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$64+ 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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAX
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This Frontier deal was found by Cheapflights users on 12/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:19 pmSTL - LAS
Nonstop3h 49mFrontier
Thu 1/87:00 amLAS - STL
Nonstop3h 12mFrontier
Deal found 12/11$200
This Super.com deal was found by Cheapflights users on 12/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:10 pmSTL - LAS
Nonstop3h 52mFrontier
Thu 12/2511:03 amLAS - STL
Nonstop3h 21mFrontier
Deal found 12/11$203
This Frontier deal was found by Cheapflights users on 12/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/207:43 pmSTL - LAS
1 stop5h 59mFrontier
Thu 12/2511:03 amLAS - STL
Nonstop3h 21mFrontier
Deal found 12/11$204
This Frontier deal was found by Cheapflights users on 12/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:10 pmSTL - SFO
1 stop11h 38mFrontier
Thu 1/810:18 pmSFO - STL
1 stop11h 54mFrontier
Deal found 12/11$207
This CheapOair deal was found by Cheapflights users on 12/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/207:43 pmSTL - LAX
1 stop13h 59mFrontier
Tue 12/233:30 pmLAX - STL
1 stop22h 54mFrontier
Deal found 12/9$208
This CheapOair deal was found by Cheapflights users on 12/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:10 pmSTL - ONT
1 stop25h 07mFrontier
Sat 12/276:00 amONT - STL
1 stop13h 25mFrontier
Deal found 12/10$209
This CheapOair deal was found by Cheapflights users on 12/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/207:43 pmSTL - LAS
1 stop14h 22mFrontier
Fri 12/2612:59 amLAS - STL
1 stop7h 03mFrontier
Deal found 12/9$209
This Super.com deal was found by Cheapflights users on 12/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:10 pmSTL - LAX
1 stop24h 21mFrontier
Tue 12/308:58 pmLAX - STL
1 stop11h 04mFrontier
Deal found 12/10$214
This CheapOair deal was found by Cheapflights users on 12/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:43 pmSTL - LAX
1 stop13h 59mFrontier
Thu 1/16:34 amLAX - STL
1 stop25h 28mFrontier
Deal found 12/11$219
This Frontier deal was found by Cheapflights users on 12/10. 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.
Fri 12/1910:10 pmSTL - LAS
Nonstop3h 52mFrontier
Thu 12/2511:03 amLAS - STL
Nonstop3h 21mFrontier
Deal found 12/10$223
This Frontier deal was found by Cheapflights users on 12/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:43 pmSTL - LAS
1 stop5h 59mFrontier
Thu 12/2511:03 amLAS - STL
Nonstop3h 21mFrontier
Deal found 12/11$224
This CheapOair deal was found by Cheapflights users on 12/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:10 pmSTL - LAX
1 stop24h 21mFrontier
Mon 12/299:15 amLAX - STL
1 stop8h 52mFrontier
Deal found 12/10$225

Find 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 December 12, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$123
(Super.com)

One-way from

$64
(Frontier)

Popular in

March

Cheapest in

September

Average price

$401

Good round-trip deal

$369 or less

Good one-way deal

$194 or less
Provider with most accurate pricing for Lambert-St Louis-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Los Angeles flights.
Search Deals
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 ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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

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 December 12, 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

Mon 1/5

10:10 pm-3:09 pm

1 stop18h 59m

Ontario

Sat 1/10

3:21 pm-11:39 am

1 stop18h 18m

$183

St. LouisSacramento

STL - SMF

STLSMF

Lambert-St Louis

Fri 1/9

10:16 pm-2:54 pm

1 stop18h 38m

Sacramento Intl

Fri 1/16

11:45 am-2:48 pm

1 stop25h 03m

$183

St. LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

Fri 1/16

7:27 pm-6:13 pm

1 stop24h 46m

San Diego

Sun 1/25

9:45 pm-12:50 pm

2 stops13h 05m

$185

St. LouisOntario

STL - ONT

STLONT

Lambert-St Louis

Thu 1/29

10:01 pm-1:32 pm

1 stop17h 31m

Ontario

Sun 2/1

5:21 pm-8:50 pm

1 stop25h 29m

$187

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Thu 1/29

10:01 pm-12:37 pm

1 stop16h 36m

Santa Ana J. Wayne/Orange Cnty

Sun 2/1

3:56 pm-8:50 pm

1 stop26h 54m

$187

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 1/27

2:50 pm-9:00 pm

1 stop8h 10m

Las Vegas Harry Reid Intl

Fri 1/30

7:00 am-10:46 pm

1 stop13h 46m

$234

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 2/11

6:10 am-11:05 am

1 stop6h 55m

Las Vegas Harry Reid Intl

Wed 2/18

5:10 pm-12:25 am

1 stop5h 15m

$235

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Fri 2/20

6:40 pm-11:22 pm

1 stop6h 42m

Las Vegas Harry Reid Intl

Thu 2/26

11:05 am-11:23 pm

2 stops10h 18m

$244

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 2/22

6:40 pm-11:22 pm

1 stop6h 42m

Las Vegas Harry Reid Intl

Fri 2/27

11:05 am-11:23 pm

2 stops10h 18m

$244

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 2/21

3:38 pm-8:54 pm

1 stop7h 16m

Las Vegas Harry Reid Intl

Wed 2/25

11:05 am-11:23 pm

2 stops10h 18m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 60 results
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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, November is the cheapest month in which you can book a flight from St. Louis to California (average of $67). Flying from St. Louis to California in May is currently the most expensive (average of $211). 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 December 12, 2025.

It’s optimal to fly from St. Louis to California in the evening. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to California. Price data was last updated on December 6, 2025.

Travelers seeking maximum savings on their St. Louis to California flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 12, 2025.

The most flights from STL to USCA are scheduled on a Monday (11 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (8 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 December 12, 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
7.9
Good
4,253 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,253 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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
9,095 reviews
Southwest
7.9
Good
4,253 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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
11,050 reviews
Southwest
7.9
Good
4,253 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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
3,084 reviews
Southwest
7.9
Good
4,253 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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 17 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, Alaska Airlines, and Delta can get you from St. Louis to California in just under 6h 55m. Your travel time can differ by up to 12h 04m. The distance from St. Louis to California is about 1367 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 $60. Users have also found prices from $113 and $113 on American Airlines 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 (76%), Japan Airlines (70%), Cathay Pacific( 70%).

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

    On average you can expect to pay $927 for a flight from St. Louis to California. The cheapest flight overall is $177 while the most popular route, (Lambert-St Louis - Las Vegas Harry Reid Intl) is currently priced at $140.

  • 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, November is the cheapest month in which you can book a flight from St. Louis to California (average of $67). Flying from St. Louis to California in May is currently the most expensive (average of $211). 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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Alternative routes for St. Louis to California

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$88Average$207FlexibilityNo cancel feeOn-time62%
DeltaCheapest$171Average$356FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$172Average$173FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$182Average$403FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$182Average$359FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$256Average$449FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$296Average$512FlexibilityNo cancel feeOn-time75%

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