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Cheap flights from St. Louis to California from $54

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 2/28. 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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0 bags

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Find the cheapest flights from St. Louis to California

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:11 pm - 11:59 pm
STL
-
LAS
3h 48mnonstop
Frontier Logo
6:05 am - 11:19 am
LAS
-
STL
3h 14mnonstop
$120Frontier
Mon, Mar 2 - Fri, Mar 6
Frontier Logo
2:51 pm - 11:44 pm
STL
-
LAS
10h 53m
1 stop
Frontier Logo
6:05 am - 11:19 am
LAS
-
STL
3h 14mnonstop
$123Frontier
Sat, Feb 28 - Fri, Mar 6
Frontier Logo
8:06 pm - 10:08 pm
STL
-
LAS
4h 02mnonstop
Frontier Logo
6:05 am - 11:19 am
LAS
-
STL
3h 14mnonstop
$125Frontier
Sun, Mar 22 - Fri, Mar 27
Frontier Logo
6:41 pm - 8:31 pm
STL
-
LAS
3h 50mnonstop
Frontier Logo
11:03 pm - 10:27 pm
LAS
-
STL
21h 24m
1 stop
$127Frontier
Sat, Feb 28 - Tue, Mar 3
Delta Logo
6:12 pm - 11:42 pm
STL
-
SMF
7h 30m
1 stop
Delta Logo
6:15 am - 2:29 pm
SMF
-
STL
6h 14m
1 stop
$237Delta
Fri, Mar 27 - Tue, Apr 28
Delta Logo
7:02 am - 11:42 am
STL
-
BUR
6h 40m
1 stop
Delta Logo
1:59 pm - 11:34 pm
BUR
-
STL
7h 35m
1 stop
$237Delta
Wed, Apr 15 - Wed, Apr 22
American Airlines Logo
4:13 pm - 11:59 pm
STL
-
SMF
9h 46m
2 stops
American Airlines Logo
6:00 am - 3:28 pm
SMF
-
STL
7h 28m
1 stop
$242American Airlines
Tue, Feb 24 - Sat, Feb 28
United Airlines Logo
9:55 am - 8:54 pm
STL
-
BUR
12h 59m
2 stops
United Airlines Logo
7:25 am - 4:27 pm
BUR
-
STL
7h 02m
1 stop
$242United Airlines
Tue, Feb 24 - Sat, Feb 28
Alaska Airlines Logo
2:47 pm - 9:14 pm
STL
-
SMF
8h 27m
1 stop
Alaska Airlines Logo
8:30 am - 11:59 pm
SMF
-
STL
13h 29m
1 stop
$257Alaska Airlines
Thu, Feb 26 - Sun, Mar 1
United Airlines Logo
6:00 pm - 10:35 pm
STL
-
SAN
6h 35m
1 stop
United Airlines Logo
11:30 am - 10:14 pm
SAN
-
STL
8h 44m
2 stops
$266United Airlines
Sun, Mar 1 - Tue, Mar 3

Southwest flights from St. Louis to California

Our best Southwest deals on St. Louis to California flight tickets
Southwest
Mar 4
STL5:55 amLambert-St Louis
9h 45m
2 stops
SNA1:40 pmSanta Ana J. Wayne/Orange Cnty
Mar 7
SNA6:10 pmSanta Ana J. Wayne/Orange Cnty
5h 40m
1 stop
STL1:50 amLambert-St Louis
$300
Southwest
Mar 25
STL2:15 pmLambert-St Louis
8h 35m
2 stops
SJC8:50 pmSan Jose
Apr 1
SJC12:45 pmSan Jose
5h 30m
1 stop
STL8:15 pmLambert-St Louis
$302
Southwest
Mar 6
STL5:25 amLambert-St Louis
7h 05m
1 stop
SJC10:30 amSan Jose
Mar 10
SJC9:30 amSan Jose
8h 25m
2 stops
STL7:55 pmLambert-St Louis
$305

Frontier flights from St. Louis to California

Our best Frontier deals on St. Louis to California flight tickets
Frontier
Mar 2
STL10:11 pmLambert-St Louis
3h 48m
LAS11:59 pmLas Vegas Harry Reid Intl
Mar 6
LAS6:05 amLas Vegas Harry Reid Intl
3h 14m
STL11:19 amLambert-St Louis
$120
Frontier
Feb 28
STL2:51 pmLambert-St Louis
10h 53m
1 stop
LAS11:44 pmLas Vegas Harry Reid Intl
Mar 6
LAS6:05 amLas Vegas Harry Reid Intl
3h 14m
STL11:19 amLambert-St Louis
$123
Frontier
Mar 22
STL8:06 pmLambert-St Louis
4h 02m
LAS10:08 pmLas Vegas Harry Reid Intl
Mar 27
LAS6:05 amLas Vegas Harry Reid Intl
3h 14m
STL11:19 amLambert-St Louis
$125

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 February 11, 2026.
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

Mon 3/2

10:11 pm-11:59 pm

Nonstop3h 48m

Las Vegas Harry Reid Intl

Fri 3/6

6:05 am-11:19 am

Nonstop3h 14m

$120

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 2/28

2:51 pm-11:44 pm

1 stop10h 53m

Las Vegas Harry Reid Intl

Fri 3/6

6:05 am-11:19 am

Nonstop3h 14m

$123

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 3/22

8:06 pm-10:08 pm

Nonstop4h 02m

Las Vegas Harry Reid Intl

Fri 3/27

6:05 am-11:19 am

Nonstop3h 14m

$125

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 2/28

6:41 pm-8:31 pm

Nonstop3h 50m

Las Vegas Harry Reid Intl

Tue 3/3

11:03 pm-10:27 pm

1 stop21h 24m

$127

St. LouisSacramento

STL - SMF

STLSMF

Lambert-St Louis

Fri 3/27

6:12 pm-11:42 pm

1 stop7h 30m

Sacramento Intl

Tue 4/28

6:15 am-2:29 pm

1 stop6h 14m

$237

St. LouisBurbank

STL - BUR

STLBUR

Lambert-St Louis

Wed 4/15

7:02 am-11:42 am

1 stop6h 40m

Burbank Bob Hope

Wed 4/22

1:59 pm-11:34 pm

1 stop7h 35m

$237

St. LouisSacramento

STL - SMF

STLSMF

Lambert-St Louis

Tue 2/24

4:13 pm-11:59 pm

2 stops9h 46m

Sacramento Intl

Sat 2/28

6:00 am-3:28 pm

1 stop7h 28m

$242

St. LouisBurbank

STL - BUR

STLBUR

Lambert-St Louis

Tue 2/24

9:55 am-8:54 pm

2 stops12h 59m

Burbank Bob Hope

Sat 2/28

7:25 am-4:27 pm

1 stop7h 02m

$242

St. LouisSacramento

STL - SMF

STLSMF

Lambert-St Louis

Thu 2/26

2:47 pm-9:14 pm

1 stop8h 27m

Sacramento Intl

Sun 3/1

8:30 am-11:59 pm

1 stop13h 29m

$257

St. LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

Sun 3/1

6:00 pm-10:35 pm

1 stop6h 35m

San Diego

Tue 3/3

11:30 am-10:14 pm

2 stops8h 44m

$266

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 October is another great option to travel to California, with average flight prices from St. Louis averaging around $314.

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 Thursday. Travelers who choose to depart for California on a Thursday will often find tickets for as low as $422. 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 $573.

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

The cheapest time of day to fly to California is in the afternoon when flights can be purchased for as low as $335. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $515 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 San Diego 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 $373 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 $305 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 7% 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

$179

Fastest flight time

3h 25m

Direct flights

Every day

Airports in California

418 airports
The best one-way flight to California from St. Louis in the past 72 hours is $179. The best round-trip flight deal from St. Louis to California found on momondo in the last 72 hours is $372.
The fastest flight from St. Louis to California takes 3h 25m
Direct flights go from St. Louis to California every day.
There are 418 airports in California. From St. Louis there are direct flights to San Diego (SAN), Los Angeles (LAX), 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 $88Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
DeltaPriceFrom $138Free CancellationRating
7.9
8,181 reviews
Search Delta flights
Spirit AirlinesPriceFrom $172Free CancellationRating
6.3
8,445 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $180Free CancellationRating
7.2
11,271 reviews
Search American Airlines flights
United AirlinesPriceFrom $182Free CancellationRating
7.4
9,281 reviews
Search United Airlines flights
SouthwestPriceFrom $259Free CancellationRating
8.0
4,280 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $296Free CancellationRating
8.0
11,878 reviews
Search Alaska Airlines flights
JetBluePriceFrom $304Free CancellationRating
7.2
2,895 reviews
Search JetBlue 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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