St. Louis

$78+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STL
Jun 17 — Jun 241
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

Keep the following information in mind while searching for California to St. Louis flight deals. Data was last updated June 12, 2025.

Round-trip from

$169
(FlightHub)

One-way from

$78
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$460

Good round-trip deal

$383 or less

Good one-way deal

$198 or less
From California to Lambert-St Louis
One-way flight from California to Lambert-St Louis
Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in June 2025
Price to beat on a round-trip flight from California to Lambert-St Louis.
Price to beat on a one-way flight from California to Lambert-St Louis.

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 June 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/12. 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 10/15:28 pmLAS - STL
1 stop12h 21mSpirit Airlines
Sun 10/58:44 amSTL - LAS
1 stop13h 22mSpirit Airlines
Deal found 6/12$169
This FlightHub deal was found by Cheapflights users on 6/12. 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 7/912:20 amLAS - STL
1 stop7h 32mMultiple Airlines
Sun 7/132:27 pmSTL - LAS
Nonstop3h 36mMultiple Airlines
Deal found 6/12$201
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 9/88:09 amLAS - STL
Nonstop3h 25mFrontier
Mon 9/159:25 pmSTL - LAS
Nonstop3h 38mFrontier
Deal found 6/12$202
This Mytrip deal was found by Cheapflights users on 6/12. 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.
Thu 7/311:55 amSAN - STL
1 stop27h 09mSpirit Airlines
Mon 7/77:13 pmSTL - SAN
2 stops25h 13mSpirit Airlines
Deal found 6/12$226
This CheapOair deal was found by Cheapflights users on 6/10. 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.
Tue 8/2612:59 amONT - STL
1 stop6h 12mFrontier
Sun 8/317:54 pmSTL - ONT
1 stop14h 51mFrontier
Deal found 6/10$234
This Mytrip deal was found by Cheapflights users on 6/12. 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 7/912:01 pmSMF - STL
2 stops19h 51mSpirit Airlines
Mon 7/1410:47 amSTL - SMF
2 stops33h 40mSpirit Airlines
Deal found 6/12$243
This Frontier deal was found by Cheapflights users on 6/12. 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.
Thu 9/49:03 pmSAN - STL
1 stop10h 04mFrontier
Tue 9/97:52 pmSTL - SAN
1 stop5h 58mFrontier
Deal found 6/12$250
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Wed 6/259:38 pmOAK - STL
2 stops34h 55mMultiple Airlines
Sun 6/296:12 amSTL - OAK
1 stop12h 33mMultiple Airlines
Deal found 6/10$256
This Mytrip deal was found by Cheapflights users on 6/12. 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.
Thu 7/106:00 amOAK - STL
2 stops25h 52mSpirit Airlines
Thu 7/1710:47 amSTL - OAK
2 stops38h 46mSpirit Airlines
Deal found 6/12$269
This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/312:33 pmBUR - STL
1 stop18h 38mFrontier
Wed 9/37:54 pmSTL - BUR
1 stop17h 24mFrontier
Deal found 6/9$270
This Booking.com deal was found by Cheapflights users on 6/11. 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.
Sat 8/167:03 pmLAX - STL
1 stop21h 56mFrontier
Wed 8/207:54 pmSTL - LAX
1 stop6h 33mFrontier
Deal found 6/11$275
This Booking.com deal was found by Cheapflights users on 6/12. 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 8/2912:53 pmLAX - STL
1 stop22h 40mMultiple Airlines
Sun 10/58:44 amSTL - LAX
1 stop8h 52mMultiple Airlines
Deal found 6/12$276

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 June 12, 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 10/1

5:28 pm-7:49 am

1 stop12h 21m

Lambert-St Louis

Sun 10/5

8:44 am-8:06 pm

1 stop13h 22m

$169

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 7/9

12:20 am-9:52 am

1 stop7h 32m

Lambert-St Louis

Sun 7/13

2:27 pm-4:03 pm

Nonstop3h 36m

$201

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Mon 9/8

8:09 am-1:34 pm

Nonstop3h 25m

Lambert-St Louis

Mon 9/15

9:25 pm-11:03 pm

Nonstop3h 38m

$202

San DiegoSt. Louis

SAN - STL

SANSTL

San Diego

Thu 7/3

11:55 am-5:04 pm

1 stop27h 09m

Lambert-St Louis

Mon 7/7

7:13 pm-6:26 pm

2 stops25h 13m

$226

OntarioSt. Louis

ONT - STL

ONTSTL

Ontario

Tue 8/26

12:59 am-9:11 am

1 stop6h 12m

Lambert-St Louis

Sun 8/31

7:54 pm-8:45 am

1 stop14h 51m

$234

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 7/9

12:01 pm-9:52 am

2 stops19h 51m

Lambert-St Louis

Mon 7/14

10:47 am-6:27 pm

2 stops33h 40m

$243

San DiegoSt. Louis

SAN - STL

SANSTL

San Diego

Thu 9/4

9:03 pm-9:07 am

1 stop10h 04m

Lambert-St Louis

Tue 9/9

7:52 pm-11:50 pm

1 stop5h 58m

$250

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Wed 6/25

9:38 pm-10:33 am

2 stops34h 55m

Lambert-St Louis

Sun 6/29

6:12 am-4:45 pm

1 stop12h 33m

$256

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Thu 7/10

6:00 am-9:52 am

2 stops25h 52m

Lambert-St Louis

Thu 7/17

10:47 am-11:33 pm

2 stops38h 46m

$269

BurbankSt. Louis

BUR - STL

BURSTL

Burbank Bob Hope

Sun 8/3

12:33 pm-9:11 am

1 stop18h 38m

Lambert-St Louis

Wed 9/3

7:54 pm-11:18 am

1 stop17h 24m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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, 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 June 12, 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.

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 June 12, 2025.

The most flights from USCA to STL are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 June 12, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from California to St. Louis have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

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.

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

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.

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

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.
8.0
Very good

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

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.

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

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.

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

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?

  • 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 ($78), Spirit Airlines ($81), and Sun Country Air ($111).

  • What are the most popular routes from California to 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 American Airlines (87%), Japan Airlines (87%) and Fiji Airways (87%).

  • 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 $769, our data indicates the cheapest price to be $172. The most popular route (Los Angeles - Lambert-St Louis), is priced around $206.

  • 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
Festus
Alton
Farmington

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.

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$22Average$253FlexibilityNo cancel feeOn-time65%
FrontierCheapest$108Average$222FlexibilityNo cancel feeOn-time62%
DeltaCheapest$184Average$375FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$189Average$387FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$437FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$265Average$565FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$301Average$459FlexibilityNo 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.