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Cheap flights from St. Louis to California 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 St. Louis to California departing on 5/27. 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
4:19 pm - 11:14 am
STL
-
LAS
20h 55m
1 stop
Frontier Logo
12:59 am - 2:48 pm
LAS
-
STL
11h 49m
1 stop
$159Frontier
Fri, May 8 - Sat, May 9
Frontier Logo
12:16 pm - 7:32 pm
STL
-
ONT
9h 16m
1 stop
Frontier Logo
6:00 am - 7:23 pm
ONT
-
STL
11h 23m
1 stop
$160Frontier
Thu, May 7 - Sun, May 24
Frontier Logo
8:08 pm - 9:09 am
STL
-
SNA
15h 01m
1 stop
Frontier Logo
8:14 pm - 6:06 pm
SNA
-
STL
19h 52m
1 stop
$160Frontier
Sat, May 9 - Mon, May 11
Frontier Logo
3:33 pm - 11:54 pm
STL
-
LAS
10h 21m
1 stop
Frontier Logo
6:00 am - 6:04 pm
LAS
-
STL
10h 04m
1 stop
$160Frontier
Thu, May 7 - Sat, May 9
Multiple Airlines Logo
9:18 pm - 7:46 am
STL
-
BUR
12h 28m
1 stop
Multiple Airlines Logo
7:05 am - 4:37 pm
BUR
-
STL
7h 32m
1 stop
$254Multiple Airlines
Sat, May 9 - Wed, May 13
Multiple Airlines Logo
7:00 am - 2:17 pm
STL
-
SMF
9h 17m
1 stop
Multiple Airlines Logo
5:22 pm - 8:26 pm
SMF
-
STL
25h 04m
1 stop
$269Multiple Airlines
Wed, Apr 15 - Wed, May 27
Alaska Airlines Logo
7:00 am - 2:21 pm
STL
-
SFO
9h 21m
1 stop
Alaska Airlines Logo
9:00 am - 11:59 pm
SFO
-
STL
12h 59m
1 stop
$327Alaska Airlines
Wed, Apr 22 - Wed, Apr 29
Southwest Logo
1:45 pm - 6:15 pm
STL
-
SJC
6h 30m
1 stop
Southwest Logo
6:35 am - 1:50 pm
SJC
-
STL
5h 15m
1 stop
$352Southwest
Tue, May 12 - Tue, May 19
Southwest Logo
2:35 pm - 8:25 pm
STL
-
SJC
7h 50m
1 stop
Southwest Logo
9:45 am - 5:55 pm
SJC
-
STL
6h 10m
1 stop
$357Southwest
Sat, Apr 25 - Tue, Apr 28
American Airlines Logo
9:34 am - 3:47 pm
STL
-
SJC
8h 13m
2 stops
American Airlines Logo
12:46 pm - 11:46 pm
SJC
-
STL
9h 00m
2 stops
$368American Airlines
Sat, Apr 25 - Sat, May 2

Frontier flights from St. Louis to California

Our best Frontier deals on St. Louis to California flight tickets
Frontier
May 8
STL4:19 pmLambert-St Louis
20h 55m
1 stop
LAS11:14 amLas Vegas Harry Reid Intl
May 9
LAS12:59 amLas Vegas Harry Reid Intl
11h 49m
1 stop
STL2:48 pmLambert-St Louis
$159
Frontier
May 7
STL3:33 pmLambert-St Louis
10h 21m
1 stop
LAS11:54 pmLas Vegas Harry Reid Intl
May 9
LAS6:00 amLas Vegas Harry Reid Intl
10h 04m
1 stop
STL6:04 pmLambert-St Louis
$160
Frontier
May 7
STL3:33 pmLambert-St Louis
10h 21m
1 stop
LAS11:54 pmLas Vegas Harry Reid Intl
May 9
LAS12:59 amLas Vegas Harry Reid Intl
11h 49m
1 stop
STL2:48 pmLambert-St Louis
$161

Southwest flights from St. Louis to California

Our best Southwest deals on St. Louis to California flight tickets
Southwest
Apr 24
STL2:10 pmLambert-St Louis
6h 45m
1 stop
SAN6:55 pmSan Diego
Apr 27
SAN1:50 pmSan Diego
7h 25m
2 stops
STL11:15 pmLambert-St Louis
$302
Southwest
May 6
STL5:35 amLambert-St Louis
7h 45m
2 stops
SAN11:20 amSan Diego
May 11
SAN8:35 amSan Diego
7h 05m
2 stops
STL5:40 pmLambert-St Louis
$307
Southwest
Apr 21
STL5:30 amLambert-St Louis
5h 25m
1 stop
SAN8:55 amSan Diego
May 5
SAN7:05 amSan Diego
3h 30m
STL12:35 pmLambert-St Louis
$311

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 April 1, 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

Cheapest round-trip

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Fri 5/8

4:19 pm-11:14 am

1 stop20h 55m

Las Vegas Harry Reid Intl

Sat 5/9

12:59 am-2:48 pm

1 stop11h 49m

$159

St. LouisOntario

STL - ONT

STLONT

Lambert-St Louis

Thu 5/7

12:16 pm-7:32 pm

1 stop9h 16m

Ontario

Sun 5/24

6:00 am-7:23 pm

1 stop11h 23m

$160

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Sat 5/9

8:08 pm-9:09 am

1 stop15h 01m

Santa Ana J. Wayne/Orange Cnty

Mon 5/11

8:14 pm-6:06 pm

1 stop19h 52m

$160

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Thu 5/7

3:33 pm-11:54 pm

1 stop10h 21m

Las Vegas Harry Reid Intl

Sat 5/9

6:00 am-6:04 pm

1 stop10h 04m

$160

St. LouisBurbank

STL - BUR

STLBUR

Lambert-St Louis

Sat 5/9

9:18 pm-7:46 am

1 stop12h 28m

Burbank Bob Hope

Wed 5/13

7:05 am-4:37 pm

1 stop7h 32m

$254

St. LouisSacramento

STL - SMF

STLSMF

Lambert-St Louis

Wed 4/15

7:00 am-2:17 pm

1 stop9h 17m

Sacramento Intl

Wed 5/27

5:22 pm-8:26 pm

1 stop25h 04m

$269

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Wed 4/22

7:00 am-2:21 pm

1 stop9h 21m

San Francisco

Wed 4/29

9:00 am-11:59 pm

1 stop12h 59m

$327
Quickest round-trip

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Tue 5/12

1:45 pm-6:15 pm

1 stop6h 30m

San Jose

Tue 5/19

6:35 am-1:50 pm

1 stop5h 15m

$352

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Sat 4/25

2:35 pm-8:25 pm

1 stop7h 50m

San Jose

Tue 4/28

9:45 am-5:55 pm

1 stop6h 10m

$357

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Sat 4/25

9:34 am-3:47 pm

2 stops8h 13m

San Jose

Sat 5/2

12:46 pm-11:46 pm

2 stops9h 00m

$368

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 $318.

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 $416. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to California on Sunday is $541.

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 $325. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $505 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 Los Angeles 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 $377 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 $289 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?

No. A direct flight is the cheapest option for a flight between St. Louis to California.

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

$218

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 $218. The best round-trip flight deal from St. Louis to California found on momondo in the last 72 hours is $379.
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 Las Vegas Harry Reid Intl (LAS).
Search flight deals

Frequently asked questions about flying from St. Louis to California

  • 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
3,006 reviews
Search Frontier flights
DeltaPriceFrom $118Free CancellationRating
7.9
8,365 reviews
Search Delta flights
Spirit AirlinesPriceFrom $172Free CancellationRating
6.3
8,573 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $180Free CancellationRating
7.1
11,546 reviews
Search American Airlines flights
United AirlinesPriceFrom $182Free CancellationRating
7.4
9,533 reviews
Search United Airlines flights
SouthwestPriceFrom $259Free CancellationRating
8.0
4,336 reviews
Search Southwest flights
JetBluePriceFrom $304Free CancellationRating
7.2
2,909 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $347Free CancellationRating
7.9
12,149 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.

An easier way to manage your California trip

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