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Cheap flights from Los Angeles to St. Louis from $57

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Los Angeles to St. Louis departing on 1/13. 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 Los Angeles to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
9:15 am - 8:07 pm
LAX
-
STL
8h 52m1 stop
Frontier Logo
10:10 pm - 8:31 pm
STL
-
LAX
24h 21m1 stop
$205Frontier
Mon, Dec 29 - Sun, Jan 4
Frontier Logo
8:58 pm - 10:02 am
LAX
-
STL
11h 04m1 stop
Frontier Logo
8:42 pm - 7:38 am
STL
-
LAX
12h 56m1 stop
$208Frontier
Sun, Dec 21 - Fri, Jan 2
Frontier Logo
1:13 pm - 9:25 pm
LAX
-
STL
6h 12m1 stop
Frontier Logo
10:10 pm - 12:16 pm
STL
-
LAX
16h 06m1 stop
$209Frontier
Sat, Dec 20 - Sun, Dec 21
Frontier Logo
8:57 pm - 8:50 pm
LAX
-
STL
21h 53m2 stops
Frontier Logo
7:43 pm - 8:50 am
STL
-
LAX
15h 07m1 stop
$210Frontier
Sun, Feb 8 - Wed, Feb 11
Multiple Airlines Logo
3:25 pm - 10:02 am
LAX
-
STL
16h 37m2 stops
Multiple Airlines Logo
9:46 pm - 8:22 am
STL
-
LAX
12h 36m1 stop
$211Multiple Airlines
Fri, Jan 9 - Sun, Jan 11
Multiple Airlines Logo
4:07 pm - 2:46 pm
LAX
-
STL
20h 39m2 stops
Multiple Airlines Logo
10:01 pm - 9:27 am
STL
-
LAX
13h 26m1 stop
$212Multiple Airlines
Tue, Feb 3 - Thu, Feb 5
Frontier Logo
8:58 pm - 10:02 am
LAX
-
STL
11h 04m1 stop
Frontier Logo
7:43 pm - 12:30 am
STL
-
LAX
6h 47m1 stop
$213Frontier
Tue, Dec 30 - Mon, Jan 5
Frontier Logo
1:15 pm - 9:21 pm
LAX
-
STL
6h 06m1 stop
Frontier Logo
3:46 pm - 11:31 pm
STL
-
LAX
9h 45m1 stop
$217Frontier
Fri, Jan 9 - Sat, Jan 24
Frontier Logo
9:08 pm - 10:02 am
LAX
-
STL
10h 54m1 stop
Frontier Logo
10:44 pm - 8:05 pm
STL
-
LAX
23h 21m1 stop
$218Frontier
Thu, Apr 9 - Sun, Apr 12
Multiple Airlines Logo
5:59 pm - 4:24 pm
LAX
-
STL
20h 25m1 stop
Multiple Airlines Logo
8:42 pm - 7:38 am
STL
-
LAX
12h 56m1 stop
$219Multiple Airlines
Wed, Dec 24 - Fri, Jan 2

Frontier flights from Los Angeles to St. Louis

Our best Frontier deals on Los Angeles to St. Louis flight tickets
Frontier
Dec 29
LAX9:15 amLos Angeles
8h 52m
1 stop
STL8:07 pmLambert-St Louis
Jan 4
STL10:10 pmLambert-St Louis
24h 21m
1 stop
LAX8:31 pmLos Angeles
$205
Find similar
Frontier
Dec 16
LAX7:00 amLos Angeles
25h 14m
1 stop
STL10:14 amLambert-St Louis
Dec 21
STL10:10 pmLambert-St Louis
24h 21m
1 stop
LAX8:31 pmLos Angeles
$207
Find similar
Frontier
Dec 21
LAX8:58 pmLos Angeles
11h 04m
1 stop
STL10:02 amLambert-St Louis
Jan 2
STL8:42 pmLambert-St Louis
12h 56m
1 stop
LAX7:38 amLos Angeles
$208
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Los Angeles 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 December 10, 2025.
Use the filters below to find and compare flights from Los Angeles to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Mon 12/29

9:15 am-8:07 pm

1 stop8h 52m

Lambert-St Louis

Sun 1/4

10:10 pm-8:31 pm

1 stop24h 21m

$205

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Sun 12/21

8:58 pm-10:02 am

1 stop11h 04m

Lambert-St Louis

Fri 1/2

8:42 pm-7:38 am

1 stop12h 56m

$208

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Sat 12/20

1:13 pm-9:25 pm

1 stop6h 12m

Lambert-St Louis

Sun 12/21

10:10 pm-12:16 pm

1 stop16h 06m

$209

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Sun 2/8

8:57 pm-8:50 pm

2 stops21h 53m

Lambert-St Louis

Wed 2/11

7:43 pm-8:50 am

1 stop15h 07m

$210

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Fri 1/9

3:25 pm-10:02 am

2 stops16h 37m

Lambert-St Louis

Sun 1/11

9:46 pm-8:22 am

1 stop12h 36m

$211

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Tue 2/3

4:07 pm-2:46 pm

2 stops20h 39m

Lambert-St Louis

Thu 2/5

10:01 pm-9:27 am

1 stop13h 26m

$212

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Tue 12/30

8:58 pm-10:02 am

1 stop11h 04m

Lambert-St Louis

Mon 1/5

7:43 pm-12:30 am

1 stop6h 47m

$213

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Fri 1/9

1:15 pm-9:21 pm

1 stop6h 06m

Lambert-St Louis

Sat 1/24

3:46 pm-11:31 pm

1 stop9h 45m

$217

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Thu 4/9

9:08 pm-10:02 am

1 stop10h 54m

Lambert-St Louis

Sun 4/12

10:44 pm-8:05 pm

1 stop23h 21m

$218

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Wed 12/24

5:59 pm-4:24 pm

1 stop20h 25m

Lambert-St Louis

Fri 1/2

8:42 pm-7:38 am

1 stop12h 56m

$219

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 Los Angeles 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 Los Angeles 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 Los Angeles 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 $388. 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 $427. 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 Los Angeles in the evening is the least expensive time of day to depart. momondo users have found prices as low as $360 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 $418 per ticket.

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

Fly from Los Angeles to Lambert-St Louis for the best Los Angeles - 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 Los Angeles when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $391 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Los Angeles for as low as $303 on momondo.

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

There are 4 cabin classes available to choose from on Los Angeles 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 Los Angeles to St. Louis flights?

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

How have Los Angeles to St. Louis flight prices changed over time?

As of December 2025, prices for Los Angeles to St. Louis flights are approximately 5% cheaper when compared to flights at the same time last year.

When to book flights from Los Angeles to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Los Angeles to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Los Angeles to St. Louis (LAX to STL) flight deals and tips

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

Best Price Found

$154

Fastest flight time

3h 26m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Los Angeles in the past 72 hours is $154. The best round-trip flight deal from Los Angeles to St. Louis found on momondo in the last 72 hours is $375.
The fastest flight from Los Angeles to St. Louis takes 3h 26m
Direct flights go from Los Angeles to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
Search flight deals

  • How far is Los Angeles to Lambert-St Louis by plane?

    The straight-line distance from Los Angeles to Lambert-St Louis is 1588.8 mi. Typically, this will take 3h 26m by plane in normal conditions.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Los Angeles Airport to Lambert-St Louis Airport.

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

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport 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 Lambert-St Louis Airport. 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 Los Angeles to St. Louis?

  • What is the most popular airline from Los Angeles to St. Louis?

Best airlines flying from Los Angeles to St. Louis

Compare and see reviews for airlines that fly from Los Angeles to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $129Free CancellationRating
5.8
3,085 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $257Free CancellationRating
8.0
11,426 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $284Free CancellationRating
7.9
4,252 reviews
Search Southwest flights
DeltaPriceFrom $296Free CancellationRating
7.9
8,007 reviews
Search Delta flights
American AirlinesPriceFrom $302Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
United AirlinesPriceFrom $329Free CancellationRating
7.4
9,093 reviews
Search United Airlines flights

  • Alaska Airlines Flights From Los Angeles to St. Louis

    The lowest priced Alaska Airlines flight from Los Angeles to St. Louis from the last 72 hours was $257. Generally, Alaska Airlines has 7 flights on this route every week with an average price of $505. Alaska Airlines is rated 8.0/10 by our users.

  • Southwest Flights From Los Angeles to St. Louis

    Across 4,252 Southwest reviews on momondo, the average score is 7.9/10. Southwest flies from Los Angeles to St. Louis about 12 times each week, with ticket deals ranging from $284 to $398. Price data is based on momondo searches in the last 72 hours.

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
Maryland Heights
O'Fallon
Florissant
Fenton
Wentzville
St. Peters
Collinsville
Alton
Farmington
Festus
Clayton
Glencoe
Edwardsville
Eureka
Litchfield
Shrewsbury

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Los Angeles.

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

momondo does allow users to show only those flights to St. Louis from Los Angeles which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Los Angeles.

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

Of course. momondo tracks the price of Los Angeles to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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.
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