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$119+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — STL
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
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 July 1, 2025.

Round-trip from

$290
(Mytrip)

One-way from

$119
(Mytrip)

Popular in

December

Cheapest in

August

Average price

$344

Good round-trip deal

$292 or less
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 ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 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 round-trip flight from San Jose to Lambert-St Louis.
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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 July 1, 2025.

This Mytrip deal was found by Cheapflights users on 7/1. 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.
Thu 8/1412:39 pmSJC - STL
2 stops22h 53mSpirit Airlines
Mon 8/182:30 pmSTL - SJC
3 stops27h 16mSpirit Airlines
Deal found 7/1$290
This Trip.com deal was found by Cheapflights users on 6/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/146:00 amSJC - STL
2 stops29h 32mMultiple Airlines
Sat 8/167:29 pmSTL - SJC
1 stop17h 53mMultiple Airlines
Deal found 6/30$296
This Alaska Airlines deal was found by Cheapflights users on 6/30. 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 9/103:15 pmSJC - STL
1 stop21h 26mAlaska Airlines
Wed 10/226:33 amSTL - SJC
1 stop10h 17mAlaska Airlines
Deal found 6/30$312
This FlightHub deal was found by Cheapflights users on 6/30. 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 8/1412:18 pmSJC - STL
1 stop18h 53mFrontier
Sun 8/172:27 pmSTL - SJC
1 stop24h 50mFrontier
Deal found 6/30$314
This Southwest deal was found by Cheapflights users on 6/30. 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.
Wed 9/108:40 amSJC - STL
2 stops7h 10mSouthwest
Wed 10/223:50 pmSTL - SJC
1 stop7h 30mSouthwest
Deal found 6/30$318
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Tue 7/226:20 amSJC - STL
1 stop7h 27mUnited Airlines
Sat 7/265:30 pmSTL - SJC
1 stop7h 05mUnited Airlines
Deal found 7/1$360
This Delta deal was found by Cheapflights users on 6/30. 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.
Wed 7/166:20 amSJC - STL
1 stop6h 10mDelta
Fri 7/186:30 amSTL - SJC
1 stop8h 09mDelta
Deal found 6/30$407
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Tue 7/81:07 pmSJC - STL
1 stop7h 50mAmerican Airlines
Tue 7/1510:08 amSTL - SJC
2 stops10h 21mAmerican Airlines
Deal found 7/1$427

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 July 1, 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

Thu 8/14

12:39 pm-1:32 pm

2 stops22h 53m

Lambert-St Louis

Mon 8/18

2:30 pm-3:46 pm

3 stops27h 16m

$290

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Thu 8/14

6:00 am-1:32 pm

2 stops29h 32m

Lambert-St Louis

Sat 8/16

7:29 pm-11:22 am

1 stop17h 53m

$296

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Wed 9/10

3:15 pm-2:41 pm

1 stop21h 26m

Lambert-St Louis

Wed 10/22

6:33 am-2:50 pm

1 stop10h 17m

$312

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Thu 8/14

12:18 pm-9:11 am

1 stop18h 53m

Lambert-St Louis

Sun 8/17

2:27 pm-1:17 pm

1 stop24h 50m

$314

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Wed 9/10

8:40 am-5:50 pm

2 stops7h 10m

Lambert-St Louis

Wed 10/22

3:50 pm-9:20 pm

1 stop7h 30m

$318

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Tue 7/22

6:20 am-3:47 pm

1 stop7h 27m

Lambert-St Louis

Sat 7/26

5:30 pm-10:35 pm

1 stop7h 05m

$360

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Wed 7/16

6:20 am-2:30 pm

1 stop6h 10m

Lambert-St Louis

Fri 7/18

6:30 am-12:39 pm

1 stop8h 09m

$407

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Fri 7/11

11:38 am-10:57 pm

1 stop9h 19m

Lambert-St Louis

Sat 8/2

3:08 pm-10:59 pm

2 stops9h 51m

$427

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Mon 9/29

12:25 pm-9:06 am

1 stop18h 41m

$119

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Wed 8/6

4:22 pm-9:52 am

2 stops15h 30m

$123

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 16 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 27, 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 July 1, 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 July 1, 2025.
Read through reviews of airlines operating flights from San Jose to St. Louis, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

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

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

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
4,273 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

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
7,973 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

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
7.8
Good
2,539 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

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
8,858 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

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

    Spirit Airlines, at $290, was found to be the cheapest airline from San Jose to St. Louis.Alternate airlines to your destination round-trip include Alaska Airlines and Frontier. Spirit Airlines is currently priced 25% 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 Frontier, which is currently one of the cheapest options available, starting at $119. Spirit Airlines flights start at $123 while deals on Southwest start at $152 one-way.

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

    While on average a flight from San Jose to St. Louis is generally $426, our data shows the cheapest flight currently is $256. When looking at the most popular route, (San Jose - Lambert-St Louis), you can expect to pay $278 for that flight.

  • 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
Alton
Festus
Chesterfield
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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$218FlexibilityNo cancel feeOn-time62%
DeltaCheapest$246Average$372FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$246Average$338FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$370FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$332Average$440FlexibilityNo cancel feeOn-time63%

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