What is the cheapest airline that flies from California to Lambert-St Louis?

Frontier, Spirit Airlines, and American Airlines are the most popular carriers operating from California to Lambert-St Louis

How many flights depart from California to St. Louis on average per day?

23 flights are operational daily from California to St. Louis as of September 2025. The most popular departure time for this route is 5:00PM, with 57% of flights per day taking off in the afternoon.

What airlines fly to St. Louis?

Southwest, American Airlines and United Airlines are the top three most popular airlines that fly to St. Louis from California according to our data. Southwest is the first choice among our users, with 38% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 6 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

How many flights depart from California to St. Louis on average per week?

The number of flights available between California and St. Louis is 167 per week as of September 2025. The most frequent departure day is Mon, with 22% of weekly flights leaving on this day.

How long does it take to fly to St. Louis?

Flight times from California to St. Louis vary, but if you’re flying out of Los Angeles and flying into St. Louis (one of the most popular routes), then the duration is 3h 25m on average. Another popular route from California to St. Louis is flying from San Diego to St. Louis, which will take roughly 3h 30m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from California to Lambert-St Louis Airport?

Prices for flights from California to Lambert-St Louis Airport are refreshed on a daily basis.

How many operators does momondo search for flights from California to Lambert-St Louis Airport?

As of September 2025, there are 6 operators available to choose from for flights from California to Lambert-St Louis Airport.

How old do you have to be to fly from California to Lambert-St Louis Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from California to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$72 Cheap Flights from California to St. Louis in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from California to St. Louis

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

2:47 pm - 8:12 pmLAS-STL

3h 25mnonstop

7:45 pm - 11:29 pmSTL-LAS

5h 44m1 stop

$99Frontier

Find Deal

Fri, Nov 7 - Sat, Nov 8

8:32 am - 1:57 pmLAS-STL

3h 25mnonstop

11:07 am - 9:28 pmSTL-LAS

12h 21m1 stop

$112Frontier

Find Deal

Thu, Oct 30 - Thu, Nov 6

5:46 pm - 1:57 pmSNA-STL

18h 11m1 stop

2:42 pm - 8:59 pmSTL-SNA

8h 17m1 stop

$158Multiple Airlines

Find Deal

Thu, Nov 13 - Mon, Nov 17

7:00 am - 8:12 pmBUR-STL

11h 12m1 stop

9:07 pm - 9:59 pmSTL-BUR

26h 52m1 stop

$164Multiple Airlines

Find Deal

Fri, Nov 14 - Mon, Nov 17

12:59 am - 9:23 amLAS-STL

6h 24m1 stop

6:00 pm - 9:59 pmSTL-LAS

5h 59m1 stop

$167United Airlines

Find Deal

Wed, Feb 18 - Mon, Feb 23

11:11 am - 8:57 pmSAN-STL

7h 46m1 stop

1:35 pm - 5:34 pmSTL-SAN

5h 59m1 stop

$183United Airlines

Find Deal

Thu, Dec 11 - Tue, Dec 16

3:16 pm - 11:54 pmSMF-STL

6h 38m1 stop

8:42 am - 2:26 pmSTL-SMF

7h 44m1 stop

$183American Airlines

Find Deal

Wed, Oct 15 - Sat, Oct 18

2:05 pm - 11:56 pmSMF-STL

7h 51m1 stop

7:00 am - 1:13 pmSTL-SMF

8h 13m1 stop

$240Alaska Airlines

Find Deal

Tue, Mar 3 - Wed, Mar 4

11:45 am - 11:56 pmBUR-STL

10h 11m1 stop

7:00 am - 3:15 pmSTL-BUR

10h 15m1 stop

$240Alaska Airlines

Find Deal

Tue, Mar 3 - Wed, Mar 4

11:18 pm - 8:09 amSFO-STL

6h 51m1 stop

6:52 am - 1:37 pmSTL-SFO

8h 45m1 stop

$270American Airlines

Find Deal

Tue, Nov 25 - Tue, Dec 9

Frontier flights from California to St. Louis

Our best Frontier deals on California to St. Louis flight tickets

Frontier

Nov 7

LAS2:47 pmLas Vegas Harry Reid Intl

3h 25m

STL8:12 pmLambert-St Louis

Nov 8

STL7:45 pmLambert-St Louis

5h 44m

1 stop

LAS11:29 pmLas Vegas Harry Reid Intl

$99

Find similar

Frontier

Oct 30

LAS8:32 amLas Vegas Harry Reid Intl

3h 25m

STL1:57 pmLambert-St Louis

Nov 6

STL11:07 amLambert-St Louis

12h 21m

1 stop

LAS9:28 pmLas Vegas Harry Reid Intl

$112

Find similar

Frontier

Oct 13

LAS7:00 amLas Vegas Harry Reid Intl

10h 26m

1 stop

STL7:26 pmLambert-St Louis

Oct 20

STL9:59 pmLambert-St Louis

3h 38m

LAS11:37 pmLas Vegas Harry Reid Intl

$120

Find similar

Alaska Airlines flights from California to St. Louis

Our best Alaska Airlines deals on California to St. Louis flight tickets

Alaska Airlines

Mar 3

SMF2:05 pmSacramento Intl

7h 51m

1 stop

STL11:56 pmLambert-St Louis

Mar 4

STL7:00 amLambert-St Louis

8h 13m

1 stop

SMF1:13 pmSacramento Intl

$240

Find similar

Alaska Airlines

Dec 11

SAN11:41 amSan Diego

10h 18m

1 stop

STL11:59 pmLambert-St Louis

Dec 15

STL7:00 amLambert-St Louis

10h 06m

1 stop

SAN3:06 pmSan Diego

$256

Find similar

Alaska Airlines

Mar 3

BUR11:45 amBurbank Bob Hope

10h 11m

1 stop

STL11:56 pmLambert-St Louis

Mar 4

STL2:55 pmLambert-St Louis

9h 04m

1 stop

BUR9:59 pmBurbank Bob Hope

$273

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Fri 11/7

2:47 pm-8:12 pm

Nonstop3h 25m

Lambert-St Louis

Sat 11/8

7:45 pm-11:29 pm

1 stop5h 44m

$99

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 10/30

8:32 am-1:57 pm

Nonstop3h 25m

Lambert-St Louis

Thu 11/6

11:07 am-9:28 pm

1 stop12h 21m

$112

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Thu 11/13

5:46 pm-1:57 pm

1 stop18h 11m

Lambert-St Louis

Mon 11/17

2:42 pm-8:59 pm

1 stop8h 17m

$158

BurbankSt. Louis

BUR - STL

BURSTL

Burbank Bob Hope

Fri 11/14

7:00 am-8:12 pm

1 stop11h 12m

Lambert-St Louis

Mon 11/17

9:07 pm-9:59 pm

1 stop26h 52m

$164

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 2/18

12:59 am-9:23 am

1 stop6h 24m

Lambert-St Louis

Mon 2/23

6:00 pm-9:59 pm

1 stop5h 59m

$167

San DiegoSt. Louis

SAN - STL

SANSTL

San Diego

Thu 12/11

11:11 am-8:57 pm

1 stop7h 46m

Lambert-St Louis

Tue 12/16

1:35 pm-5:34 pm

1 stop5h 59m

$183

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 10/15

3:16 pm-11:54 pm

1 stop6h 38m

Lambert-St Louis

Sat 10/18

8:42 am-2:26 pm

1 stop7h 44m

$183

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 3/3

2:05 pm-11:56 pm

1 stop7h 51m

Lambert-St Louis

Wed 3/4

7:00 am-1:13 pm

1 stop8h 13m

$240

BurbankSt. Louis

BUR - STL

BURSTL

Burbank Bob Hope

Tue 3/3

11:45 am-11:56 pm

1 stop10h 11m

Lambert-St Louis

Wed 3/4

7:00 am-3:15 pm

1 stop10h 15m

$240

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

Tue 11/25

11:18 pm-8:09 am

1 stop6h 51m

Lambert-St Louis

Tue 12/9

6:52 am-1:37 pm

1 stop8h 45m

$270

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from California to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to St. Louis?

In general, October is the cheapest month to fly from California to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $355. The month of April is another great option to travel to St. Louis, with average flight prices from California averaging around $359.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Thursday when prices can be found for as low as $398. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $451. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from California in the evening is the least expensive time of day to depart. momondo users have found prices as low as $389 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $428 per ticket.

What is the cheapest California to Lambert-St Louis flight route?

Fly from Burbank Bob Hope to Lambert-St Louis for the best California - Lambert-St Louis flight prices

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from California when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $403 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from California for as low as $316 on momondo.

What cabin class options are available on California to Lambert-St Louis flights?

There are 4 cabin classes available to choose from on California to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on California to St. Louis flights?

You could potentially save up to 27% on your flight if you consider stops on a California to St. Louis flight.

Cheap California to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from California to St. Louis

Best Price Found	$178
Fastest flight time	3h 05m
Direct flights	Every day
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from California in the past 72 hours is $178. The best round-trip flight deal from California to St. Louis found on momondo in the last 72 hours is $296.

The fastest flight from California to St. Louis takes 3h 05m

Direct flights go from California to St. Louis every day.

There is 1 airport near St. Louis: Lambert-St Louis (STL)

Search flight deals

When did momondo last update prices for flights from California to Lambert-St Louis Airport?
Prices for flights from California to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from California to Lambert-St Louis Airport?
As of September 2025, there are 6 operators available to choose from for flights from California to Lambert-St Louis Airport.
How old do you have to be to fly from California to Lambert-St Louis Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from California to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from California to St. Louis?
Based on momondo bookings for flights between California and St. Louis, the leading plane model is Embraer 175, making up 23.53% of the total bookings. Other popular models include Boeing 737 MAX 8 with 15.70%, Boeing 737-800 Passenger/BBJ2 (winglets) with 12.48%, and Boeing 737-700 Passenger/BBJ1 (winglets) with 10.54%.

Best airlines flying from California to St. Louis

Compare and see reviews for airlines that fly from California to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $92	Free Cancellation	Rating 5.8 3,173 reviews	Search Frontier flights
Delta	PriceFrom $184	Free Cancellation	Rating 7.9 7,961 reviews	Search Delta flights
American Airlines	PriceFrom $202	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $246	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $257	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $284	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights

St. Charles

Chesterfield

Hermann

Fairview Heights

Florissant

Maryland Heights

O'Fallon

Fenton

Collinsville

Wentzville

Alton

St. Peters

Farmington

Festus

Glencoe

Clayton

Edwardsville

Eureka

Litchfield

Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from California to St. Louis?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from California to St. Louis. momondo saves you time and could save you money on your trip.

Can I find flights from California to St. Louis with flexible booking policies on momondo?

Flights from California to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from California to St. Louis?

Once all potential California to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from California to St. Louis right now. Can momondo alert me if prices change?

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from California and alert you when they change.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Fri 10/17

Fri 10/24

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Cheap flights from California to St. Louis from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to St. Louis departing on 10/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from California to St. Louis

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Frontier flights from California to St. Louis

Our best Frontier deals on California to St. Louis flight tickets

Alaska Airlines flights from California to St. Louis

Our best Alaska Airlines deals on California to St. Louis flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from California to St. Louis that are best for you.

See travel insights to St. Louis from

How to get the cheapest flight ticket from California to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to St. Louis?

What is the cheapest day to depart on your flight to St. Louis?

What is the cheapest time of day to depart on your flight to St. Louis?

What is the cheapest California to Lambert-St Louis flight route?

Fly from Burbank Bob Hope to Lambert-St Louis for the best California - Lambert-St Louis flight prices

How far in advance should I book a flight to St. Louis?

What cabin class options are available on California to Lambert-St Louis flights?

There are 4 cabin classes available to choose from on California to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on California to St. Louis flights?

You could potentially save up to 27% on your flight if you consider stops on a California to St. Louis flight.

What is the cheapest airline that flies from California to Lambert-St Louis?

Frontier, Spirit Airlines, and American Airlines are the most popular carriers operating from California to Lambert-St Louis

What airlines fly to St. Louis?

How many flights depart from California to St. Louis on average per day?

23 flights are operational daily from California to St. Louis as of September 2025. The most popular departure time for this route is 5:00PM, with 57% of flights per day taking off in the afternoon.

How many flights depart from California to St. Louis on average per week?

The number of flights available between California and St. Louis is 167 per week as of September 2025. The most frequent departure day is Mon, with 22% of weekly flights leaving on this day.

How long does it take to fly to St. Louis?

Cheap California to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from California to St. Louis

Best Price Found

Fastest flight time

Direct flights

Airports in St. Louis

When did momondo last update prices for flights from California to Lambert-St Louis Airport?

How many operators does momondo search for flights from California to Lambert-St Louis Airport?

How old do you have to be to fly from California to Lambert-St Louis Airport?

What documentation or ID do you need to fly to Lambert-St Louis Airport?

What is the most popular plane model from California to St. Louis?

Best airlines flying from California to St. Louis

Compare and see reviews for airlines that fly from California to St. Louis with momondo

Traveling to a place near St. Louis?

Why use momondo?

Why should I use momondo to find a flight deal from California to St. Louis?

Can I find flights from California to St. Louis with flexible booking policies on momondo?

How can momondo help me find flights from California to St. Louis?

I’m not ready to book a flight from California to St. Louis right now. Can momondo alert me if prices change?

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Missouri