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San Jose

$100+ Cheap flights from St. Louis to San Jose, CA (STL - SJC)

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJC
nov. 19 — nov. 261
mié. 11/19
mié. 11/26
1 adult, Economy
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Find flight deals from St. Louis to San Jose

Cheapest flights from St. Louis to San Jose
Explore the most affordable flight options available from St. Louis to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 20, 2025.

This Delta deal was found by Cheapflights users on 10/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/116:15 amSTL - SJC
1 stop8h 16mDelta
sáb. 1/176:25 pmSJC - STL
2 stops13h 19mDelta
Deal found 10/20$261
This Delta deal was found by Cheapflights users on 10/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/136:34 amSTL - SJC
2 stops11h 21mDelta
lun. 11/177:46 pmSJC - STL
2 stops11h 09mDelta
Deal found 10/20$274
This Kiwi.com deal was found by Cheapflights users on 10/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/308:40 pmSTL - SJC
2 stops22h 54mFrontier
lun. 11/312:27 pmSJC - STL
1 stop18h 40mFrontier
Deal found 10/18$288
This Delta deal was found by Cheapflights users on 10/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/186:00 amSTL - SJC
2 stops11h 55mDelta
dom. 11/237:46 pmSJC - STL
2 stops11h 09mDelta
Deal found 10/20$294
This Delta deal was found by Cheapflights users on 10/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/1112:49 pmSTL - SJC
1 stop9h 46mDelta
lun. 11/177:46 pmSJC - STL
2 stops11h 09mDelta
Deal found 10/19$308
This Southwest deal was found by Cheapflights users on 10/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/204:20 pmSTL - SJC
1 stop7h 55mSouthwest
mar. 12/233:35 pmSJC - STL
2 stops7h 10mSouthwest
Deal found 10/19$318
This Southwest deal was found by Cheapflights users on 10/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/243:15 pmSTL - SJC
1 stop8h 20mSouthwest
dom. 12/284:10 pmSJC - STL
1 stop6h 35mSouthwest
Deal found 10/20$322

Cheap flight deals from St. Louis to San Jose

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to San Jose (SJC). 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 octubre 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$261
(Delta)

One-way from

$100
(Kiwi.com)

Popular in

September

Cheapest in

February

Average price

$381
Provider with most accurate pricing for Lambert-St Louis-San Jose flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-San Jose flights.
Search Deals
From Lambert-St Louis to San Jose
Search Deals
One-way flight from Lambert-St Louis to San Jose
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to San Jose 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 octubre 20, 2025.
Use the filters below to find and compare flights from St. Louis to San Jose that are best for you.

Fly from

St. Louis

Fly to

San Jose

Route

Depart

Return

Price

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

jue. 11/13

6:34 am-3:55 pm

2 stops11h 21m

San Jose

lun. 11/17

7:46 pm-8:55 am

2 stops11h 09m

$274

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

sáb. 11/15

6:34 am-3:55 pm

2 stops11h 21m

San Jose

lun. 11/17

7:46 pm-8:55 am

2 stops11h 09m

$274

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

jue. 12/11

6:00 am-3:54 pm

2 stops11h 54m

San Jose

sáb. 1/17

6:25 pm-9:44 am

2 stops13h 19m

$284

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

jue. 10/30

8:40 pm-5:34 pm

2 stops22h 54m

San Jose

lun. 11/3

12:27 pm-9:07 am

1 stop18h 40m

$288

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

mar. 11/11

6:00 am-11:32 am

1 stop7h 32m

San Jose

lun. 11/17

7:46 pm-8:55 am

2 stops11h 09m

$308

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

jue. 11/13

6:00 am-3:55 pm

2 stops11h 55m

San Jose

dom. 11/16

10:25 pm-8:28 am

1 stop8h 03m

$318

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

mar. 11/18

2:21 pm-6:24 pm

1 stop6h 03m

San Jose

dom. 11/23

7:46 pm-8:55 am

2 stops11h 09m

$328

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

mar. 11/11

7:00 am-8:00 pm

1 stop15h 00m

San Jose

lun. 11/17

2:39 pm-11:59 pm

1 stop7h 20m

$332

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

mar. 11/11

7:00 am-6:53 pm

1 stop13h 53m

San Jose

dom. 11/16

8:10 am-11:59 pm

1 stop13h 49m

$332

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

lun. 11/17

6:34 am-12:25 pm

1 stop7h 51m

San Jose

lun. 11/24

11:40 am-12:46 am

2 stops11h 06m

$336

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Showing 1-10 of 20 results
1
2

Compare providers for flights from St. Louis to San Jose

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 Jose in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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 St. Louis-San Jose, California 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 Jose, California flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-San Jose, California flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-San Jose, California 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 Jose, California 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 Jose

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

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to San Jose. Price data was last updated on October 17, 2025.

The best time to book flights from St. Louis to San Jose, California is 65 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from St. Louis to San Jose, California?

Currently, August is the cheapest month in which you can book a flight from St. Louis to San Jose, California (average of $123). Flying from St. Louis to San Jose, California in May is currently the most expensive (average of $256). 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 STL to SJC?

Find hourly flight availability from St. Louis to San Jose. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 20, 2025.

When flying from St. Louis to San Jose, California, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 81% versus a flight at noon.

Reviews of airlines servicing San Jose

Get insights into the airlines that provide service to San Jose. 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 Jose. Reviews last updated octubre 20, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from St. Louis to San Jose have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,239 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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
4,239 reviews
Southwest
8.0
Very good
4,239 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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
7.9
Good
7,978 reviews
Southwest
8.0
Very good
4,239 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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
8,991 reviews
Southwest
8.0
Very good
4,239 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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
11,024 reviews
Southwest
8.0
Very good
4,239 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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 St. Louis to San Jose. 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 St. Louis to San Jose, California?

    For as low as $274, Delta can have you in San Jose, California from St. Louis in 11h 21m. Airlines will cover a distance of 1710 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, American Airlines ($246), United Airlines ($246), and Delta ($256) offers the cheapest pricing from St. Louis to San Jose, California. Users have found that American Airlines is 34% cheaper than the other options available to this destination.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from St. Louis to San Jose, California (average of $123). Flying from St. Louis to San Jose, California in May is currently the most expensive (average of $256). 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

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Alternative routes for St. Louis to San Jose

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from St. Louis to San Jose

Discover the top 4 airlines that operate flights from St. Louis to San Jose. 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 octubre 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$246Average$339FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$369FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$338FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$256Average$413FlexibilityNo cancel feeOn-time63%

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