one-way flight options from St. Louis to San José. Find affordable one-way fares based on user searches. Data last updated agosto 5, 2026.
Search for one-way flight options from St. Louis to San José. Find affordable one-way fares based on user searches. Data last updated agosto 5, 2026.
This Air Canada deal was found by Cheapflights users on 8/3. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/188:55 am -
1 stop14h 05m
Deal found 8/3![Air Canada logo]()
$235
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/156:15 am -
1 stop7h 06m
Deal found 7/31![United Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
jue. 10/1510:35 am -
2 stops29h 36m
Deal found 7/31![Multiple Airlines logo]()
$283
This deal was found by Cheapflights users on 8/4. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/1811:15 am -
1 stop9h 22m
Deal found 8/4![United Airlines logo]()
$388
This FlightHub deal was found by Cheapflights users on 8/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/188:40 am -
3 stops28h 05m
Deal found 8/3![Avianca logo]()
$425
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 agosto 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $487 (American Airlines) |
One-way from | $235 (Air Canada) |
Popular in | December |
Cheapest in | October |
Average price | $601 |
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 agosto 5, 2026.
Use the filters below to find and compare flights from St. Louis to San José that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
mar. 11/10
10:00 am-10:15 pm
1 stop12h 15m
San José Juan Santamaria Intl
mar. 11/17
7:00 am-9:33 pm
1 stop14h 33m
$510
Quickest round-trip
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
lun. 11/9
5:10 am-12:20 pm
1 stop7h 10m
San José Juan Santamaria Intl
mar. 11/17
1:20 pm-10:25 pm
1 stop9h 05m
$512
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
mié. 12/9
10:00 am-10:15 pm
1 stop12h 15m
San José Juan Santamaria Intl
lun. 12/14
7:00 am-11:56 pm
1 stop16h 56m
$540
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
lun. 10/26
6:15 am-7:39 pm
1 stop14h 24m
San José Juan Santamaria Intl
vie. 10/30
7:45 am-6:38 pm
1 stop9h 53m
$630
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
lun. 9/28
6:15 am-12:21 pm
1 stop7h 06m
San José Juan Santamaria Intl
vie. 10/2
7:55 am-10:30 pm
1 stop13h 35m
$630
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
mié. 12/9
8:25 pm-1:15 pm
2 stops16h 50m
San José Juan Santamaria Intl
lun. 12/14
1:20 pm-10:25 pm
1 stop9h 05m
$662
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
mar. 1/19
5:00 am-6:16 pm
2 stops13h 16m
San José Juan Santamaria Intl
sáb. 1/23
1:15 am-3:41 pm
2 stops14h 26m
$665
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
sáb. 1/16
6:15 am-8:39 pm
1 stop14h 24m
San José Juan Santamaria Intl
vie. 1/22
1:15 am-6:38 pm
1 stop17h 23m
$690
Cheapest one-way
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
mar. 8/18
8:55 am-10:00 pm
1 stop14h 05m
$235
Quickest one-way
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
jue. 10/15
6:15 am-12:21 pm
1 stop7h 06m
$264
Showing 1-10 of 15 resultsSorted by cheapest first
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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | 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.
STL-SJO
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?
To ensure you get the cheapest price possible for a flight from St. Louis to San José, you should look to book at least 18 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, October is the cheapest month in which you can book a flight from St. Louis to San José (average of $441). Flying from St. Louis to San José in December is currently the most expensive (average of $1,192). 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?
Airfare is below average for this route at the moment.
St. Louis to San José flights typically cost between $511 and $636 in September.The cheapest round-trip price found within the last 5 days was $487 on American Airlines (Sep 16-Sep 19).
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 agosto 5, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited 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.
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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
Jacó
Heredia
Dominical
Manuel Antonio
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St. Louis and San José flights
Browse other St. Louis and San José flight options. Last updated on agosto 5, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on agosto 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San José
Explore flights to San José departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on agosto 5, 2026.
Top 5 airlines flying from St. Louis to San José
Discover the top 5 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 agosto 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$359 | Average$602 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$359 | Average$540 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$386 | Average$572 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$388 | Average$670 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$628 | Average$1,039 | FlexibilityNo cancel fee | On-time74% |