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$54+ 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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAX
feb. 26 — mar. 51
jue. 2/26
jue. 3/5
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 enero 27, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
dom. 2/81:03 pm
STL
-
LAS
1 stop8h 28m
Frontier
sáb. 2/1412:22 pm
LAS
-
STL
Nonstop3h 24m
Frontier
Deal found 1/26$120
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
lun. 2/1610:11 pm
STL
-
LAS
Nonstop3h 48m
Frontier
jue. 2/198:23 pm
LAS
-
STL
1 stop21h 44m
Frontier
Deal found 1/26$122
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
sáb. 2/282:51 pm
STL
-
LAS
1 stop10h 53m
Frontier
mar. 3/1012:59 am
LAS
-
STL
1 stop6h 50m
Frontier
Deal found 1/25$125
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
lun. 3/210:11 pm
STL
-
SFO
1 stop22h 09m
Frontier
mar. 3/109:04 pm
SFO
-
STL
1 stop10h 45m
Frontier
Deal found 1/27$126
This Cheapflightsfares deal was found by Cheapflights users on 1/26. 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.
vie. 2/2710:11 pm
STL
-
LAS
Nonstop3h 48m
Frontier
lun. 3/23:57 pm
LAS
-
STL
Nonstop3h 16m
Frontier
Deal found 1/26$126
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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.
mar. 2/243:49 pm
STL
-
LAS
1 stop20h 26m
Frontier
mar. 3/311:03 pm
LAS
-
STL
1 stop21h 24m
Frontier
Deal found 1/27$127
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
lun. 3/210:11 pm
STL
-
ONT
1 stop17h 00m
Frontier
mar. 3/106:15 am
ONT
-
STL
1 stop25h 34m
Frontier
Deal found 1/25$128
This Expedia deal was found by Cheapflights users on 1/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/282:51 pm
STL
-
LAS
1 stop19h 50m
Frontier
mié. 3/411:03 pm
LAS
-
STL
1 stop29h 59m
Frontier
Deal found 1/27$128
This Trip.com deal was found by Cheapflights users on 1/26. 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.
jue. 2/2610:11 pm
STL
-
LAS
Nonstop3h 48m
Frontier
lun. 3/211:03 pm
LAS
-
STL
1 stop21h 24m
Frontier
Deal found 1/26$129
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
vie. 2/2710:11 pm
STL
-
LAS
Nonstop3h 48m
Frontier
mar. 3/34:31 pm
LAS
-
STL
2 stops21h 22m
Frontier
Deal found 1/25$130
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
jue. 2/2610:11 pm
STL
-
SNA
1 stop16h 14m
Multiple Airlines
sáb. 2/286:45 am
SNA
-
STL
1 stop9h 01m
Multiple Airlines
Deal found 1/25$131
This Super.com deal was found by Cheapflights users on 1/26. 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.
dom. 3/158:06 pm
STL
-
LAS
Nonstop4h 02m
Frontier
jue. 3/197:00 am
LAS
-
STL
Nonstop3h 15m
Frontier
Deal found 1/26$131

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 enero 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$120
(Kiwi.com)

One-way from

$54
(Frontier)

Popular in

March

Cheapest in

September

Average price

$364

Good round-trip deal

$355 or less

Good one-way deal

$241 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. 3% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 enero 27, 2026.
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

lun. 2/23

1:54 pm-11:59 pm

1 stop12h 05m

Ontario

mié. 2/25

8:40 am-3:53 pm

1 stop5h 13m

$185

St. LouisOntario

STL - ONT

STLONT

Lambert-St Louis

lun. 5/4

9:55 pm-6:34 pm

1 stop22h 39m

Ontario

jue. 5/7

8:59 pm-9:00 pm

1 stop22h 01m

$191

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

vie. 2/27

7:55 pm-9:40 pm

Nonstop3h 45m

Las Vegas Harry Reid Intl

lun. 3/2

6:40 pm-11:45 pm

Nonstop3h 05m

$217

St. LouisReno

STL - RNO

STLRNO

Lambert-St Louis

mar. 3/10

8:06 pm-2:59 pm

1 stop20h 53m

Reno

mar. 3/17

3:44 pm-11:19 am

1 stop17h 35m

$221

St. LouisOntario

STL - ONT

STLONT

Lambert-St Louis

jue. 2/26

10:11 pm-4:01 pm

1 stop19h 50m

Ontario

dom. 3/1

2:08 pm-1:09 pm

1 stop21h 01m

$222

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

mar. 3/31

3:05 pm-8:24 pm

1 stop7h 19m

Las Vegas Harry Reid Intl

sáb. 4/4

1:20 pm-9:31 pm

1 stop6h 11m

$233

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

vie. 4/3

6:05 pm-9:58 pm

1 stop5h 53m

Las Vegas Harry Reid Intl

mar. 4/7

11:55 am-8:54 pm

1 stop6h 59m

$233

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

vie. 4/10

6:12 pm-11:55 pm

1 stop7h 43m

Las Vegas Harry Reid Intl

mar. 4/14

5:20 pm-12:25 am

1 stop5h 05m

$233

St. LouisReno

STL - RNO

STLRNO

Lambert-St Louis

jue. 3/26

8:06 pm-1:46 pm

1 stop19h 40m

Reno

lun. 3/30

2:41 pm-11:19 am

1 stop18h 38m

$249

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

mié. 2/25

7:00 am-5:49 pm

2 stops12h 49m

Las Vegas Harry Reid Intl

mié. 3/4

11:05 am-11:23 pm

2 stops10h 18m

$254

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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 $217). 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 enero 27, 2026.

It’s optimal to fly from St. Louis to California in the afternoon. By choosing this option you can save up to 8% 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 January 24, 2026.

Travelers seeking maximum savings on their St. Louis to California flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday 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 enero 27, 2026.

The most flights from STL to USCA are scheduled on a Monday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 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 enero 27, 2026.
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
4,268 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

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
4,268 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

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
7.9
Good
8,118 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

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
9,205 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

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
11,197 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

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
5.7
Fair
3,056 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

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 18 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 Delta can get you from St. Louis to California in just under 3h 45m. Your travel time can differ by up to 8h 20m. 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 $65. Users have also found prices from $92 and $128 on American Airlines and Delta, 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: Malaysia Airlines (82%), Japan Airlines (71%), Air Tahiti Nui( 71%).

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

    On average you can expect to pay $1,068 for a flight from St. Louis to California. The cheapest flight overall is $150 while the most popular route, (Lambert-St Louis - Las Vegas Harry Reid Intl) is currently priced at $114.

  • 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 $217). 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 8 airlines flying from St. Louis to California

Discover the top 8 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 enero 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$88Average$213FlexibilityNo cancel feeOn-time62%
DeltaCheapest$138Average$346FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$172Average$173FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$180Average$362FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$182Average$411FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$259Average$446FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$296Average$500FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$304Average$360FlexibilityNo cancel feeOn-time62%

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