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

American Airlines, at $217, was found to be the cheapest airline from San Jose to St. Louis.Alternate airlines to your destination round-trip include Delta and United Airlines. American Airlines is currently priced 41% 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 Hawaiian Airlines, which is currently one of the cheapest options available, starting at $108. American Airlines flights start at $109 while deals on Southwest start at $124 one-way.

What is the cheapest day to fly from San Jose to St. Louis?

Travelers seeking maximum savings on their San Jose to St. Louis flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from San Jose to St. Louis?

The most popular airlines flying from San Jose to St. Louis are American Airlines, Delta and Frontier. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from San Jose to St. Louis?

Leaving on a Sunday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 56% on the overall cost on flights from San Jose to St. Louis.

How far in advance should I book a flight from San Jose to St. Louis?

Users have found that booking a flight from San Jose to St. Louis at least 46 days early can save you up to 93% on average compared to booking a flight this week. If booking 46 days before your flight isn’t an option for you, users have found flights from San Jose to St. Louis for as little as $338 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $373 for flights departing within the next 3 days.

What is the cheapest month to fly from San Jose to St. Louis?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, April can be a great choice for travel to St. Louis. Flights to St. Louis from San Jose in April are about $373 on average during April, but can be found for as low as $235.

Most accurate provider : When it comes to deals on San Jose-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Jose-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Jose-St. Louis flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Jose-St. Louis 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 San Jose-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$108+ Save on Flights from San Jose to St. Louis

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from San Jose to Lambert-St Louis are usually found in April or August, booked 46 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from San Jose to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$217 (American Airlines)
One-way from	$108 (Hawaiian Airlines)
Popular in	December
Cheapest in	April
Average price	$369

Provider with most accurate pricing for San Jose-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Jose-Lambert-St Louis flights.

Search Deals

From San Jose to Lambert-St Louis

Search Deals

One-way flight from San Jose to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($41 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

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 March 25, 2025.

Tue 4/812:15 pmSJC - STL

1 stop8h 13mAmerican Airlines

Wed 4/92:24 pmSTL - SJC

1 stop6h 19mAmerican Airlines

Deal found 3/24

$217

Wed 10/291:00 pmSJC - STL

1 stop8h 56mAlaska Airlines

Tue 11/42:55 pmSTL - SJC

1 stop9h 08mAlaska Airlines

Deal found 3/23

$256

Mon 4/75:10 pmSJC - STL

1 stop5h 18mDelta

Thu 4/107:30 pmSTL - SJC

1 stop6h 26mDelta

Deal found 3/24

$257

Thu 5/81:11 pmSJC - STL

1 stop6h 52mUnited Airlines

Thu 5/156:00 amSTL - SJC

1 stop8h 03mUnited Airlines

Deal found 3/24

$269

Fri 4/43:49 pmSJC - STL

1 stop15h 17mFrontier

Sun 4/612:37 pmSTL - SJC

1 stop28h 21mFrontier

Deal found 3/24

$300

Mon 4/283:30 pmSJC - STL

1 stop5h 30mSouthwest

Wed 4/306:50 amSTL - SJC

2 stops7h 35mSouthwest

Deal found 3/24

$313

Mon 4/77:54 pmSJC - STL

2 stops19h 58mSpirit Airlines

Thu 4/106:10 pmSTL - SJC

2 stops15h 19mSpirit Airlines

Deal found 3/24

$376

Mon 4/77:54 pmSJC - STL

3 stops18h 51mMultiple Airlines

Thu 4/109:20 amSTL - SJC

3 stops24h 09mMultiple Airlines

Deal found 3/24

$423

Best flights from San Jose to St. Louis
Discover carefully curated flight deals from San Jose to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 25, 2025.

Tue 4/812:15 pmSJC - STL

1 stop8h 13mAmerican Airlines

Wed 4/92:24 pmSTL - SJC

1 stop6h 19mAmerican Airlines

Deal found 3/24

$217

Mon 4/75:10 pmSJC - STL

1 stop5h 18mDelta

Wed 4/95:00 pmSTL - SJC

1 stop8h 56mDelta

Deal found 3/24

$257

Thu 5/81:11 pmSJC - STL

1 stop6h 52mUnited Airlines

Thu 5/156:00 amSTL - SJC

1 stop8h 03mUnited Airlines

Deal found 3/24

$269

Fri 4/43:49 pmSJC - STL

1 stop15h 17mFrontier

Sun 4/612:37 pmSTL - SJC

1 stop28h 21mFrontier

Deal found 3/24

$300

Wed 4/93:00 pmSJC - STL

1 stop6h 59mAlaska Airlines

Tue 4/156:44 amSTL - SJC

2 stops18h 04mAlaska Airlines

Deal found 3/23

$303

Mon 4/283:30 pmSJC - STL

1 stop5h 30mSouthwest

Wed 4/306:50 amSTL - SJC

2 stops7h 35mSouthwest

Deal found 3/24

$313

Mon 4/77:54 pmSJC - STL

2 stops19h 58mSpirit Airlines

Thu 4/106:10 pmSTL - SJC

2 stops15h 19mSpirit Airlines

Deal found 3/24

$376

Mon 4/77:54 pmSJC - STL

3 stops18h 51mMultiple Airlines

Thu 4/109:20 amSTL - SJC

3 stops24h 09mMultiple Airlines

Deal found 3/24

$423

Last-minute flights from San Jose to St. Louis
Discover last-minute flight deals from San Jose to St. Louis. Data last updated March 25, 2025 and is based on user searches.

Fri 4/43:49 pmSJC - STL

1 stop15h 17mFrontier

Sun 4/612:37 pmSTL - SJC

1 stop28h 21mFrontier

Deal found 3/24

$300

Mon 4/75:10 pmSJC - STL

1 stop5h 18mDelta

Thu 4/107:30 pmSTL - SJC

1 stop6h 26mDelta

Deal found 3/24

$257

Mon 4/77:54 pmSJC - STL

2 stops19h 58mSpirit Airlines

Thu 4/106:10 pmSTL - SJC

2 stops15h 19mSpirit Airlines

Deal found 3/24

$376

Mon 4/77:54 pmSJC - STL

3 stops18h 51mMultiple Airlines

Thu 4/109:20 amSTL - SJC

3 stops24h 09mMultiple Airlines

Deal found 3/24

$423

Tue 4/812:15 pmSJC - STL

1 stop8h 13mAmerican Airlines

Wed 4/92:24 pmSTL - SJC

1 stop6h 19mAmerican Airlines

Deal found 3/24

$217

Wed 4/93:00 pmSJC - STL

1 stop6h 59mAlaska Airlines

Tue 4/156:44 amSTL - SJC

2 stops18h 04mAlaska Airlines

Deal found 3/23

$303

Mon 4/283:30 pmSJC - STL

1 stop5h 30mSouthwest

Wed 4/306:50 amSTL - SJC

2 stops7h 35mSouthwest

Deal found 3/24

$313

Tue 4/296:35 amSJC - STL

1 stop7h 12mUnited Airlines

Sun 5/45:20 amSTL - SJC

1 stop6h 42mUnited Airlines

Deal found 3/24

$307

One-way flights from San Jose to St. Louis
Search for one-way flight options from San Jose to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 25, 2025.

Sun 5/251:31 pmSJC - STL

1 stop8h 33mHawaiian Airlines

Deal found 3/24

$108

Sat 4/266:10 amSJC - STL

1 stop8h 26mAmerican Airlines

Deal found 3/24

$109

Mon 6/26:35 amSJC - STL

1 stop6h 00mSouthwest

Deal found 3/24

$124

Wed 5/74:28 pmSJC - STL

2 stops14h 47mSpirit Airlines

Deal found 3/24

$126

Mon 5/51:05 pmSJC - STL

1 stop8h 31mDelta

Deal found 3/24

$129

Tue 5/209:23 amSJC - STL

2 stops12h 41mAlaska Airlines

Deal found 3/24

$150

Thu 5/87:41 pmSJC - STL

1 stop23h 24mFrontier

Deal found 3/24

$156

Tue 5/67:54 pmSJC - STL

3 stops46h 16mMultiple Airlines

Deal found 3/24

$163

Sun 5/46:20 amSJC - STL

1 stop6h 30mUnited Airlines

Deal found 3/24

$164

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Jose to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Tue 4/8

12:15 pm-10:28 pm

1 stop8h 13m

Lambert-St Louis

Wed 4/9

2:24 pm-6:43 pm

1 stop6h 19m

$217

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Mon 4/7

5:10 pm-12:28 am

1 stop5h 18m

Lambert-St Louis

Wed 4/9

5:00 pm-11:56 pm

1 stop8h 56m

$257

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Thu 5/8

1:11 pm-10:03 pm

1 stop6h 52m

Lambert-St Louis

Thu 5/15

6:00 am-12:03 pm

1 stop8h 03m

$269

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Fri 4/4

3:49 pm-9:06 am

1 stop15h 17m

Lambert-St Louis

Sun 4/6

12:37 pm-2:58 pm

1 stop28h 21m

$300

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Wed 4/9

3:00 pm-11:59 pm

1 stop6h 59m

Lambert-St Louis

Tue 4/15

6:44 am-10:48 pm

2 stops18h 04m

$303

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Mon 4/28

3:30 pm-11:00 pm

1 stop5h 30m

Lambert-St Louis

Wed 4/30

6:50 am-12:25 pm

2 stops7h 35m

$313

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Mon 4/7

7:54 pm-5:52 pm

2 stops19h 58m

Lambert-St Louis

Thu 4/10

6:10 pm-7:29 am

2 stops15h 19m

$376

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Mon 4/7

7:54 pm-4:45 pm

3 stops18h 51m

Lambert-St Louis

Thu 4/10

9:20 am-7:29 am

3 stops24h 09m

$423

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Sun 5/25

1:31 pm-12:04 am

1 stop8h 33m

$108

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Sat 4/26

6:10 am-4:36 pm

1 stop8h 26m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 17 results

Compare providers for flights from San Jose to St. Louis

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Jose to St. Louis in March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
Kiwi.com	Price Accuracy3 stars	Trust Score*2 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 San Jose-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Jose-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Jose-St. Louis flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Jose-St. Louis 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 San Jose-St. Louis 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 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?

To ensure you get the cheapest price possible for a flight from San Jose to St. Louis, you should look to book at least 45 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?

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

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

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

Alaska Airlines

8.0

Very good

9,782 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

9,782 reviews

Alaska Airlines

8.0

Very good

9,782 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Southwest

8.0

Very good

4,272 reviews

Alaska Airlines

8.0

Very good

9,782 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta

8.0

Very good

7,890 reviews

Alaska Airlines

8.0

Very good

9,782 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Hawaiian Airlines

7.9

Good

2,330 reviews

Alaska Airlines

8.0

Very good

9,782 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines

7.4

Good

8,605 reviews

Alaska Airlines

8.0

Very good

9,782 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

What are the cheapest airlines flying from San Jose to St. Louis round-trip?
American Airlines, at $217, was found to be the cheapest airline from San Jose to St. Louis.Alternate airlines to your destination round-trip include Delta and United Airlines. American Airlines is currently priced 41% 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 Hawaiian Airlines, which is currently one of the cheapest options available, starting at $108. American Airlines flights start at $109 while deals on Southwest start at $124 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

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Other flights to St. Louis

Top 6 airlines flying from San Jose to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$118	Average$218	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$149	Average$179	FlexibilityNo cancel fee	On-time65%
American Airlines	Cheapest$235	Average$346	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$236	Average$373	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$245	Average$368	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$341	Average$493	FlexibilityNo cancel fee	On-time63%

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$108+ 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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Jose to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from San Jose to Lambert-St Louis are usually found in April or August, booked 46 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from San Jose to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from San Jose to St. Louis

Cheapest flights from San Jose to St. LouisExplore 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 March 25, 2025.

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 March 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Jose to St. Louis that are best for you.

Compare providers for flights from San Jose to St. Louis

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 San Jose to St. Louis in March.

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.

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 March 21, 2025.

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

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 March 25, 2025.

Rainfall in St. Louis by month

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

Temperature in St. Louis by month

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

Reviews of airlines servicing St. Louis

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?

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

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

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

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

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

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Top 6 airlines flying from San Jose to St. Louis

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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 March 25, 2025.