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Cheap flights from Los Angeles to St. Louis from $136

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 12/24. 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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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
2:48 pm - 9:07 amLAX-STL
16h 19m1 stop
Frontier Logo
9:54 pm - 1:26 pmSTL-LAX
17h 32m1 stop
$166Frontier
Find Deal
Tue, Nov 18 - Thu, Nov 20
Frontier Logo
9:22 pm - 9:07 amLAX-STL
9h 45m1 stop
Frontier Logo
12:09 pm - 3:45 pmSTL-LAX
5h 36m1 stop
$168Frontier
Find Deal
Fri, Oct 31 - Mon, Nov 3
Frontier Logo
9:22 pm - 9:07 amLAX-STL
9h 45m1 stop
Frontier Logo
7:45 pm - 12:25 amSTL-LAX
6h 40m1 stop
$170Frontier
Find Deal
Mon, Nov 3 - Mon, Nov 10
Frontier Logo
10:39 pm - 11:07 amLAX-STL
10h 28m1 stop
Frontier Logo
7:43 pm - 7:42 amSTL-LAX
13h 59m1 stop
$171Frontier
Find Deal
Wed, Dec 3 - Wed, Dec 10
Frontier Logo
2:48 pm - 9:07 amLAX-STL
16h 19m1 stop
Frontier Logo
12:09 pm - 3:45 pmSTL-LAX
5h 36m1 stop
$172Frontier
Find Deal
Sat, Nov 15 - Mon, Nov 17
Frontier Logo
9:22 pm - 9:07 amLAX-STL
9h 45m1 stop
Frontier Logo
12:09 pm - 5:44 pmSTL-LAX
7h 35m1 stop
$173Frontier
Find Deal
Fri, Nov 7 - Mon, Nov 10
Frontier Logo
9:22 pm - 9:07 amLAX-STL
9h 45m1 stop
Frontier Logo
7:45 pm - 1:18 pmSTL-LAX
19h 33m1 stop
$175Frontier
Find Deal
Fri, Nov 14 - Mon, Nov 17
Frontier Logo
2:25 pm - 9:07 amLAX-STL
16h 42m2 stops
Frontier Logo
7:45 pm - 12:25 amSTL-LAX
6h 40m1 stop
$177Frontier
Find Deal
Fri, Nov 14 - Sat, Nov 15
Multiple Airlines Logo
6:10 am - 9:07 amLAX-STL
24h 57m2 stops
Multiple Airlines Logo
12:09 pm - 5:44 pmSTL-LAX
7h 35m1 stop
$180Multiple Airlines
Find Deal
Mon, Nov 3 - Mon, Nov 10
Multiple Airlines Logo
9:04 am - 9:07 amLAX-STL
22h 03m2 stops
Multiple Airlines Logo
7:45 pm - 12:25 amSTL-LAX
6h 40m1 stop
$181Multiple Airlines
Find Deal
Thu, Nov 13 - Sat, Nov 15

Delta flights from Los Angeles to St. Louis

Our best Delta deals on Los Angeles to St. Louis flight tickets
Delta
Oct 25
LAX11:55 pmLos Angeles
6h 56m
1 stop
STL8:51 amLambert-St Louis
Oct 26
STL5:31 pmLambert-St Louis
7h 50m
1 stop
LAX11:21 pmLos Angeles
$387
Find similar
Delta
Oct 25
LAX9:59 amLos Angeles
9h 24m
2 stops
STL9:23 pmLambert-St Louis
Oct 26
STL6:00 amLambert-St Louis
8h 07m
1 stop
LAX12:07 pmLos Angeles
$717
Find similar
Delta
Oct 25
LAX6:15 amLos Angeles
7h 16m
1 stop
STL3:31 pmLambert-St Louis
Oct 27
STL8:53 amLambert-St Louis
9h 57m
2 stops
LAX4:50 pmLos Angeles
$790
Find similar

Frontier flights from Los Angeles to St. Louis

Our best Frontier deals on Los Angeles to St. Louis flight tickets
Frontier
Nov 18
LAX2:48 pmLos Angeles
16h 19m
1 stop
STL9:07 amLambert-St Louis
Nov 20
STL9:54 pmLambert-St Louis
17h 32m
1 stop
LAX1:26 pmLos Angeles
$166
Find similar
Frontier
Oct 31
LAX9:22 pmLos Angeles
9h 45m
1 stop
STL9:07 amLambert-St Louis
Nov 3
STL12:09 pmLambert-St Louis
5h 36m
1 stop
LAX3:45 pmLos Angeles
$168
Find similar
Frontier
Nov 3
LAX9:22 pmLos Angeles
9h 45m
1 stop
STL9:07 amLambert-St Louis
Nov 10
STL7:45 pmLambert-St Louis
6h 40m
1 stop
LAX12:25 amLos Angeles
$170
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 October 20, 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

Tue 11/18

2:48 pm-9:07 am

1 stop16h 19m

Lambert-St Louis

Thu 11/20

9:54 pm-1:26 pm

1 stop17h 32m

$166

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Fri 10/31

9:22 pm-9:07 am

1 stop9h 45m

Lambert-St Louis

Mon 11/3

12:09 pm-3:45 pm

1 stop5h 36m

$168

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Mon 11/3

9:22 pm-9:07 am

1 stop9h 45m

Lambert-St Louis

Mon 11/10

7:45 pm-12:25 am

1 stop6h 40m

$170

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Wed 12/3

10:39 pm-11:07 am

1 stop10h 28m

Lambert-St Louis

Wed 12/10

7:43 pm-7:42 am

1 stop13h 59m

$171

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Sat 11/15

2:48 pm-9:07 am

1 stop16h 19m

Lambert-St Louis

Mon 11/17

12:09 pm-3:45 pm

1 stop5h 36m

$172

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Fri 11/7

9:22 pm-9:07 am

1 stop9h 45m

Lambert-St Louis

Mon 11/10

12:09 pm-5:44 pm

1 stop7h 35m

$173

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Fri 11/14

9:22 pm-9:07 am

1 stop9h 45m

Lambert-St Louis

Mon 11/17

7:45 pm-1:18 pm

1 stop19h 33m

$175

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Fri 11/14

2:25 pm-9:07 am

2 stops16h 42m

Lambert-St Louis

Sat 11/15

7:45 pm-12:25 am

1 stop6h 40m

$177

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Mon 11/3

6:10 am-9:07 am

2 stops24h 57m

Lambert-St Louis

Mon 11/10

12:09 pm-5:44 pm

1 stop7h 35m

$180

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Thu 11/13

9:04 am-9:07 am

2 stops22h 03m

Lambert-St Louis

Sat 11/15

7:45 pm-12:25 am

1 stop6h 40m

$181

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, April 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 $359. The month of October is another great option to travel to St. Louis, with average flight prices from Los Angeles averaging around $365.

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 $394. 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 Saturday because tickets tend to average around $441. 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 $381 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 $427 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 $401 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 $316 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?

You could potentially save up to 15% on your flight if you consider stops on a Los Angeles to St. Louis flight.

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

As of October 2025, prices for Los Angeles to St. Louis flights are approximately 12% more expensive 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

$192

Fastest flight time

3h 25m

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 $192. The best round-trip flight deal from Los Angeles to St. Louis found on momondo in the last 72 hours is $331.
The fastest flight from Los Angeles to St. Louis takes 3h 25m
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 9h 45m 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 $123Free CancellationRating
5.8
3,130 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $257Free CancellationRating
8.0
11,134 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $283Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
DeltaPriceFrom $296Free CancellationRating
7.9
7,976 reviews
Search Delta flights
American AirlinesPriceFrom $302Free CancellationRating
7.2
11,026 reviews
Search American Airlines flights
United AirlinesPriceFrom $329Free CancellationRating
7.4
8,991 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 4 flights on this route every week with an average price of $516. Alaska Airlines is rated 8.0/10 by our users.

  • Southwest Flights From Los Angeles to St. Louis

    Across 4,241 Southwest reviews on momondo, the average score is 8.0/10. Southwest flies from Los Angeles to St. Louis about 16 times each week, with ticket deals ranging from $283 to $403. 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
Florissant
Maryland Heights
O'Fallon
Wentzville
Collinsville
Fenton
St. Peters
Alton
Farmington
Festus
Glencoe
Clayton
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.
Start using Trips
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