HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
California

$33+ Cheap flights from St. Louis (STL) to California

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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAX
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to California with Cheapflights

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

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to California

Keep the following information in mind while searching for St. Louis to California flight deals. Data was last updated September 11, 2025.

Round-trip from

$128
(Kiwi.com)

One-way from

$33
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$308

Good round-trip deal

$258 or less

Good one-way deal

$158 or less
From Lambert-St Louis to California
Search Deals
One-way flight from Lambert-St Louis to California
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to California.
Search Deals
Price to beat on a one-way flight from Lambert-St Louis to California.
Search Deals

Find flight deals from St. Louis to California

Cheapest flights from St. Louis to California
Explore the most affordable flight options available from St. Louis to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:55 pmSTL - SAN
1 stop28h 29mFrontier
Mon 10/610:20 amSAN - STL
1 stop20h 47mFrontier
Deal found 9/10$128
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2712:38 pmSTL - SAN
1 stop12h 26mFrontier
Tue 11/46:41 amSAN - STL
1 stop24h 26mFrontier
Deal found 9/10$139
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/27:45 pmSTL - SAN
1 stop17h 32mFrontier
Thu 11/63:59 pmSAN - STL
1 stop19h 58mFrontier
Deal found 9/10$140
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:45 pmSTL - SAN
1 stop17h 32mFrontier
Mon 11/175:47 pmSAN - STL
1 stop13h 20mFrontier
Deal found 9/9$141
This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/14:51 pmSTL - ONT
1 stop5h 51mFrontier
Thu 11/66:00 amONT - STL
1 stop5h 57mFrontier
Deal found 9/8$142
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/157:55 pmSTL - LAS
1 stop5h 38mFrontier
Fri 9/196:00 amLAS - STL
1 stop25h 06mFrontier
Deal found 9/9$142
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Fri 9/269:35 pmSTL - ONT
1 stop17h 08mFrontier
Sun 9/288:59 pmONT - STL
1 stop10h 07mFrontier
Deal found 9/10$143
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/224:00 pmSTL - LAS
1 stop7h 23mFrontier
Wed 9/2412:59 amLAS - STL
1 stop6h 07mFrontier
Deal found 9/10$143
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/147:52 pmSTL - SAN
1 stop5h 58mFrontier
Tue 10/216:41 amSAN - STL
1 stop24h 26mFrontier
Deal found 9/10$143
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:55 pmSTL - LAS
1 stop26h 56mFrontier
Mon 10/612:59 amLAS - STL
1 stop6h 08mFrontier
Deal found 9/11$144
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/114:51 pmSTL - SAN
1 stop6h 00mFrontier
Mon 10/139:03 pmSAN - STL
1 stop10h 04mFrontier
Deal found 9/10$144
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/139:59 pmSTL - ONT
1 stop24h 43mFrontier
Thu 10/166:05 amONT - STL
1 stop27h 38mFrontier
Deal found 9/11$145

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to California 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 September 11, 2025.
Use the filters below to find and compare flights from St. Louis to California that are best for you.

Fly from

St. Louis

Fly to

California

Route

Depart

Return

Price

St. LouisOntario

STL - ONT

STLONT

Lambert-St Louis

Sat 11/15

4:51 pm-8:42 pm

1 stop5h 51m

Ontario

Sun 11/16

7:47 am-5:28 pm

1 stop7h 41m

$144

St. LouisOntario

STL - ONT

STLONT

Lambert-St Louis

Mon 10/13

9:59 pm-8:42 pm

1 stop24h 43m

Ontario

Wed 10/15

6:53 am-9:07 am

1 stop24h 14m

$145

St. LouisOntario

STL - ONT

STLONT

Lambert-St Louis

Thu 9/25

10:49 am-3:29 pm

1 stop6h 40m

Ontario

Thu 9/25

8:59 pm-9:06 am

1 stop10h 07m

$154

St. LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

Fri 10/24

7:52 pm-11:50 pm

1 stop5h 58m

San Diego

Sun 10/26

7:23 pm-9:32 am

1 stop12h 09m

$154

St. LouisPalm Springs

STL - PSP

STLPSP

Lambert-St Louis

Thu 9/25

7:55 pm-11:46 am

1 stop17h 51m

Palm Springs

Sun 9/28

1:19 pm-9:06 am

1 stop17h 47m

$164

St. LouisOntario

STL - ONT

STLONT

Lambert-St Louis

Fri 9/26

2:38 pm-9:55 pm

1 stop9h 17m

Ontario

Sat 9/27

8:59 pm-9:06 am

1 stop10h 07m

$166

St. LouisOntario

STL - ONT

STLONT

Lambert-St Louis

Fri 9/26

2:38 pm-9:55 pm

1 stop9h 17m

Ontario

Wed 10/1

8:59 pm-9:06 am

1 stop10h 07m

$166

St. LouisOntario

STL - ONT

STLONT

Lambert-St Louis

Mon 9/29

2:38 pm-8:56 pm

1 stop8h 18m

Ontario

Tue 9/30

8:59 pm-9:06 am

1 stop10h 07m

$185

St. LouisOntario

STL - ONT

STLONT

Lambert-St Louis

Tue 10/7

5:10 pm-10:05 pm

1 stop6h 55m

Ontario

Tue 10/14

4:25 pm-12:30 am

1 stop6h 05m

$188

St. LouisLong Beach

STL - LGB

STLLGB

Lambert-St Louis

Wed 10/15

12:55 pm-5:55 pm

1 stop7h 00m

Long Beach Municipal

Sat 10/18

7:35 am-1:05 pm

Nonstop3h 30m

$194

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from St. Louis to California

Have a flexible travel schedule? Discover the best time to fly to California 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 California

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to California (average of $246). Flying from St. Louis to California in March is currently the most expensive (average of $325). 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 CA?

Find hourly flight availability from St. Louis to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from St. Louis to California, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from St. Louis to California

Explore weekly flight availability from St. Louis to California. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 11, 2025.

The most flights from STL to USCA are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. 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 California. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from St. Louis to California, such as Southwest, Delta, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to California?

    For a flight from St. Louis to California, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.

  • How popular is this St. Louis to California flight route?

    This flight path from Lambert-St Louis to California was viewed by 13 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from St. Louis to California?

    Frontier, Southwest, and American Airlines can get you from St. Louis to California in just under 5h 51m. Your travel time can differ by up to 1h 09m. The distance from St. Louis to California is about 1541 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $34. Users have also found prices from $82 and $82 on Southwest and United Airlines, respectively.

  • What are the most popular routes from St. Louis to California?

    While some choose either Lambert-St Louis - Los Angeles or Lambert-St Louis - San Francisco, Lambert-St Louis - Las Vegas Harry Reid Intl is the most popular route from St. Louis to California.

  • What are the most reliable airlines from St. Louis to California?

    Before booking your flight to California from St. Louis, check out the most reliable airlines to get you to your destination on time: Alaska Airlines (95%), Japan Airlines (90%), Air Tahiti Nui( 90%).

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

    On average you can expect to pay $689 for a flight from St. Louis to California. The cheapest flight overall is $139 while the most popular route, (Lambert-St Louis - Las Vegas Harry Reid Intl) is currently priced at $106.

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

    Yes. In addition to deals on St. Louis to California flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to California?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to California.

  • Can I find deals for business class flights from St. Louis to California?

    Yes. Cheapflights offers flight deals from St. Louis to California 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 California?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to California (average of $246). Flying from St. Louis to California in March is currently the most expensive (average of $325). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to California

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to Las Vegas flights
St. Louis to John F Kennedy Intl flights
St. Louis to LaGuardia flights
St. Louis to Denver flights
Kansas City to Las Vegas flights
St. Louis to Newark flights
St. Louis to Seattle flights
Kansas City to Newark flights
St. Louis to Orlando flights
Kansas City to Denver flights
Kansas City to LaGuardia flights
St. Louis to Dallas/Fort Worth flights
St. Louis to Sky Harbor Intl flights
Kansas City to O'Hare Intl flights
Kansas City to John F Kennedy Intl flights
Kansas City to Los Angeles flights
St. Louis to Hobby flights
St. Louis to Miami flights
Kansas City to Dallas/Fort Worth flights
Kansas City to Seattle flights
Kansas City to Atlanta flights
Kansas City to Orlando flights
St. Louis to Los Angeles flights
Kansas City to Sky Harbor Intl flights
Kansas City to Hobby flights
Kansas City to Miami flights
St. Louis to George Bush Intcntl flights
Kansas City to Dulles Intl flights
Kansas City to Boston flights
St. Louis to Salt Lake City flights
St. Louis to Boston flights
St. Louis to Dulles Intl flights
St. Louis to Atlanta flights
Kansas City to George Bush Intcntl flights
Kansas City to San Francisco flights
St. Louis to Baltimore flights
St. Louis to Minneapolis flights
Kansas City to San Diego flights
Kansas City to Minneapolis flights
Kansas City to Portland flights
St. Louis to San Francisco flights
Kansas City to Ontario flights
St. Louis to New Orleans flights
Kansas City to Midway flights
Kansas City to Tampa flights
Kansas City to Salt Lake City flights
Kansas City to Fort Lauderdale flights
St. Louis to San Diego flights
St. Louis to Honolulu flights
St. Louis to Tampa flights

Top 7 airlines flying from St. Louis to California

Discover the top 7 airlines that operate flights from St. Louis to California. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$94Average$225FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$172Average$173FlexibilityNo cancel feeOn-time65%
DeltaCheapest$181Average$349FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$202Average$367FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$407FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$256Average$451FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$296Average$547FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.