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St. Louis

$157+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — STL
aug. 25 — sep. 11
ma. 8/25
ma. 9/1
1 adult, Economy
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Cheap 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 august 20, 2025.

Round-trip from

$275
(Kiwi.com)

One-way from

$168
(KAYAK)

Popular in

April

Cheapest in

August

Average price

$394
From San José Juan Santamaria Intl to Lambert-St Louis
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One-way flight from San José Juan Santamaria Intl to Lambert-St Louis
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Highest demand for flights based on searches. 12% potential increase in price ($67 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 august 20, 2025.

This KAYAK deal was found by Cheapflights users on 8/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
on. 9/312:18 pmSJO - STL
1 stop20h 22mSpirit Airlines
ti. 10/1410:57 amSTL - SJO
1 stop25h 33mSpirit Airlines
Deal found 8/20$275
This United Airlines deal was found by Cheapflights users on 8/18. 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.
ma. 9/151:30 pmSJO - STL
1 stop28h 28mUnited Airlines
ma. 9/224:32 pmSTL - SJO
1 stop20h 54mUnited Airlines
Deal found 8/18$290
This American Airlines deal was found by Cheapflights users on 8/18. 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.
lø. 10/256:44 amSJO - STL
2 stops14h 22mAmerican Airlines
lø. 11/18:00 pmSTL - SJO
2 stops17h 22mAmerican Airlines
Deal found 8/18$304
This United Airlines deal was found by Cheapflights users on 8/18. 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.
lø. 11/111:35 amSJO - STL
2 stops23h 16mUnited Airlines
lø. 11/86:43 pmSTL - SJO
2 stops16h 42mUnited Airlines
Deal found 8/18$311
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
lø. 9/612:19 pmSJO - STL
1 stop20h 21mSpirit Airlines
lø. 10/117:00 pmSTL - SJO
1 stop17h 30mSpirit Airlines
Deal found 8/20$314
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
on. 9/312:18 pmSJO - STL
1 stop20h 22mSpirit Airlines
lø. 10/117:00 pmSTL - SJO
1 stop17h 30mSpirit Airlines
Deal found 8/20$318
This United Airlines deal was found by Cheapflights users on 8/19. 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.
ti. 9/307:55 amSJO - STL
1 stop13h 05mUnited Airlines
fr. 10/35:11 pmSTL - SJO
1 stop20h 15mUnited Airlines
Deal found 8/19$319
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
on. 9/312:18 pmSJO - STL
1 stop20h 22mSpirit Airlines
to. 10/1610:57 amSTL - SJO
2 stops24h 44mSpirit Airlines
Deal found 8/20$322

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 august 20, 2025.
Use the filters below to find and compare flights from San José to St. Louis that are best for you.

Fly from

San José

Fly to

St. Louis

Route

Depart

Return

Price

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

lø. 9/6

12:19 pm-9:40 am

1 stop20h 21m

Lambert-St Louis

ti. 10/14

10:57 am-11:30 am

1 stop25h 33m

$275

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

on. 9/3

12:18 pm-9:40 am

1 stop20h 22m

Lambert-St Louis

ti. 10/14

10:57 am-11:30 am

1 stop25h 33m

$275

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

ma. 9/15

1:30 pm-2:19 pm

2 stops23h 49m

Lambert-St Louis

ma. 9/22

4:32 pm-7:37 pm

1 stop28h 05m

$290

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

on. 10/1

7:55 am-10:00 pm

1 stop13h 05m

Lambert-St Louis

fr. 10/3

5:11 pm-12:26 pm

1 stop20h 15m

$290

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

ti. 9/16

1:30 pm-6:58 pm

1 stop28h 28m

Lambert-St Louis

lø. 9/20

6:15 am-12:26 pm

1 stop7h 11m

$290

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

on. 11/12

1:19 pm-11:01 am

1 stop21h 42m

$157

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

on. 11/12

8:45 am-3:46 pm

2 stops31h 01m

$164

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

on. 9/3

12:18 pm-9:40 am

1 stop20h 22m

$168

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

lø. 10/18

12:35 pm-10:02 am

1 stop20h 27m

$178

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

lø. 10/18

7:55 am-10:49 am

2 stops25h 54m

$180

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 15 results
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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, San José Province to St. Louis?

Currently, August is the cheapest month in which you can book a flight from San José, San José Province to St. Louis (average of $311). Flying from San José, San José Province to St. Louis in March is currently the most expensive (average of $356). 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 SJO to STL?

Find hourly flight availability from San José 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 august 20, 2025.

A simple way to save on the total cost of your ticket is to fly from San José, San José Province to St. Louis in the morning. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight in the afternoon.

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 august 20, 2025.
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
8,928 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,928 reviews
United Airlines
7.4
Good
8,928 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,928 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

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, San José Province to St. Louis?

    There are many flights that can get you from San José, San José Province to St. Louis in 20h 21m. Fly via Spirit Airlines or United Airlines to get the fastest option. San José, San José Province and St. Louis are separated by a distance of 2022 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $321, American Airlines will fly you from San José, San José Province 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 $328. Users have found that American Airlines is 34% cheaper than the other options available to this destination.

  • 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, San José Province to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from San José, San José Province to St. Louis (average of $311). Flying from San José, San José Province to St. Louis in March is currently the most expensive (average of $356). 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
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Farmington
Festus

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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.
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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 august 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$321Average$432FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$328Average$465FlexibilityNo cancel feeOn-time69%

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