Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Los Angeles to St. Louis from $127

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 9/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Los Angeles to St. Louis (LAX-STL)

Cheap round-trip flights

Frontier Logo
9:03 pm - 9:06 amLAX-STL
10h 03m1 stop
Frontier Logo
7:55 pm - 12:13 pmSTL-LAX
18h 18m2 stops
$240Frontier
Find Deal
Fri, Sep 12 - Sat, Sep 13
Logo
8:55 pm - 9:06 amLAX-STL
10h 11m2 stops
Logo
4:00 pm - 9:45 pmSTL-LAX
7h 45m1 stop
$241
Find Deal
Fri, Sep 19 - Sun, Sep 21
Frontier Logo
2:03 pm - 9:06 amLAX-STL
17h 03m1 stop
Frontier Logo
7:55 pm - 12:13 pmSTL-LAX
18h 18m2 stops
$243Frontier
Find Deal
Thu, Sep 11 - Sat, Sep 13
Logo
12:53 am - 9:22 amLAX-STL
6h 29m1 stop
Logo
7:52 pm - 12:25 amSTL-LAX
6h 33m1 stop
$244
Find Deal
Wed, Oct 15 - Mon, Oct 20
Frontier Logo
2:31 pm - 9:06 amLAX-STL
16h 35m1 stop
Frontier Logo
7:55 pm - 1:53 pmSTL-LAX
19h 58m2 stops
$245Frontier
Find Deal
Sat, Sep 27 - Sat, Oct 4
American Airlines Logo
5:31 pm - 10:59 pmLAX-STL
3h 28mnonstop
American Airlines Logo
6:20 am - 8:23 amSTL-LAX
4h 03mnonstop
$295American Airlines
Find Deal
Sat, Sep 27 - Mon, Sep 29
United Airlines Logo
12:56 am - 9:57 amLAX-STL
7h 01m1 stop
United Airlines Logo
4:50 pm - 9:27 pmSTL-LAX
6h 37m1 stop
$297United Airlines
Find Deal
Tue, Sep 23 - Wed, Oct 1
Southwest Logo
4:30 pm - 10:15 pmLAX-STL
3h 45mnonstop
Southwest Logo
6:40 am - 8:35 amSTL-LAX
3h 55mnonstop
$299Southwest
Find Deal
Tue, Sep 16 - Fri, Sep 19
Southwest Logo
6:25 pm - 12:05 amLAX-STL
3h 40mnonstop
Southwest Logo
8:15 pm - 10:20 pmSTL-LAX
4h 05mnonstop
$301Southwest
Find Deal
Sun, Oct 26 - Wed, Oct 29
Delta Logo
3:15 pm - 11:09 pmLAX-STL
5h 54m1 stop
Delta Logo
6:00 am - 12:48 pmSTL-LAX
8h 48m1 stop
$306Delta
Find Deal
Tue, Sep 23 - Thu, Sep 25

Delta flights from Los Angeles to St. Louis

Our best Delta deals on Los Angeles to St. Louis flight tickets
Delta
Sep 23
LAX3:15 pmLos Angeles
5h 54m
1 stop
STL11:09 pmLambert-St Louis
Sep 25
STL6:00 amLambert-St Louis
8h 48m
1 stop
LAX12:48 pmLos Angeles
$306
Find similar
Delta
Aug 30
LAX5:00 pmLos Angeles
5h 39m
1 stop
STL12:39 amLambert-St Louis
Sep 6
STL8:46 amLambert-St Louis
6h 04m
1 stop
LAX12:50 pmLos Angeles
$315
Find similar
Delta
Aug 29
LAX9:48 amLos Angeles
5h 59m
1 stop
STL5:47 pmLambert-St Louis
Sep 3
STL3:30 pmLambert-St Louis
6h 53m
1 stop
LAX8:23 pmLos Angeles
$362
Find similar

American Airlines flights from Los Angeles to St. Louis

Our best American Airlines deals on Los Angeles to St. Louis flight tickets
American Airlines
Aug 30
LAX5:37 pmLos Angeles
3h 32m
STL11:09 pmLambert-St Louis
Aug 31
STL6:45 amLambert-St Louis
3h 49m
LAX8:34 amLos Angeles
$295
Find similar
American Airlines
Aug 30
LAX5:37 pmLos Angeles
3h 32m
STL11:09 pmLambert-St Louis
Sep 2
STL6:45 amLambert-St Louis
3h 49m
LAX8:34 amLos Angeles
$320
Find similar
American Airlines
Sep 10
LAX10:45 pmLos Angeles
7h 20m
1 stop
STL8:05 amLambert-St Louis
Oct 7
STL6:39 amLambert-St Louis
3h 48m
LAX8:27 amLos Angeles
$321
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 August 28, 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

Fri 9/12

9:03 pm-9:06 am

1 stop10h 03m

Lambert-St Louis

Sat 9/13

7:55 pm-12:13 pm

2 stops18h 18m

$240

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Fri 9/19

8:55 pm-9:06 am

2 stops10h 11m

Lambert-St Louis

Sun 9/21

4:00 pm-9:45 pm

1 stop7h 45m

$241

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Thu 9/11

2:03 pm-9:06 am

1 stop17h 03m

Lambert-St Louis

Sat 9/13

7:55 pm-12:13 pm

2 stops18h 18m

$243

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Wed 10/15

12:53 am-9:22 am

1 stop6h 29m

Lambert-St Louis

Mon 10/20

7:52 pm-12:25 am

1 stop6h 33m

$244

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Sat 9/27

2:31 pm-9:06 am

1 stop16h 35m

Lambert-St Louis

Sat 10/4

7:55 pm-1:53 pm

2 stops19h 58m

$245

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Sat 9/27

5:31 pm-10:59 pm

Nonstop3h 28m

Lambert-St Louis

Mon 9/29

6:20 am-8:23 am

Nonstop4h 03m

$295

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Tue 9/23

12:56 am-9:57 am

1 stop7h 01m

Lambert-St Louis

Wed 10/1

4:50 pm-9:27 pm

1 stop6h 37m

$297

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Tue 9/16

4:30 pm-10:15 pm

Nonstop3h 45m

Lambert-St Louis

Fri 9/19

6:40 am-8:35 am

Nonstop3h 55m

$299

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Sun 10/26

6:25 pm-12:05 am

Nonstop3h 40m

Lambert-St Louis

Wed 10/29

8:15 pm-10:20 pm

Nonstop4h 05m

$301

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Tue 9/23

3:15 pm-11:09 pm

1 stop5h 54m

Lambert-St Louis

Thu 9/25

6:00 am-12:48 pm

1 stop8h 48m

$306

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 typical price of a round-trip flight between Los Angeles and St. Louis?

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 $350. The month of September is another great option to travel to St. Louis, with average flight prices from Los Angeles averaging around $356.

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 Tuesday when prices can be found for as low as $391. 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 $458. 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 $396 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 $429 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 $400 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 3 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 13% 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 August 2025, prices for Los Angeles to St. Louis flights are approximately 10% 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

$176

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 $176. The best round-trip flight deal from Los Angeles to St. Louis found on momondo in the last 72 hours is $306.
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 3h 28m 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 $119Free CancellationRating
5.8
3,204 reviews
Search Frontier flights
SouthwestPriceFrom $283Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
DeltaPriceFrom $296Free CancellationRating
7.9
7,977 reviews
Search Delta flights
American AirlinesPriceFrom $297Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $315Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $329Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights

  • Southwest Flights From Los Angeles to St. Louis

    The lowest priced Southwest flight from Los Angeles to St. Louis from the last 72 hours was $283. Generally, Southwest has 10 flights on this route every week with an average price of $415. Southwest is rated 8.0/10 by our users.

  • Alaska Airlines Flights From Los Angeles to St. Louis

    Across 10,000 Alaska Airlines reviews on momondo, the average score is 8.0/10. Alaska Airlines flies from Los Angeles to St. Louis about 6 times each week, with ticket deals ranging from $315 to $645. 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
Florissant
O'Fallon
Fenton
Collinsville
Wentzville
Alton
St. Peters
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
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 9/2
Tue 9/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States