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San Jose

$108+ Cheap flights from St. Louis to San Jose (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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJC
jul. 23 — jul. 301
mié. 7/23
mié. 7/30
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to San Jose are usually found in November or August, booked 89 days in advance, depart on a Monday or Tuesday and return on a Monday

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 julio 18, 2025.

Round-trip from

$276
(CheapOair)

One-way from

$108
(Mytrip)

Popular in

January

Cheapest in

November

Average price

$358

Good one-way deal

$239 or less
From Lambert-St Louis to San Jose
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One-way flight from Lambert-St Louis to San Jose
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Highest demand for flights based on searches. 3% potential increase in price ($13 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a one-way flight from Lambert-St Louis to San Jose.
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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 julio 18, 2025.

This CheapOair deal was found by Cheapflights users on 7/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/142:27 pmSTL - SJC
1 stop24h 50mFrontier
jue. 8/216:27 pmSJC - STL
1 stop17h 19mFrontier
Deal found 7/16$276
This Mytrip deal was found by Cheapflights users on 7/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/142:30 pmSTL - SJC
3 stops23h 14mSpirit Airlines
jue. 8/2112:39 pmSJC - STL
2 stops22h 53mSpirit Airlines
Deal found 7/16$306
This Delta deal was found by Cheapflights users on 7/16. 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.
mié. 8/62:23 pmSTL - SJC
1 stop6h 07mDelta
mar. 8/196:25 amSJC - STL
1 stop6h 05mDelta
Deal found 7/16$313
This American Airlines deal was found by Cheapflights users on 7/16. 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.
mié. 8/67:01 amSTL - SJC
1 stop7h 18mAmerican Airlines
mar. 8/196:00 amSJC - STL
2 stops8h 47mAmerican Airlines
Deal found 7/16$335
This Alaska Airlines deal was found by Cheapflights users on 7/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/76:33 amSTL - SJC
1 stop10h 17mAlaska Airlines
mar. 10/148:00 amSJC - STL
2 stops14h 03mAlaska Airlines
Deal found 7/17$336
This Southwest deal was found by Cheapflights users on 7/16. 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. 10/84:55 pmSTL - SJC
1 stop6h 10mSouthwest
mar. 10/144:30 pmSJC - STL
1 stop5h 40mSouthwest
Deal found 7/16$342
This Mytrip deal was found by Cheapflights users on 7/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/252:26 pmSTL - SJC
3 stops26h 55mMultiple Airlines
lun. 9/294:16 pmSJC - STL
3 stops17h 54mMultiple Airlines
Deal found 7/16$391

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 julio 18, 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. 8/14

2:27 pm-1:17 pm

1 stop24h 50m

San Jose

jue. 8/21

6:27 pm-1:46 pm

1 stop17h 19m

$276

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

jue. 8/14

2:30 pm-11:44 am

3 stops23h 14m

San Jose

jue. 8/21

12:39 pm-1:32 pm

2 stops22h 53m

$306

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

mié. 8/6

2:23 pm-6:30 pm

1 stop6h 07m

San Jose

mar. 8/19

6:25 am-2:30 pm

1 stop6h 05m

$313

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

mié. 8/6

7:01 am-12:19 pm

1 stop7h 18m

San Jose

mar. 8/19

6:00 am-4:47 pm

2 stops8h 47m

$335

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

mar. 10/7

6:33 am-2:50 pm

1 stop10h 17m

San Jose

mar. 10/14

8:00 am-12:03 am

2 stops14h 03m

$336

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

mié. 10/8

4:55 pm-9:05 pm

1 stop6h 10m

San Jose

mar. 10/14

4:30 pm-12:10 am

1 stop5h 40m

$342

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

jue. 9/25

2:26 pm-3:21 pm

3 stops26h 55m

San Jose

lun. 9/29

4:16 pm-12:10 pm

3 stops17h 54m

$391

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

jue. 9/25

12:05 pm-12:24 am

2 stops14h 19m

$108

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

mar. 9/2

3:35 pm-10:23 am

2 stops20h 48m

$145

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

mié. 8/20

7:54 pm-11:26 am

1 stop17h 32m

$155

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/17

Showing 1-10 of 15 results
1
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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?

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 July 11, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to San Jose, you should look to book at least 85 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 St. Louis to San Jose?

Currently, September is the cheapest month in which you can book a flight from St. Louis to San Jose (average of $254). Flying from St. Louis to San Jose in June is currently the most expensive (average of $359). 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 julio 18, 2025.

When flying from St. Louis to San Jose, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 62% versus a flight in the morning.

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 julio 18, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,958 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,581 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    To fly from St. Louis to San Jose, you need to book a flight from Lambert-St Louis (STL) to San Jose (SJC). Nonstop flights to San Jose from Lambert-St Louis take 4h 10m on average. When it comes time to book airfare, you have a few options: there is 1 outbound flight from Lambert-St Louis to San Jose offered by 5 different airlines.

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

    Our cheapest airline available from St. Louis to San Jose is Frontier. Our recent data shows that you can find tickets from as low as $276 on this airline. Additional options worth looking into are Spirit Airlines and Delta, starting at $306 and $313 round-trip. Users have found that Frontier is 20% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from St. Louis to San Jose are Spirit Airlines ($108), Alaska Airlines ($145), and Frontier ($155).

  • What are the cheapest flights from St. Louis to San Jose?

    Looking at all options, your cheapest flight can be booked for $239. While the most popular route (Lambert-St Louis - San Jose) can be booked for $295 on average our data indicates $239 when flying from St. Louis to San Jose.

  • 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?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to San Jose (average of $254). Flying from St. Louis to San Jose in June is currently the most expensive (average of $359). 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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Top 5 airlines flying from St. Louis to San Jose

Discover the top 5 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 julio 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$167FlexibilityNo cancel feeOn-time62%
DeltaCheapest$236Average$328FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$246Average$336FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$355FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$256Average$410FlexibilityNo cancel feeOn-time63%

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