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St. Louis

$43+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STL
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap 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 July 3, 2025.

Round-trip from

$122
(Priceline)

One-way from

$43
(Priceline)

Popular in

December

Cheapest in

August

Average price

$437

Good round-trip deal

$292 or less

Good one-way deal

$183 or less
From California to Lambert-St Louis
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One-way flight from California to Lambert-St Louis
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Highest demand for flights based on searches. 6% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from California to Lambert-St Louis.
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Price to beat on a one-way flight from California to Lambert-St Louis.
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Find 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 July 3, 2025.

This Priceline deal was found by Cheapflights users on 7/3. 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.
Wed 8/2712:59 amLAS - STL
1 stop6h 19mFrontier
Mon 9/12:01 pmSTL - LAS
1 stop8h 58mFrontier
Deal found 7/3$122
This Priceline deal was found by Cheapflights users on 7/2. 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.
Thu 8/288:26 pmSAN - STL
1 stop10h 45mFrontier
Thu 9/410:39 amSTL - SAN
1 stop8h 03mFrontier
Deal found 7/2$147
This Priceline deal was found by Cheapflights users on 7/1. 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.
Fri 7/46:00 amONT - STL
1 stop5h 42mFrontier
Sat 7/57:29 pmSTL - ONT
1 stop6h 21mFrontier
Deal found 7/1$172
This Priceline deal was found by Cheapflights users on 7/1. 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 8/1610:15 pmLAS - STL
1 stop9h 25mMultiple Airlines
Sat 8/237:54 pmSTL - LAS
1 stop5h 40mMultiple Airlines
Deal found 7/1$175
This FlightHub deal was found by Cheapflights users on 7/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:33 pmLAS - STL
1 stop13h 02mSpirit Airlines
Sun 10/52:30 pmSTL - LAS
1 stop8h 58mSpirit Airlines
Deal found 7/2$201
This Mytrip deal was found by Cheapflights users on 7/2. 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.
Wed 9/311:52 amRNO - STL
1 stop19h 14mFrontier
Thu 9/47:55 pmSTL - RNO
1 stop17h 09mFrontier
Deal found 7/2$206
This Delta deal was found by Cheapflights users on 6/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/612:40 amLAS - STL
1 stop5h 54mDelta
Mon 8/116:00 amSTL - LAS
1 stop8h 29mDelta
Deal found 6/30$207
This FlightHub deal was found by Cheapflights users on 7/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2412:58 pmSNA - STL
1 stop18h 08mFrontier
Sun 9/287:55 pmSTL - SNA
1 stop17h 12mFrontier
Deal found 7/3$222
This FlightHub deal was found by Cheapflights users on 7/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2412:33 pmSNA - STL
1 stop23h 02mSpirit Airlines
Sun 9/282:30 pmSTL - SNA
1 stop23h 08mSpirit Airlines
Deal found 7/2$239
This FlightHub deal was found by Cheapflights users on 7/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2111:55 amSMF - STL
1 stop19h 16mFrontier
Sun 8/247:54 pmSTL - SMF
1 stop17h 16mFrontier
Deal found 7/2$240
This Justfly.com deal was found by Cheapflights users on 7/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1412:18 pmSJC - STL
1 stop18h 53mFrontier
Sun 8/172:27 pmSTL - SJC
1 stop24h 50mFrontier
Deal found 7/2$258
This FlightHub deal was found by Cheapflights users on 6/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/284:37 pmSNA - STL
1 stop19h 09mMultiple Airlines
Mon 9/12:30 pmSTL - SNA
1 stop22h 59mMultiple Airlines
Deal found 6/30$258

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 July 3, 2025.
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

Wed 8/27

12:59 am-9:18 am

1 stop6h 19m

Lambert-St Louis

Mon 9/1

2:01 pm-8:59 pm

1 stop8h 58m

$122

San DiegoSt. Louis

SAN - STL

SANSTL

San Diego

Thu 8/28

8:26 pm-9:11 am

1 stop10h 45m

Lambert-St Louis

Thu 9/4

10:39 am-4:42 pm

1 stop8h 03m

$147

OntarioSt. Louis

ONT - STL

ONTSTL

Ontario

Fri 9/5

8:59 pm-9:06 am

1 stop10h 07m

Lambert-St Louis

Sun 9/7

10:39 am-3:24 pm

1 stop6h 45m

$173

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Sat 8/16

10:15 pm-9:40 am

1 stop9h 25m

Lambert-St Louis

Sat 8/23

7:54 pm-11:34 pm

1 stop5h 40m

$175

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 10/1

10:33 pm-1:35 pm

1 stop13h 02m

Lambert-St Louis

Sun 10/5

2:30 pm-9:28 pm

1 stop8h 58m

$201

RenoSt. Louis

RNO - STL

RNOSTL

Reno

Wed 9/3

11:52 am-9:06 am

1 stop19h 14m

Lambert-St Louis

Thu 9/4

7:55 pm-11:04 am

1 stop17h 09m

$206

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 8/6

12:40 am-8:34 am

1 stop5h 54m

Lambert-St Louis

Mon 8/11

6:00 am-12:29 pm

1 stop8h 29m

$207

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Wed 9/24

12:58 pm-9:06 am

1 stop18h 08m

Lambert-St Louis

Sun 9/28

7:55 pm-11:07 am

1 stop17h 12m

$222

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Wed 9/24

12:33 pm-1:35 pm

1 stop23h 02m

Lambert-St Louis

Sun 9/28

2:30 pm-11:38 am

1 stop23h 08m

$239

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 8/21

11:55 am-9:11 am

1 stop19h 16m

Lambert-St Louis

Sun 8/24

7:54 pm-11:10 am

1 stop17h 16m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 60 results
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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, August is the cheapest month in which you can book a flight from California to St. Louis (average of $311). Flying from California 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 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 July 3, 2025.

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

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated July 3, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from California to St. Louis to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,270 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,970 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,845 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 18 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 ($43), Alaska Airlines ($103), and United Airlines ($104).

  • 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 Ontario - 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 Qatar Airways (89%), Southwest (81%) and Japan Airlines (80%).

  • 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 $355, our data indicates the cheapest price to be $142. The most popular route (Los Angeles - Lambert-St Louis), is priced around $131.

  • 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, August is the cheapest month in which you can book a flight from California to St. Louis (average of $311). Flying from California 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

Traveling to a place near California?

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

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Alternative routes for California to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from California to St. Louis

Discover the top 7 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$99Average$287FlexibilityNo cancel feeOn-time65%
FrontierCheapest$108Average$229FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$166Average$393FlexibilityNo cancel feeOn-time71%
DeltaCheapest$184Average$375FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$246Average$441FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$299Average$460FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$327Average$691FlexibilityNo cancel feeOn-time75%

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