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San Jose

$125+ 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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJC
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June, 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 June 12, 2025.

Round-trip from

$275
(Mytrip)

One-way from

$125
(Mytrip)

Popular in

January

Cheapest in

November

Average price

$322
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. 5% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/10. 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.
Mon 6/3011:28 amSTL - SJC
2 stops24h 38mSpirit Airlines
Thu 7/101:10 pmSJC - STL
2 stops18h 42mSpirit Airlines
Deal found 6/10$275
This Southwest deal was found by Cheapflights users on 6/11. 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.
Tue 10/215:20 pmSTL - SJC
1 stop5h 45mSouthwest
Thu 10/306:45 amSJC - STL
1 stop6h 30mSouthwest
Deal found 6/11$292
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 8/67:01 amSTL - SJC
1 stop7h 18mAmerican Airlines
Tue 8/196:00 amSJC - STL
1 stop8h 47mAmerican Airlines
Deal found 6/11$297
This Delta deal was found by Cheapflights users on 6/10. 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.
Tue 7/87:15 pmSTL - SJC
1 stop6h 21mDelta
Tue 7/1511:00 pmSJC - STL
1 stop8h 41mDelta
Deal found 6/10$319
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 10/185:15 amSTL - SJC
1 stop6h 37mUnited Airlines
Sat 10/258:45 amSJC - STL
1 stop5h 47mUnited Airlines
Deal found 6/11$323
This Mytrip deal was found by Cheapflights users on 6/11. 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.
Tue 7/229:50 amSTL - SJC
3 stops26h 46mMultiple Airlines
Wed 7/306:30 amSJC - STL
2 stops25h 22mMultiple Airlines
Deal found 6/11$356
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Mon 7/217:32 pmSTL - SJC
1 stop15h 38mAlaska Airlines
Thu 7/311:04 pmSJC - STL
1 stop8h 55mAlaska Airlines
Deal found 6/11$378
This FlightHub deal was found by Cheapflights users on 6/10. 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.
Thu 7/102:27 pmSTL - SJC
1 stop24h 50mFrontier
Thu 7/177:00 pmSJC - STL
1 stop16h 42mFrontier
Deal found 6/10$391
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/143:24 pmSTL - SJC
1 stop7h 27mHawaiian Airlines
Sat 6/2112:02 pmSJC - STL
1 stop9h 57mHawaiian Airlines
Deal found 6/10$482

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 June 12, 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

Mon 6/30

11:28 am-10:06 am

2 stops24h 38m

San Jose

Thu 7/10

1:10 pm-9:52 am

2 stops18h 42m

$275

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Tue 10/21

5:20 pm-9:05 pm

1 stop5h 45m

San Jose

Thu 10/30

6:45 am-3:15 pm

1 stop6h 30m

$292

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Wed 8/6

7:01 am-12:19 pm

1 stop7h 18m

San Jose

Tue 8/19

6:00 am-4:47 pm

1 stop8h 47m

$297

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Tue 7/8

7:15 pm-11:36 pm

1 stop6h 21m

San Jose

Tue 7/15

11:00 pm-9:41 am

1 stop8h 41m

$319

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Sat 10/18

5:15 am-9:52 am

1 stop6h 37m

San Jose

Sat 10/25

8:45 am-4:32 pm

1 stop5h 47m

$323

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Tue 7/22

9:50 am-10:36 am

3 stops26h 46m

San Jose

Wed 7/30

6:30 am-9:52 am

2 stops25h 22m

$356

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Mon 7/21

7:32 pm-9:10 am

1 stop15h 38m

San Jose

Thu 7/31

1:04 pm-11:59 pm

1 stop8h 55m

$378

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Thu 7/10

2:27 pm-1:17 pm

1 stop24h 50m

San Jose

Thu 7/17

7:00 pm-1:42 pm

1 stop16h 42m

$391

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Mon 6/30

11:28 am-10:06 am

2 stops24h 38m

$125

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Wed 9/10

3:35 pm-9:00 pm

1 stop7h 25m

$140

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 17 results
1
2

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 June 9, 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 $255). Flying from St. Louis to San Jose in June is currently the most expensive (average of $344). 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 June 12, 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.

Rainfall in San Jose by month

Plan your trip to San Jose by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Jose ranges from 0.0 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. July is typically the driest time to visit San Jose when rainfall is around 0.0 in.

Temperature in San Jose by month

Plan your trip to San Jose by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Jose, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

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 June 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from St. Louis to San Jose by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

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

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

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
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

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 5h 45m 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 Spirit Airlines. Our recent data shows that you can find tickets from as low as $275 on this airline. Additional options worth looking into are Southwest and American Airlines, starting at $292 and $297 round-trip. Users have found that Spirit Airlines is 19% 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 ($125), Hawaiian Airlines ($140), and Southwest ($144).

  • 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 $255). Flying from St. Louis to San Jose in June is currently the most expensive (average of $344). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$167FlexibilityNo cancel feeOn-time62%
DeltaCheapest$236Average$326FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$246Average$337FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$358FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$256Average$403FlexibilityNo cancel feeOn-time63%

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