HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$282+ 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — STL
Sep 1 — Sep 81
Tue 9/1
Tue 9/8
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San José to St. Louis 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 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 2, 2026.

This United Airlines deal was found by Cheapflights users on 7/29. 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 9/157:55 am
SJO
-
STL
2 stops27h 02m
United Airlines
Wed 9/238:35 am
STL
-
SJO
1 stop12h 02m
United Airlines
Deal found 7/29$504
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.
Fri 11/132:30 pm
SJO
-
STL
1 stop9h 26m
Delta
Tue 11/1710:00 am
STL
-
SJO
1 stop12h 15m
Delta
Deal found 7/31$506
This Southwest deal was found by Cheapflights users on 8/2. 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.
Wed 10/149:00 am
SJO
-
STL
1 stop10h 00m
Southwest
Tue 10/201:45 pm
STL
-
SJO
1 stop6h 55m
Southwest
Deal found 8/2$515
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.
Fri 11/1311:28 pm
SJO
-
STL
2 stops15h 02m
United Airlines
Tue 11/175:00 am
STL
-
SJO
2 stops14h 53m
United Airlines
Deal found 7/31$529
This United Airlines deal was found by Cheapflights users on 8/2. 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 10/151:25 pm
SJO
-
STL
2 stops21h 48m
United Airlines
Mon 10/196:15 am
STL
-
SJO
1 stop7h 06m
United Airlines
Deal found 8/2$538
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:55 am
SJO
-
STL
2 stops27h 02m
United Airlines
Tue 9/1511:15 am
STL
-
SJO
2 stops26h 06m
United Airlines
Deal found 8/1$555
This United Airlines deal was found by Cheapflights users on 7/29. 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 8/261:25 pm
SJO
-
STL
2 stops24h 32m
United Airlines
Wed 9/26:15 am
STL
-
SJO
1 stop14h 22m
United Airlines
Deal found 7/29$558
This Faresmojo 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:00 am
SJO
-
STL
1 stop11h 01m
JetBlue
Mon 11/3011:51 am
STL
-
SJO
1 stop10h 24m
JetBlue
Deal found 7/30$565

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 August 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$504
(United Airlines)

One-way from

$282
(Delta)

Popular in

January

Cheapest in

September

Average price

$583
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. 0% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 August 2, 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

Tue 9/15

7:55 am-11:57 am

2 stops27h 02m

Lambert-St Louis

Wed 9/23

8:35 am-7:37 pm

1 stop12h 02m

$504
Quickest round-trip

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 10/14

9:00 am-8:00 pm

1 stop10h 00m

Lambert-St Louis

Tue 10/20

1:45 pm-7:40 pm

1 stop6h 55m

$515

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 10/15

1:25 pm-12:13 pm

2 stops21h 48m

Lambert-St Louis

Mon 10/19

6:15 am-12:21 pm

1 stop7h 06m

$538

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sat 1/23

1:15 am-9:42 am

1 stop8h 27m

Lambert-St Louis

Wed 1/27

7:04 pm-12:56 pm

1 stop17h 52m

$546

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 11/25

7:00 am-11:56 pm

1 stop16h 56m

Lambert-St Louis

Mon 11/30

6:00 am-1:05 pm

1 stop7h 05m

$581

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 8/26

1:25 pm-12:02 pm

2 stops21h 37m

Lambert-St Louis

Wed 9/2

7:25 am-7:37 pm

2 stops13h 12m

$590

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sat 12/19

2:25 pm-10:19 pm

1 stop7h 54m

Lambert-St Louis

Wed 12/30

6:15 am-8:39 pm

1 stop14h 24m

$603
Cheapest one-way

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 1/14

7:05 am-6:01 pm

1 stop10h 56m

$282
Quickest one-way

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 1/15

7:05 am-2:43 pm

1 stop7h 38m

$282

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Tue 11/24

12:30 am-9:30 am

1 stop9h 00m

$292

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 12 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 August.
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, September is the cheapest month in which you can book a flight from San José to St. Louis (average of $437). Flying from San José to St. Louis in January is currently the most expensive (average of $719). 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 August 2, 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
10,061 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
United Airlines
7.4
Good
10,061 reviews
United Airlines
7.4
Good
10,061 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
American Airlines
7.1
Good
11,846 reviews
United Airlines
7.4
Good
10,061 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

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 10h. Fly via United Airlines or Southwest to get the fastest option. Airlines will cover a distance of 2022 mi. This flight may include one or multiple stops.

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

    Currently priced at $379, 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 $400. American Airlines is priced at 31% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from San José to St. Louis one-way?

    One-way options have recently been found by users for as low as $202 on Southwest. Other airlines that offer cheap prices include American Airlines from $227 and United Airlines from $255 one-way.

  • 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, September is the cheapest month in which you can book a flight from San José to St. Louis (average of $437). Flying from San José to St. Louis in January is currently the most expensive (average of $719). 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
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
Liberia to Kansas City flights

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 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$379Average$488FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$400Average$549FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.