$152+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJO
May 28 — Jun 41
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 April 28, 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 April 28, 2026.
This Travelocity deal was found by Cheapflights users on 4/22. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:10 pm
STL
- SJO
1 stop17h 10m
Frontier
Sun 7/129:35 am
SJO
- STL
1 stop13h 39m
Frontier
Deal found 4/22![Frontier logo]()
$338
This Expedia deal was found by Cheapflights users on 4/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/64:19 pm
STL
- SJO
1 stop17h 00m
Frontier
Thu 6/119:35 am
SJO
- STL
1 stop13h 34m
Frontier
Deal found 4/25![Frontier logo]()
$358
This CheapOair deal was found by Cheapflights users on 4/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/304:10 pm
STL
- SJO
1 stop17h 10m
Frontier
Thu 9/39:35 am
SJO
- STL
1 stop13h 39m
Frontier
Deal found 4/23![Frontier logo]()
$369
This FlightHub deal was found by Cheapflights users on 4/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/64:19 pm
STL
- SJO
1 stop17h 00m
Frontier
Sat 6/139:35 am
SJO
- STL
1 stop13h 34m
Frontier
Deal found 4/27![Frontier logo]()
$388
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Sun 5/317:03 am
STL
- SJO
1 stop16h 39m
American Airlines
Fri 6/511:59 pm
SJO
- STL
1 stop7h 51m
American Airlines
Deal found 4/27![American Airlines logo]()
$396
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Sun 8/306:03 am
STL
- SJO
2 stops14h 49m
American Airlines
Thu 9/36:00 am
SJO
- STL
2 stops16h 23m
American Airlines
Deal found 4/27![American Airlines logo]()
$401
This American Airlines deal was found by Cheapflights users on 4/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:21 pm
STL
- SJO
1 stop21h 18m
American Airlines
Thu 11/121:23 pm
SJO
- STL
1 stop10h 42m
American Airlines
Deal found 4/25![American Airlines logo]()
$406
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 April 28, 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 April 28, 2026.
This Delta deal was found by Cheapflights users on 4/23. 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.
Tue 9/226:00 am
STL
- SJO
1 stop6h 54m
Delta
Wed 9/301:25 pm
SJO
- STL
1 stop9h 12m
Delta
Deal found 4/23![Delta logo]()
$396
This Southwest deal was found by Cheapflights users on 4/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:25 am
STL
- SJO
1 stop7h 10m
Southwest
Fri 5/229:00 am
SJO
- STL
1 stop13h 40m
Southwest
Deal found 4/25![Southwest logo]()
$458
This United Airlines deal was found by Cheapflights users on 4/24. 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.
Fri 6/51:13 pm
STL
- SJO
2 stops21h 58m
United Airlines
Wed 6/1012:30 am
SJO
- STL
2 stops14h 16m
United Airlines
Deal found 4/24![United Airlines logo]()
$551
This American Airlines deal was found by Cheapflights users on 4/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:54 pm
STL
- SJO
1 stop17h 41m
American Airlines
Fri 5/1511:35 pm
SJO
- STL
2 stops11h 12m
American Airlines
Deal found 4/25![American Airlines logo]()
$563
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Sun 6/286:00 am
STL
- SJO
2 stops17h 39m
United Airlines
Sat 7/412:30 am
SJO
- STL
2 stops14h 16m
United Airlines
Deal found 4/23![United Airlines logo]()
$551
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/146:14 am
STL
- SJO
1 stop17h 25m
United Airlines
Mon 6/2212:44 pm
SJO
- STL
2 stops22h 27m
United Airlines
Deal found 4/26![United Airlines logo]()
$551
This United Airlines deal was found by Cheapflights users on 4/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/167:45 am
STL
- SJO
2 stops29h 36m
United Airlines
Fri 5/221:25 pm
SJO
- STL
2 stops20h 09m
United Airlines
Deal found 4/25![United Airlines logo]()
$598
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/167:45 am
STL
- SJO
2 stops36h 52m
United Airlines
Thu 5/2111:13 am
SJO
- STL
1 stop10h 32m
United Airlines
Deal found 4/27![United Airlines logo]()
$621
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:28 pm
STL
- SJO
2 stops19h 53m
United Airlines
Mon 5/181:25 pm
SJO
- STL
2 stops18h 14m
United Airlines
Deal found 4/27![United Airlines logo]()
$632
Last-minute flights from St. Louis to San JoséDiscover last-minute flight deals from St. Louis to San José. Data last updated April 28, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to San José. Data last updated April 28, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/27. 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 5/95:20 am
STL
- SJO
1 stop9h 06m
American Airlines
Wed 5/206:30 am
SJO
- STL
1 stop14h 54m
American Airlines
Deal found 4/27![American Airlines logo]()
$477
This Southwest deal was found by Cheapflights users on 4/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:25 am
STL
- SJO
1 stop7h 10m
Southwest
Fri 5/229:00 am
SJO
- STL
1 stop13h 40m
Southwest
Deal found 4/25![Southwest logo]()
$458
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Sat 5/165:27 pm
STL
- SJO
2 stops19h 18m
Multiple Airlines
Fri 5/227:00 am
SJO
- STL
1 stop15h 57m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$466
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Mon 5/185:27 pm
STL
- SJO
2 stops46h 51m
Multiple Airlines
Thu 5/289:35 am
SJO
- STL
1 stop13h 22m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$483
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Tue 5/1911:06 am
STL
- SJO
1 stop9h 01m
American Airlines
Fri 5/2911:59 pm
SJO
- STL
1 stop7h 52m
American Airlines
Deal found 4/27![American Airlines logo]()
$442
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Wed 5/206:29 am
STL
- SJO
2 stops13h 38m
American Airlines
Wed 6/311:59 pm
SJO
- STL
1 stop7h 51m
American Airlines
Deal found 4/27![American Airlines logo]()
$472
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Mon 5/254:19 pm
STL
- SJO
1 stop23h 59m
Multiple Airlines
Fri 5/291:00 pm
SJO
- STL
2 stops18h 55m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$433
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Wed 5/276:12 pm
STL
- SJO
1 stop19h 47m
American Airlines
Wed 6/32:09 pm
SJO
- STL
1 stop8h 50m
American Airlines
Deal found 4/27![American Airlines logo]()
$479
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:27 pm
STL
- SJO
2 stops19h 18m
Multiple Airlines
Sun 6/79:35 am
SJO
- STL
1 stop24h 18m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$452
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Sun 5/317:03 am
STL
- SJO
1 stop16h 39m
American Airlines
Fri 6/511:59 pm
SJO
- STL
1 stop7h 51m
American Airlines
Deal found 4/27![American Airlines logo]()
$396
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 April 28, 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 April 28, 2026.
This Priceline deal was found by Cheapflights users on 4/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/154:09 pm
STL
- SJO
1 stop17h 11m
Frontier
Deal found 4/27![Frontier logo]()
$152
This American Airlines deal was found by Cheapflights users on 4/27. 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 8/156:25 pm
STL
- SJO
2 stops18h 09m
American Airlines
Deal found 4/27![American Airlines logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
Thu 6/46:33 pm
STL
- SJO
2 stops18h 12m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$198
This American Airlines deal was found by Cheapflights users on 4/23. 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 5/155:20 am
STL
- SJO
1 stop17h 16m
American Airlines
Deal found 4/23![American Airlines logo]()
$207
This American Airlines deal was found by Cheapflights users on 4/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:15 am
STL
- SJO
2 stops14h 09m
American Airlines
Deal found 4/25![American Airlines logo]()
$212
This American Airlines deal was found by Cheapflights users on 4/26. 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 6/35:14 am
STL
- SJO
2 stops18h 28m
American Airlines
Deal found 4/26![American Airlines logo]()
$227
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/38:35 am
STL
- SJO
1 stop12h 02m
United Airlines
Deal found 4/26![United Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 4/26. 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.
Fri 6/56:15 am
STL
- SJO
2 stops14h 08m
American Airlines
Deal found 4/26![American Airlines logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
Wed 6/35:27 pm
STL
- SJO
3 stops22h 44m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$273
This Air Canada deal was found by Cheapflights users on 4/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:05 am
STL
- SJO
2 stops14h 30m
Air Canada
Deal found 4/27![Air Canada logo]()
$291
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 April 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $338 (Travelocity) |
One-way from | $152 (Priceline) |
Popular in | March |
Cheapest in | January |
Average price | $516 |
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 April 28, 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
Quickest round-trip
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Tue 9/22
6:00 am-11:54 am
1 stop6h 54m
San José Juan Santamaria Intl
Wed 9/30
1:25 pm-11:37 pm
1 stop9h 12m
$396
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Sat 5/16
6:25 am-12:35 pm
1 stop7h 10m
San José Juan Santamaria Intl
Fri 5/22
9:00 am-11:40 pm
1 stop13h 40m
$458
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Fri 6/5
1:13 pm-10:11 am
2 stops21h 58m
San José Juan Santamaria Intl
Wed 6/10
12:30 am-3:46 pm
2 stops14h 16m
$551
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Sun 6/28
6:00 am-10:39 pm
2 stops17h 39m
San José Juan Santamaria Intl
Sat 7/4
12:30 am-3:46 pm
2 stops14h 16m
$551
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Sun 6/14
6:14 am-10:39 pm
1 stop17h 25m
San José Juan Santamaria Intl
Mon 6/22
12:44 pm-12:11 pm
2 stops22h 27m
$551
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Mon 5/11
6:54 pm-11:35 am
1 stop17h 41m
San José Juan Santamaria Intl
Fri 5/15
11:35 pm-11:47 am
2 stops11h 12m
$563
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Sat 5/16
7:45 am-12:21 pm
2 stops29h 36m
San José Juan Santamaria Intl
Fri 5/22
1:25 pm-10:34 am
2 stops20h 09m
$598
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Sat 5/16
7:45 am-7:37 pm
2 stops36h 52m
San José Juan Santamaria Intl
Thu 5/21
11:13 am-10:45 pm
1 stop10h 32m
$621
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Mon 5/11
5:28 pm-12:21 pm
2 stops19h 53m
San José Juan Santamaria Intl
Mon 5/18
1:25 pm-8:39 am
2 stops18h 14m
$632
Cheapest one-way
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Thu 6/4
6:33 pm-11:45 am
2 stops18h 12m
$198
Showing 1-10 of 17 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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 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.
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 71 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, January is the cheapest month in which you can book a flight from St. Louis to San José (average of $403). Flying from St. Louis to San José in March is currently the most expensive (average of $862). 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 April 28, 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.
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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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St. Louis and San José flights
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Top 4 airlines flying from St. Louis to San José
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$257 | Average$542 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$331 | Average$494 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$379 | Average$519 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$383 | Average$657 | FlexibilityNo cancel fee | On-time63% |