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St. Louis

$230+ Cheap flights from San José (SJO) 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — STL
Apr 15 — Apr 221
Wed 4/15
Wed 4/22
1 adult, Economy
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Cheap flight deals from San José to St. Louis

Cheapest flights from San José to St. Louis
Explore the most affordable flight options available from San José to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.

This United Airlines deal was found by Cheapflights users on 3/15. 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.
Thu 4/911:13 am
SJO
-
STL
1 stop21h 12m
United Airlines
Mon 4/206:00 am
STL
-
SJO
1 stop14h 37m
United Airlines
Deal found 3/15$392
This United Airlines deal was found by Cheapflights users on 3/13. 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 4/247:55 am
SJO
-
STL
2 stops27h 27m
United Airlines
Tue 4/286:00 am
STL
-
SJO
1 stop14h 37m
United Airlines
Deal found 3/13$405
This United Airlines deal was found by Cheapflights users on 3/15. 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 4/197:55 am
SJO
-
STL
2 stops23h 30m
United Airlines
Wed 4/296:30 am
STL
-
SJO
2 stops14h 49m
United Airlines
Deal found 3/15$413
This United Airlines deal was found by Cheapflights users on 3/15. 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.
Tue 4/287:55 am
SJO
-
STL
2 stops23h 30m
United Airlines
Wed 5/136:00 am
STL
-
SJO
1 stop14h 37m
United Airlines
Deal found 3/15$426
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 4/811:38 am
SJO
-
STL
2 stops28h 56m
Multiple Airlines
Mon 4/134:59 pm
STL
-
SJO
1 stop18h 43m
Multiple Airlines
Deal found 3/11$450
This United Airlines deal was found by Cheapflights users on 3/14. 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 5/137:55 am
SJO
-
STL
2 stops36h 18m
United Airlines
Tue 6/28:35 am
STL
-
SJO
1 stop12h 02m
United Airlines
Deal found 3/14$454
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Thu 4/97:55 am
SJO
-
STL
2 stops23h 30m
United Airlines
Wed 4/156:30 am
STL
-
SJO
2 stops14h 07m
United Airlines
Deal found 3/12$455
This United Airlines deal was found by Cheapflights users on 3/14. 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 4/2911:13 am
SJO
-
STL
1 stop10h 15m
United Airlines
Wed 5/66:00 am
STL
-
SJO
1 stop7h 21m
United Airlines
Deal found 3/14$458

Find flight deals from San José to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from San José (SJO) to St. Louis (STL). 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 March 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$392
(United Airlines)

One-way from

$230
(United Airlines)

Popular in

January

Cheapest in

October

Average price

$531
Provider with most accurate pricing for San José Juan Santamaria Intl-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for San José Juan Santamaria Intl-Lambert-St Louis flights.
Search Deals
From San José Juan Santamaria Intl to Lambert-St Louis
Search Deals
One-way flight from San José Juan Santamaria Intl to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San José 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 March 16, 2026.
Use the filters below to find and compare flights from San José to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 4/24

7:55 am-12:22 pm

2 stops27h 27m

Lambert-St Louis

Tue 4/28

7:45 am-10:11 am

2 stops27h 26m

$405
Quickest round-trip

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sun 4/19

7:55 am-10:28 pm

1 stop13h 33m

Lambert-St Louis

Wed 4/29

9:10 am-8:19 pm

2 stops12h 09m

$413

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 5/13

7:55 am-10:45 pm

2 stops37h 50m

Lambert-St Louis

Tue 6/2

5:41 pm-12:21 pm

2 stops19h 40m

$454

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 5/14

7:55 am-8:39 am

2 stops23h 44m

Lambert-St Louis

Wed 6/3

6:00 am-7:37 pm

2 stops14h 37m

$455
Cheapest one-way

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 4/16

7:55 am-10:28 pm

1 stop13h 33m

$230

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 4/9

11:38 am-11:25 pm

1 stop10h 47m

$235

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 8/27

1:21 pm-11:37 pm

1 stop9h 16m

$257

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 6/24

12:44 pm-11:35 pm

1 stop9h 51m

$262

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 4/9

1:25 pm-3:48 pm

2 stops25h 23m

$263
Quickest one-way

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sat 6/27

12:30 am-10:07 am

1 stop8h 37m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/14

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

Compare providers for flights from San José to St. Louis

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 San José to St. Louis in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San José-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San José-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San José-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San José-St. Louis 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 San José-St. Louis 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 San José to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from San José 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 San José to St. Louis

What is the cheapest month to book a flight from San José to St. Louis?

Currently, April is the cheapest month in which you can book a flight from San José to St. Louis (average of $220). Flying from San José to St. Louis in January is currently the most expensive (average of $573). 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.

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 March 16, 2026.
Read through reviews of airlines operating flights from San José to St. Louis, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,428 reviews

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,428 reviews
United Airlines
7.4
Good
9,428 reviews

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
American Airlines
7.1
Good
11,467 reviews
United Airlines
7.4
Good
9,428 reviews

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

Find useful and relevant information for your journey from San José to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San José to St. Louis?

    There are many flights that can get you from San José to St. Louis in 27h 27m. Fly via United Airlines to get the fastest option. Airlines will cover a distance of 2022 mi.

  • What are the cheapest airlines flying from San José to St. Louis round-trip?

    Currently priced at $274, American Airlines will fly you from San José to St. Louis and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $306. American Airlines is priced at 41% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from San José to St. Louis that include hotel bookings?

    Yes. In addition to deals on San José to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San José to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San José to St. Louis.

  • Can I find deals for business class flights from San José to St. Louis?

    Yes. Cheapflights offers flight deals from San José to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San José to St. Louis?

    Currently, April is the cheapest month in which you can book a flight from San José to St. Louis (average of $220). Flying from San José to St. Louis in January is currently the most expensive (average of $573). 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.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San José to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
San José to Kansas City flights
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Top 2 airlines flying from San José to St. Louis

Discover the top 2 airlines that operate flights from San José 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 March 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$274Average$468FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$306Average$424FlexibilityNo cancel feeOn-time69%

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