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Cheap flights from California to St. Louis from $59

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 1/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
11:28 am - 4:49 pmLAS-STL
3h 21mnonstop
Frontier Logo
5:44 pm - 7:33 pmSTL-LAS
3h 49mnonstop
$87Frontier
Find Deal
jue., ene. 22 - dom., ene. 25
Frontier Logo
3:50 pm - 9:09 pmLAS-STL
3h 19mnonstop
Frontier Logo
9:54 pm - 11:39 pmSTL-LAS
3h 45mnonstop
$107Frontier
Find Deal
mié., nov. 26 - dom., nov. 30
Frontier Logo
6:00 am - 10:02 amLAS-STL
26h 02m1 stop
Frontier Logo
5:44 pm - 7:33 pmSTL-LAS
3h 49mnonstop
$109Frontier
Find Deal
jue., ene. 22 - dom., ene. 25
Multiple Airlines Logo
10:58 pm - 10:33 pmLAS-STL
21h 35m2 stops
Multiple Airlines Logo
7:43 pm - 11:42 pmSTL-LAS
5h 59m1 stop
$171Multiple Airlines
Find Deal
jue., ene. 29 - sáb., feb. 7
Multiple Airlines Logo
11:51 am - 7:50 amLAS-STL
17h 59m2 stops
Multiple Airlines Logo
7:43 pm - 11:42 pmSTL-LAS
5h 59m1 stop
$182Multiple Airlines
Find Deal
jue., feb. 5 - lun., feb. 9
Delta Logo
6:15 am - 2:58 pmSAN-STL
6h 43m1 stop
Delta Logo
6:10 am - 1:50 pmSTL-SAN
9h 40m1 stop
$241Delta
Find Deal
mar., feb. 24 - mié., feb. 25
Delta Logo
11:29 am - 12:50 amSMF-STL
11h 21m2 stops
Delta Logo
1:00 pm - 11:47 pmSTL-SMF
12h 47m2 stops
$274Delta
Find Deal
sáb., dic. 6 - sáb., dic. 13
Alaska Airlines Logo
2:38 pm - 11:59 pmSMF-STL
7h 21m1 stop
Alaska Airlines Logo
7:00 am - 1:44 pmSTL-SMF
8h 44m1 stop
$306Alaska Airlines
Find Deal
dom., dic. 14 - mar., dic. 16
Alaska Airlines Logo
8:59 pm - 2:27 pmSAN-STL
15h 28m1 stop
Alaska Airlines Logo
7:00 am - 3:06 pmSTL-SAN
10h 06m1 stop
$310Alaska Airlines
Find Deal
mar., dic. 2 - mar., dic. 9
Hawaiian Airlines Logo
2:38 pm - 2:27 pmSMF-STL
21h 49m1 stop
Hawaiian Airlines Logo
7:00 am - 11:59 pmSTL-SMF
18h 59m1 stop
$312Hawaiian Airlines
Find Deal
sáb., dic. 6 - sáb., dic. 13

United Airlines flights from California to St. Louis

Our best United Airlines deals on California to St. Louis flight tickets
United Airlines
Dec 7
SAN11:11 amSan Diego
7h 46m
1 stop
STL8:57 pmLambert-St Louis
Dec 9
STL4:37 pmLambert-St Louis
6h 08m
1 stop
SAN8:45 pmSan Diego
$319
Find similar
United Airlines
Dec 31
SMF11:35 pmSacramento Intl
8h 33m
1 stop
STL10:08 amLambert-St Louis
Jan 12
STL8:45 amLambert-St Louis
6h 43m
1 stop
SMF1:28 pmSacramento Intl
$327
Find similar
United Airlines
Nov 24
SMF6:05 amSacramento Intl
13h 49m
2 stops
STL9:54 pmLambert-St Louis
Nov 28
STL6:30 amLambert-St Louis
7h 24m
1 stop
SMF11:54 amSacramento Intl
$589
Find similar

Southwest flights from California to St. Louis

Our best Southwest deals on California to St. Louis flight tickets
Southwest
Dec 16
SAN1:30 pmSan Diego
5h 30m
1 stop
STL9:00 pmLambert-St Louis
Dec 19
STL6:30 pmLambert-St Louis
4h 00m
SAN8:30 pmSan Diego
$344
Find similar
Southwest
Dec 16
SJC8:45 amSan Jose
7h 15m
1 stop
STL6:00 pmLambert-St Louis
Dec 22
STL4:10 pmLambert-St Louis
7h 40m
1 stop
SJC9:50 pmSan Jose
$371
Find similar
Southwest
Dec 14
SMF2:10 pmSacramento Intl
7h 20m
1 stop
STL11:30 pmLambert-St Louis
Dec 16
STL4:00 pmLambert-St Louis
4h 15m
SMF6:15 pmSacramento Intl
$372
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated noviembre 10, 2025.
Use the filters below to find and compare flights from California to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

jue. 1/22

11:28 am-4:49 pm

Nonstop3h 21m

Lambert-St Louis

dom. 1/25

5:44 pm-7:33 pm

Nonstop3h 49m

$87

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

mié. 11/26

3:50 pm-9:09 pm

Nonstop3h 19m

Lambert-St Louis

dom. 11/30

9:54 pm-11:39 pm

Nonstop3h 45m

$107

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

jue. 1/22

6:00 am-10:02 am

1 stop26h 02m

Lambert-St Louis

dom. 1/25

5:44 pm-7:33 pm

Nonstop3h 49m

$109

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

jue. 1/29

10:58 pm-10:33 pm

2 stops21h 35m

Lambert-St Louis

sáb. 2/7

7:43 pm-11:42 pm

1 stop5h 59m

$171

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

jue. 2/5

11:51 am-7:50 am

2 stops17h 59m

Lambert-St Louis

lun. 2/9

7:43 pm-11:42 pm

1 stop5h 59m

$182

San DiegoSt. Louis

SAN - STL

SANSTL

San Diego

mar. 2/24

6:15 am-2:58 pm

1 stop6h 43m

Lambert-St Louis

mié. 2/25

6:10 am-1:50 pm

1 stop9h 40m

$241

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

sáb. 12/6

11:29 am-12:50 am

2 stops11h 21m

Lambert-St Louis

sáb. 12/13

1:00 pm-11:47 pm

2 stops12h 47m

$274

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

dom. 12/14

2:38 pm-11:59 pm

1 stop7h 21m

Lambert-St Louis

mar. 12/16

7:00 am-1:44 pm

1 stop8h 44m

$306

San DiegoSt. Louis

SAN - STL

SANSTL

San Diego

mar. 12/2

8:59 pm-2:27 pm

1 stop15h 28m

Lambert-St Louis

mar. 12/9

7:00 am-3:06 pm

1 stop10h 06m

$310

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

sáb. 12/6

2:38 pm-2:27 pm

1 stop21h 49m

Lambert-St Louis

sáb. 12/13

7:00 am-11:59 pm

1 stop18h 59m

$312

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

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 $336. 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 $391. 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 Monday because tickets tend to average around $431. 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 $375 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 $426 per ticket.

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

Fly from Sacramento Intl 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 $399 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 $305 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 34% 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

$159

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 $159. 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?

  • 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?

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
FrontierPriceFrom $122Free CancellationRating
5.8
3,111 reviews
Search Frontier flights
DeltaPriceFrom $173Free CancellationRating
7.9
8,003 reviews
Search Delta flights
American AirlinesPriceFrom $202Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $245Free CancellationRating
8.0
11,260 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,011 reviews
Search United Airlines flights
SouthwestPriceFrom $283Free CancellationRating
8.0
4,236 reviews
Search Southwest flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Wentzville
Fenton
Collinsville
St. Peters
Alton
Farmington
Festus
Glencoe
Edwardsville
Clayton
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

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