HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$28+ Cheap flights from California to St. Louis (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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STL
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from California to St. Louis 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 California to St. Louis

Cheapest flights from California to St. Louis
Explore the most affordable flight options available from California to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 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.
Fri 2/134:10 pm
LAS
-
STL
Nonstop3h 16m
Frontier
Mon 2/1610:11 pm
STL
-
LAS
Nonstop3h 48m
Frontier
Deal found 1/26$57
This Frontier deal was found by Cheapflights users on 1/24. 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 2/63:32 pm
LAS
-
STL
Nonstop3h 16m
Frontier
Sun 2/89:32 pm
STL
-
LAS
Nonstop3h 57m
Frontier
Deal found 1/24$98
This WAYA 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/145:30 am
LAS
-
STL
1 stop6h 26m
Frontier
Mon 2/1610:11 pm
STL
-
LAS
Nonstop3h 48m
Frontier
Deal found 1/25$99
This WAYA 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/275:30 am
LAS
-
STL
1 stop5h 39m
Frontier
Sun 3/110:11 pm
STL
-
LAS
Nonstop3h 48m
Frontier
Deal found 1/25$118
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.
Fri 2/275:30 am
LAS
-
STL
1 stop5h 39m
Frontier
Fri 2/2710:11 pm
STL
-
LAS
Nonstop3h 48m
Frontier
Deal found 1/25$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.
Wed 2/257:20 am
SFO
-
STL
1 stop6h 33m
Frontier
Sat 2/282:51 pm
STL
-
SFO
1 stop11h 37m
Frontier
Deal found 1/26$128
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.
Wed 2/257:20 am
SFO
-
STL
1 stop6h 33m
Frontier
Mon 3/210:11 pm
STL
-
SFO
1 stop22h 09m
Frontier
Deal found 1/26$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.
Sun 2/226:59 pm
LAS
-
STL
1 stop23h 03m
Frontier
Sun 3/110:11 pm
STL
-
LAS
Nonstop3h 48m
Frontier
Deal found 1/25$137
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:05 am
LAS
-
STL
Nonstop3h 14m
Frontier
Mon 3/912:14 pm
STL
-
LAS
Nonstop3h 57m
Frontier
Deal found 1/26$139
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.
Wed 2/257:20 am
SFO
-
STL
1 stop6h 33m
Frontier
Fri 2/271:59 pm
STL
-
SFO
1 stop20h 04m
Frontier
Deal found 1/26$143
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:40 am
ONT
-
STL
1 stop5h 13m
Frontier
Sat 2/282:51 pm
STL
-
ONT
1 stop11h 08m
Frontier
Deal found 1/26$148
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.
Fri 2/278:35 am
SAN
-
STL
1 stop27h 21m
Frontier
Sun 3/110:11 pm
STL
-
SAN
1 stop16h 54m
Frontier
Deal found 1/27$148

Find flight deals from California to St. Louis

Keep the following information in mind while searching for California to St. Louis flight deals. Data was last updated January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$57
(Kiwi.com)

One-way from

$28
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$400

Good round-trip deal

$332 or less

Good one-way deal

$191 or less
Provider with most accurate pricing for Los Angeles-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Lambert-St Louis flights.
Search Deals
From California to Lambert-St Louis
Search Deals
One-way flight from California to Lambert-St Louis
Search Deals
High demand for flights, 0% potential price rise
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 California to Lambert-St Louis.
Search Deals
Price to beat on a one-way flight from California to Lambert-St Louis.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from California 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 January 27, 2026.
Use the filters below to find and compare flights from California to St. Louis that are best for you.

Fly from

California

Fly to

St. Louis

Route

Depart

Return

Price

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Mon 2/23

6:50 am-8:02 pm

1 stop11h 12m

Lambert-St Louis

Mon 3/2

10:11 pm-11:59 pm

Nonstop3h 48m

$98

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Fri 2/27

4:10 pm-9:26 pm

Nonstop3h 16m

Lambert-St Louis

Sun 3/1

10:11 pm-11:59 pm

Nonstop3h 48m

$128

OntarioSt. Louis

ONT - STL

ONTSTL

Ontario

Wed 2/18

7:30 am-3:53 pm

1 stop6h 23m

Lambert-St Louis

Sat 2/21

2:51 pm-11:59 pm

1 stop11h 08m

$148

OntarioSt. Louis

ONT - STL

ONTSTL

Ontario

Wed 2/25

8:40 am-3:53 pm

1 stop5h 13m

Lambert-St Louis

Sat 2/28

2:51 pm-11:59 pm

1 stop11h 08m

$148

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Fri 3/6

6:05 am-11:19 am

Nonstop3h 14m

Lambert-St Louis

Sun 3/8

6:19 pm-8:09 pm

Nonstop3h 50m

$154

San DiegoSt. Louis

SAN - STL

SANSTL

San Diego

Thu 3/5

11:59 am-9:49 am

1 stop19h 50m

Lambert-St Louis

Mon 3/9

8:12 pm-9:14 pm

1 stop27h 02m

$161

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Fri 3/6

6:05 am-11:19 am

Nonstop3h 14m

Lambert-St Louis

Mon 3/9

8:12 pm-10:27 am

2 stops16h 15m

$172

OntarioSt. Louis

ONT - STL

ONTSTL

Ontario

Wed 3/4

8:40 am-3:53 pm

1 stop5h 13m

Lambert-St Louis

Tue 3/10

8:06 pm-1:28 pm

1 stop19h 22m

$185

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Fri 2/13

4:10 pm-9:26 pm

Nonstop3h 16m

Lambert-St Louis

Sun 3/15

8:06 pm-10:08 pm

Nonstop4h 02m

$188

OntarioSt. Louis

ONT - STL

ONTSTL

Ontario

Fri 2/13

2:21 pm-6:51 am

2 stops14h 30m

Lambert-St Louis

Mon 2/16

10:11 pm-1:11 pm

1 stop17h 00m

$230

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from California 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 California to St. Louis

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

Currently, September is the cheapest month in which you can book a flight from California to St. Louis (average of $71). Flying from California to St. Louis in August is currently the most expensive (average of $206). 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 CA to STL?

Find hourly flight availability from California 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 January 27, 2026.

When flying from California to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 16% versus a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from California to St. Louis. Price data was last updated on January 24, 2026.

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

Weekly flight availability from California to St. Louis

Explore weekly flight availability from California to St. Louis. 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 January 27, 2026.

The most flights from USCA to STL are scheduled on a Monday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Related info for your journey

Find useful and relevant information for your journey from California 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 airport do you fly into for flights to St. Louis from California?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly into when you book flights from California to St. Louis.

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

    The California to Lambert-St Louis flight path was viewed by 24 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 California to St. Louis?

    Airlines like Frontier, American Airlines, and Southwest fly from California to St. Louis in about 3h 25m. The time it takes to get you to your destination can typically vary by up to 7h 47m. The distance from California to St. Louis is about 1588 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airlines for a one-way flight from California to St. Louis are Frontier ($76), American Airlines ($89), and Southwest ($111).

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

    The most popular route from California to St. Louis is Los Angeles - Lambert-St Louis. You may also consider San Francisco - Lambert-St Louis or San Diego - Lambert-St Louis.

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

    The top 3 most reliable airlines when flying from California to St. Louis are SkyWest Airlines (77%), American Airlines (77%) and Cathay Pacific (73%).

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

    Looking for the cheapest flight from California to St. Louis? While on average our users pay $342, our data indicates the cheapest price to be $158. The most popular route (Los Angeles - Lambert-St Louis), is priced around $132.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from California to St. Louis (average of $71). Flying from California to St. Louis in August is currently the most expensive (average of $206). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

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 California to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to St. Louis flights
Newark to St. Louis flights
Atlanta to Kansas City flights
O'Hare Intl to Kansas City flights
John F Kennedy Intl to Kansas City flights
Dulles Intl to St. Louis flights
Los Angeles to Kansas City flights
LaGuardia to Kansas City flights
Hobby to Kansas City flights
Boston to St. Louis flights
Denver to Kansas City flights
John F Kennedy Intl to St. Louis flights
Boston to Kansas City flights
Minneapolis to St. Louis flights
San Francisco to Kansas City flights
Denver to St. Louis flights
Dulles Intl to Kansas City flights
Hobby to St. Louis flights
Atlanta to St. Louis flights
Newark to Kansas City flights
George Bush Intcntl to Kansas City flights
Los Angeles to St. Louis flights
Seattle to St. Louis flights
Reagan-National to St. Louis flights
Dallas/Fort Worth to St. Louis flights
Dallas/Fort Worth to Kansas City flights
San Francisco to St. Louis flights
Baltimore to St. Louis flights
Reagan-National to Kansas City flights
Baltimore to Kansas City flights
Seattle to Kansas City flights
O'Hare Intl to St. Louis flights
George Bush Intcntl to St. Louis flights
Orlando to St. Louis flights
Sky Harbor Intl to Kansas City flights
Orlando to Kansas City flights
Philadelphia to St. Louis flights
Sky Harbor Intl to St. Louis flights
Minneapolis to Kansas City flights
Raleigh to St. Louis flights
Detroit to Kansas City flights
Midway to Kansas City flights
Charlotte to St. Louis flights
Salt Lake City to Kansas City flights
Miami to St. Louis flights
Philadelphia to Kansas City flights
Detroit to St. Louis flights
Fort Lauderdale to St. Louis flights
Raleigh to Kansas City flights
Miami to Kansas City flights

Top 6 airlines flying from California to St. Louis

Discover the top 6 airlines that operate flights from California 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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$117Average$237FlexibilityNo cancel feeOn-time62%
DeltaCheapest$136Average$369FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$202Average$400FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$459FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$257Average$505FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$282Average$454FlexibilityNo cancel feeOn-time63%

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.
Site
©2026 Cheapflights