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Cheap flights from St. Louis to California from $43

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to California departing on 11/8. 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

Frontier Logo
4:51 pm - 6:30 pmSTL-LAS
3h 39mnonstop
Frontier Logo
8:48 pm - 9:07 amLAS-STL
10h 19m1 stop
$137Frontier
Find Deal
sáb., nov. 1 - jue., nov. 6
Frontier Logo
4:00 pm - 9:23 pmSTL-LAS
7h 23m1 stop
Frontier Logo
12:59 am - 9:07 amLAS-STL
6h 08m1 stop
$139Frontier
Find Deal
lun., oct. 6 - lun., oct. 6
United Airlines Logo
1:35 pm - 7:00 pmSTL-LAS
7h 25m1 stop
United Airlines Logo
5:20 am - 12:39 pmLAS-STL
5h 19m1 stop
$167United Airlines
Find Deal
mar., dic. 9 - sáb., dic. 13
Southwest Logo
5:55 am - 9:40 amSTL-SFO
5h 45m1 stop
Southwest Logo
5:30 am - 1:20 pmSFO-STL
5h 50m1 stop
$183Southwest
Find Deal
mar., oct. 7 - mié., oct. 8
American Airlines Logo
7:16 am - 2:10 pmSTL-SAN
8h 54m1 stop
American Airlines Logo
9:42 am - 7:30 pmSAN-STL
7h 48m1 stop
$183American Airlines
Find Deal
vie., oct. 31 - mar., nov. 4
United Airlines Logo
5:28 pm - 10:43 pmSTL-SMF
7h 15m1 stop
United Airlines Logo
8:45 am - 4:32 pmSMF-STL
5h 47m1 stop
$183United Airlines
Find Deal
mié., oct. 22 - sáb., oct. 25
Southwest Logo
6:15 am - 12:20 pmSTL-SFO
8h 05m2 stops
Southwest Logo
5:30 am - 1:20 pmSFO-STL
5h 50m1 stop
$188Southwest
Find Deal
mar., oct. 7 - mié., oct. 8
American Airlines Logo
5:20 am - 10:12 amSTL-SMF
6h 52m1 stop
American Airlines Logo
11:56 am - 11:18 pmSMF-STL
9h 22m2 stops
$188American Airlines
Find Deal
sáb., oct. 25 - mar., oct. 28
Delta Logo
8:53 am - 12:50 pmSTL-SMF
5h 57m1 stop
Delta Logo
5:30 am - 1:39 pmSMF-STL
6h 09m1 stop
$257Delta
Find Deal
mar., oct. 28 - dom., nov. 2
Delta Logo
5:34 pm - 11:43 pmSTL-SAN
8h 09m1 stop
Delta Logo
6:20 am - 4:49 pmSAN-STL
8h 29m1 stop
$257Delta
Find Deal
mar., dic. 2 - sáb., dic. 6

United Airlines flights from St. Louis to California

Our best United Airlines deals on St. Louis to California flight tickets
United Airlines
Dec 9
STL1:35 pmLambert-St Louis
7h 25m
1 stop
LAS7:00 pmLas Vegas Harry Reid Intl
Dec 13
LAS5:20 amLas Vegas Harry Reid Intl
5h 19m
1 stop
STL12:39 pmLambert-St Louis
$167
Find similar
United Airlines
Oct 22
STL5:28 pmLambert-St Louis
7h 15m
1 stop
SMF10:43 pmSacramento Intl
Oct 25
SMF8:45 amSacramento Intl
5h 47m
1 stop
STL4:32 pmLambert-St Louis
$183
Find similar
United Airlines
Oct 27
STL4:43 pmLambert-St Louis
6h 11m
1 stop
SAN8:54 pmSan Diego
Nov 4
SAN11:02 amSan Diego
8h 52m
2 stops
STL9:54 pmLambert-St Louis
$188
Find similar

Frontier flights from St. Louis to California

Our best Frontier deals on St. Louis to California flight tickets
Frontier
Nov 1
STL4:51 pmLambert-St Louis
3h 39m
LAS6:30 pmLas Vegas Harry Reid Intl
Nov 6
LAS8:48 pmLas Vegas Harry Reid Intl
10h 19m
1 stop
STL9:07 amLambert-St Louis
$137
Find similar
Frontier
Oct 6
STL4:00 pmLambert-St Louis
7h 23m
1 stop
LAS9:23 pmLas Vegas Harry Reid Intl
Oct 6
LAS12:59 amLas Vegas Harry Reid Intl
6h 08m
1 stop
STL9:07 amLambert-St Louis
$139
Find similar
Frontier
Oct 3
STL7:55 pmLambert-St Louis
21h 10m
1 stop
LAS3:05 pmLas Vegas Harry Reid Intl
Oct 6
LAS12:59 amLas Vegas Harry Reid Intl
6h 08m
1 stop
STL9:07 amLambert-St Louis
$141
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to California 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 septiembre 16, 2025.
Use the filters below to find and compare flights from St. Louis to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

sáb. 11/1

4:51 pm-6:30 pm

Nonstop3h 39m

Las Vegas Harry Reid Intl

jue. 11/6

8:48 pm-9:07 am

1 stop10h 19m

$137

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

lun. 10/6

4:00 pm-9:23 pm

1 stop7h 23m

Las Vegas Harry Reid Intl

lun. 10/6

12:59 am-9:07 am

1 stop6h 08m

$139

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

mar. 12/9

1:35 pm-7:00 pm

1 stop7h 25m

Las Vegas Harry Reid Intl

sáb. 12/13

5:20 am-12:39 pm

1 stop5h 19m

$167

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

mar. 10/7

5:55 am-9:40 am

1 stop5h 45m

San Francisco

mié. 10/8

5:30 am-1:20 pm

1 stop5h 50m

$183

St. LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

vie. 10/31

7:16 am-2:10 pm

1 stop8h 54m

San Diego

mar. 11/4

9:42 am-7:30 pm

1 stop7h 48m

$183

St. LouisSacramento

STL - SMF

STLSMF

Lambert-St Louis

mié. 10/22

5:28 pm-10:43 pm

1 stop7h 15m

Sacramento Intl

sáb. 10/25

8:45 am-4:32 pm

1 stop5h 47m

$183

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

mar. 10/7

6:15 am-12:20 pm

2 stops8h 05m

San Francisco

mié. 10/8

5:30 am-1:20 pm

1 stop5h 50m

$188

St. LouisSacramento

STL - SMF

STLSMF

Lambert-St Louis

sáb. 10/25

5:20 am-10:12 am

1 stop6h 52m

Sacramento Intl

mar. 10/28

11:56 am-11:18 pm

2 stops9h 22m

$188

St. LouisSacramento

STL - SMF

STLSMF

Lambert-St Louis

mar. 10/28

8:53 am-12:50 pm

1 stop5h 57m

Sacramento Intl

dom. 11/2

5:30 am-1:39 pm

1 stop6h 09m

$257

St. LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

mar. 12/2

5:34 pm-11:43 pm

1 stop8h 09m

San Diego

sáb. 12/6

6:20 am-4:49 pm

1 stop8h 29m

$257

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 California from

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

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 California?

The month of January is another great option to travel to California, with average flight prices from St. Louis averaging around $365.

What is the cheapest day to depart on your flight to California?

The cheapest day to depart from St. Louis to California is on a Wednesday. Travelers who choose to depart for California on a Wednesday will often find tickets for as low as $470. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to California on Monday is $621.

What is the cheapest time of day to depart on your flight to California?

The cheapest time of day to fly to California is at noon when flights can be purchased for as low as $334. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $540 on average. Flights to California from St. Louis in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Fly from Lambert-St Louis to Sacramento Intl for the best Lambert-St Louis - California flight prices

How far in advance should I book a flight to California?

You are more likely to see cheaper flights to California from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to California for around $394 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to California from St. Louis for as low as $302 on momondo.

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

There are 4 cabin classes available to choose from on Lambert-St Louis to California 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 St. Louis to California flights?

You could potentially save up to 33% on your flight if you consider stops on a St. Louis to California flight.

Cheap St. Louis to California flight deals and tips

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

Best Price Found

$162

Fastest flight time

3h 25m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in California

1 airport
The best one-way flight to California from St. Louis in the past 72 hours is $162. The best round-trip flight deal from St. Louis to California found on momondo in the last 72 hours is $341.
The fastest flight from St. Louis to California takes 3h 25m
Direct flights go from St. Louis to California on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Southwest.
There is 1 airport near California: Las Vegas Harry Reid Intl (LAS)
Search flight deals

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

    Prices for flights from Lambert-St Louis Airport to California refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to California.

  • What documentation or ID do you need to fly to California?

    The travel and health documents you'll need for your trip to California may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at California. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from St. Louis to California

Compare and see reviews for airlines that fly from St. Louis to California with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $95Free CancellationRating
5.8
3,174 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $172Free CancellationRating
6.3
8,019 reviews
Search Spirit Airlines flights
DeltaPriceFrom $181Free CancellationRating
7.9
7,957 reviews
Search Delta flights
American AirlinesPriceFrom $202Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
SouthwestPriceFrom $256Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $296Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

Why use momondo?

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

Finding the right flight to California from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to California quick and easy, saving you time and money.

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

Yes. All flights to California from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential St. Louis to California 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 St. Louis to California right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to California from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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