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$89+ Cheap flights from San Jose to St. Louis (SJC - 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — STL
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
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Cheapflights Tip: The best prices from San Jose to Lambert-St Louis are usually found in August or September, booked 15 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from San Jose to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) 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 16, 2025.

Round-trip from

$181
(FlightHub)

One-way from

$89
(FlightHub)

Popular in

December

Cheapest in

August

Average price

$328
From San Jose to Lambert-St Louis
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One-way flight from San Jose to Lambert-St Louis
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Highest demand for flights based on searches. 8% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 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 Jose to St. Louis

Cheapest flights from San Jose to St. Louis
Explore the most affordable flight options available from San Jose to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1412:26 pmSJC - STL
1 stop18h 40mFrontier
Sun 9/217:55 pmSTL - SJC
1 stop17h 35mFrontier
Deal found 8/15$181
This Booking.com deal was found by Cheapflights users on 8/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/112:14 pmSJC - STL
1 stop16h 52mFrontier
Thu 9/1810:49 amSTL - SJC
2 stops26h 41mFrontier
Deal found 8/14$207
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1012:35 pmSJC - STL
1 stop18h 32mFrontier
Sun 10/127:52 pmSTL - SJC
1 stop17h 40mFrontier
Deal found 8/15$215
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1912:25 pmSJC - STL
1 stop18h 41mFrontier
Sun 9/212:38 pmSTL - SJC
1 stop29h 07mFrontier
Deal found 8/15$217
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1912:25 pmSJC - STL
1 stop18h 41mMultiple Airlines
Sun 9/217:55 pmSTL - SJC
2 stops16h 50mMultiple Airlines
Deal found 8/15$240
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1412:26 pmSJC - STL
1 stop18h 40mMultiple Airlines
Sun 9/217:55 pmSTL - SJC
2 stops16h 50mMultiple Airlines
Deal found 8/15$263
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1012:35 pmSJC - STL
1 stop18h 32mMultiple Airlines
Sun 10/127:52 pmSTL - SJC
2 stops13h 26mMultiple Airlines
Deal found 8/15$276
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/235:55 amSJC - STL
2 stops25h 12mMultiple Airlines
Mon 10/279:59 pmSTL - SJC
1 stop11h 19mMultiple Airlines
Deal found 8/13$282

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Jose 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 16, 2025.
Use the filters below to find and compare flights from San Jose to St. Louis that are best for you.

Fly from

San Jose

Fly to

St. Louis

Route

Depart

Return

Price

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Sun 9/14

12:26 pm-9:06 am

1 stop18h 40m

Lambert-St Louis

Sun 9/21

7:55 pm-11:30 am

1 stop17h 35m

$181

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Thu 9/11

2:14 pm-9:06 am

1 stop16h 52m

Lambert-St Louis

Thu 9/18

10:49 am-11:30 am

2 stops26h 41m

$207

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Fri 10/10

12:35 pm-9:07 am

1 stop18h 32m

Lambert-St Louis

Sun 10/12

7:52 pm-11:32 am

1 stop17h 40m

$215

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Fri 9/19

12:25 pm-9:06 am

1 stop18h 41m

Lambert-St Louis

Sun 9/21

2:38 pm-5:45 pm

1 stop29h 07m

$217

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Fri 9/19

12:25 pm-9:06 am

1 stop18h 41m

Lambert-St Louis

Sun 9/21

7:55 pm-10:45 am

2 stops16h 50m

$240

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Sun 9/14

12:26 pm-9:06 am

1 stop18h 40m

Lambert-St Louis

Sun 9/21

7:55 pm-10:45 am

2 stops16h 50m

$263

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Fri 10/10

12:35 pm-9:07 am

1 stop18h 32m

Lambert-St Louis

Sun 10/12

7:52 pm-7:18 am

2 stops13h 26m

$276

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Sun 9/21

12:26 pm-9:06 am

1 stop18h 40m

$89

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Fri 11/14

12:27 pm-9:07 am

1 stop18h 40m

$89

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Sun 10/5

12:26 pm-9:06 am

1 stop18h 40m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 13 results
1
2

Best time to book a flight from San Jose to St. Louis

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

How far ahead should I book a flight from San Jose to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from San Jose to St. Louis. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from San Jose to St. Louis, you should look to book at least 15 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 San Jose to St. Louis?

Currently, August is the cheapest month in which you can book a flight from San Jose to St. Louis (average of $311). Flying from San Jose 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 SJC to STL?

Find hourly flight availability from San Jose 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 16, 2025.

It’s typically best to fly out from San Jose to St. Louis in the afternoon. Doing so could potentially save you 36% on the flight price compared to flying at noon, which is usually more expensive.

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 16, 2025.
Read through reviews of airlines operating flights from San Jose to St. Louis, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,985 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,916 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,211 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

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

  • What airports do I use to fly from San Jose to St. Louis?

    Lambert-St Louis is the airport most travelers will use when flying to St. Louis from San Jose. Booking flights from San Jose (SJC) to Lambert-St Louis (STL) should be relatively easy as there is 1 daily flight to St. Louis from 5 different airlines. 5h 34m is how long a flight from San Jose to Lambert-St Louis will take if you book a nonstop flight.

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

    Frontier, at $118, was found to be the cheapest airline from San Jose to St. Louis.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Frontier is currently priced 69% below the average price you’ll pay for this route.

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

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

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

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

    Yes. Cheapflights offers flight deals from San Jose 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 Jose to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from San Jose to St. Louis (average of $311). Flying from San Jose 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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Top 5 airlines flying from San Jose to St. Louis

Discover the top 5 airlines that operate flights from San Jose 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$218FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$246Average$368FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$369FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$373FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$332Average$444FlexibilityNo cancel feeOn-time63%

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