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$123+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — STL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 July, 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 June 12, 2025.

Round-trip from

$277
(Mytrip)

One-way from

$123
(Mytrip)

Popular in

December

Cheapest in

August

Average price

$474
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. 9% potential increase in price ($39 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 June 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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/12. 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.
Sun 9/1410:19 amSJC - STL
2 stops19h 30mSpirit Airlines
Fri 9/198:44 amSTL - SJC
2 stops40h 33mSpirit Airlines
Deal found 6/12$277
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/38:00 amSJC - STL
1 stop7h 34mAlaska Airlines
Wed 9/176:00 amSTL - SJC
1 stop7h 57mAlaska Airlines
Deal found 6/10$296
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.
Mon 8/112:55 pmSJC - STL
1 stop6h 30mSouthwest
Tue 8/194:45 pmSTL - SJC
1 stop6h 20mSouthwest
Deal found 6/11$297
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 10/2912:52 pmSJC - STL
2 stops8h 57mAmerican Airlines
Tue 11/44:07 pmSTL - SJC
1 stop6h 36mAmerican Airlines
Deal found 6/11$302
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 9/99:44 amSJC - STL
1 stop6h 03mDelta
Tue 9/163:30 pmSTL - SJC
1 stop7h 30mDelta
Deal found 6/10$319
This Mytrip deal was found by Cheapflights users on 6/9. 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 7/86:00 amSJC - STL
2 stops26h 29mMultiple Airlines
Tue 7/159:50 amSTL - SJC
3 stops26h 46mMultiple Airlines
Deal found 6/9$339
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/87:58 pmSJC - STL
2 stops11h 09mFrontier
Mon 9/152:19 pmSTL - SJC
1 stop6h 39mFrontier
Deal found 6/10$347
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 10/183:55 pmSJC - STL
1 stop6h 03mUnited Airlines
Mon 10/274:43 pmSTL - SJC
1 stop6h 10mUnited Airlines
Deal found 6/11$400

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 June 12, 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

10:19 am-7:49 am

2 stops19h 30m

Lambert-St Louis

Fri 9/19

8:44 am-11:17 pm

2 stops40h 33m

$277

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Wed 9/3

8:00 am-5:34 pm

1 stop7h 34m

Lambert-St Louis

Wed 9/17

6:00 am-11:57 am

1 stop7h 57m

$296

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Mon 8/11

2:55 pm-11:25 pm

1 stop6h 30m

Lambert-St Louis

Tue 8/19

4:45 pm-9:05 pm

1 stop6h 20m

$297

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Wed 10/29

12:52 pm-11:49 pm

2 stops8h 57m

Lambert-St Louis

Tue 11/4

4:07 pm-8:43 pm

1 stop6h 36m

$302

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Tue 9/9

9:44 am-5:47 pm

1 stop6h 03m

Lambert-St Louis

Tue 9/16

3:30 pm-9:00 pm

1 stop7h 30m

$319

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Tue 7/8

6:00 am-10:29 am

2 stops26h 29m

Lambert-St Louis

Tue 7/15

9:50 am-10:36 am

3 stops26h 46m

$339

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Mon 9/8

7:58 pm-9:07 am

2 stops11h 09m

Lambert-St Louis

Mon 9/15

2:19 pm-6:58 pm

1 stop6h 39m

$347

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Sat 10/18

3:55 pm-11:58 pm

1 stop6h 03m

Lambert-St Louis

Mon 10/27

4:43 pm-8:53 pm

1 stop6h 10m

$400

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Sat 9/20

10:19 am-7:49 am

2 stops19h 30m

$123

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Thu 9/11

12:17 pm-9:07 am

1 stop18h 50m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 17 results
1
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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 June 9, 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 June 12, 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.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 June 12, 2025.
To help decide which airline to fly from San Jose to St. Louis, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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 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. 3h 50m 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?

    Spirit Airlines, at $277, was found to be the cheapest airline from San Jose to St. Louis.Alternate airlines to your destination round-trip include Alaska Airlines and Southwest. Spirit Airlines is currently priced 28% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $123. Frontier flights start at $125 while deals on Hawaiian Airlines start at $140 one-way.

  • 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 San Jose?

Book flights to San Jose if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Festus
Alton
Farmington

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$218FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$246Average$338FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$371FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$364FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$332Average$437FlexibilityNo cancel feeOn-time63%

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