Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Los Angeles to St. Louis from $74

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 10/17. 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

Cheap round-trip flights

Frontier Logo
3:32 pm - 9:07 amLAX-STL
15h 35m2 stops
Frontier Logo
7:52 pm - 12:25 amSTL-LAX
6h 33m1 stop
$216Frontier
Find Deal
Mon, Oct 6 - Wed, Oct 8
Frontier Logo
9:33 am - 3:56 pmLAX-STL
28h 23m1 stop
Frontier Logo
10:17 am - 12:14 pmSTL-LAX
27h 57m2 stops
$217Frontier
Find Deal
Fri, Oct 24 - Sun, Oct 26
Multiple Airlines Logo
3:27 pm - 9:07 amLAX-STL
15h 40m2 stops
Multiple Airlines Logo
9:54 pm - 11:53 amSTL-LAX
15h 59m1 stop
$218Multiple Airlines
Find Deal
Sat, Nov 15 - Thu, Nov 20
Frontier Logo
10:11 pm - 9:04 pmLAX-STL
20h 53m2 stops
Frontier Logo
7:52 pm - 12:25 amSTL-LAX
6h 33m1 stop
$220Frontier
Find Deal
Thu, Oct 9 - Wed, Oct 15
Frontier Logo
8:25 pm - 4:03 pmLAX-STL
17h 38m2 stops
Frontier Logo
1:52 pm - 8:12 amSTL-LAX
20h 20m1 stop
$221Frontier
Find Deal
Fri, Sep 26 - Sun, Sep 28
Multiple Airlines Logo
6:15 am - 9:06 amLAX-STL
24h 51m2 stops
Multiple Airlines Logo
1:52 pm - 8:12 amSTL-LAX
20h 20m1 stop
$223Multiple Airlines
Find Deal
Sat, Sep 27 - Sun, Sep 28
Southwest Logo
5:25 pm - 11:05 pmLAX-STL
3h 40mnonstop
Southwest Logo
9:25 pm - 11:25 pmSTL-LAX
4h 00mnonstop
$295Southwest
Find Deal
Thu, Oct 16 - Mon, Oct 20
American Airlines Logo
5:47 pm - 11:14 pmLAX-STL
3h 27mnonstop
American Airlines Logo
6:39 am - 8:27 amSTL-LAX
3h 48mnonstop
$296American Airlines
Find Deal
Thu, Oct 9 - Wed, Oct 15
American Airlines Logo
5:47 pm - 11:14 pmLAX-STL
3h 27mnonstop
American Airlines Logo
6:39 am - 8:27 amSTL-LAX
3h 48mnonstop
$301American Airlines
Find Deal
Thu, Oct 16 - Thu, Oct 23
Southwest Logo
5:25 pm - 11:05 pmLAX-STL
3h 40mnonstop
Southwest Logo
9:25 pm - 11:25 pmSTL-LAX
4h 00mnonstop
$304Southwest
Find Deal
Fri, Oct 10 - Mon, Oct 13

Southwest flights from Los Angeles to St. Louis

Our best Southwest deals on Los Angeles to St. Louis flight tickets
Southwest
Oct 16
LAX5:25 pmLos Angeles
3h 40m
STL11:05 pmLambert-St Louis
Oct 20
STL9:25 pmLambert-St Louis
4h 00m
LAX11:25 pmLos Angeles
$295
Find similar
Southwest
Oct 10
LAX5:25 pmLos Angeles
3h 40m
STL11:05 pmLambert-St Louis
Oct 13
STL9:25 pmLambert-St Louis
4h 00m
LAX11:25 pmLos Angeles
$304
Find similar
Southwest
Oct 13
LAX1:00 pmLos Angeles
6h 15m
1 stop
STL9:15 pmLambert-St Louis
Oct 15
STL7:35 amLambert-St Louis
4h 05m
LAX9:40 amLos Angeles
$305
Find similar

Frontier flights from Los Angeles to St. Louis

Our best Frontier deals on Los Angeles to St. Louis flight tickets
Frontier
Oct 6
LAX3:32 pmLos Angeles
15h 35m
2 stops
STL9:07 amLambert-St Louis
Oct 8
STL7:52 pmLambert-St Louis
6h 33m
1 stop
LAX12:25 amLos Angeles
$216
Find similar
Frontier
Oct 24
LAX9:33 amLos Angeles
28h 23m
1 stop
STL3:56 pmLambert-St Louis
Oct 26
STL10:17 amLambert-St Louis
27h 57m
2 stops
LAX12:14 pmLos Angeles
$217
Find similar
Frontier
Oct 9
LAX10:11 pmLos Angeles
20h 53m
2 stops
STL9:04 pmLambert-St Louis
Oct 15
STL7:52 pmLambert-St Louis
6h 33m
1 stop
LAX12:25 amLos Angeles
$220
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 September 16, 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 10/6

3:32 pm-9:07 am

2 stops15h 35m

Lambert-St Louis

Wed 10/8

7:52 pm-12:25 am

1 stop6h 33m

$216

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Fri 10/24

9:33 am-3:56 pm

1 stop28h 23m

Lambert-St Louis

Sun 10/26

10:17 am-12:14 pm

2 stops27h 57m

$217

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Sat 11/15

3:27 pm-9:07 am

2 stops15h 40m

Lambert-St Louis

Thu 11/20

9:54 pm-11:53 am

1 stop15h 59m

$218

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Thu 10/9

10:11 pm-9:04 pm

2 stops20h 53m

Lambert-St Louis

Wed 10/15

7:52 pm-12:25 am

1 stop6h 33m

$220

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Fri 9/26

8:25 pm-4:03 pm

2 stops17h 38m

Lambert-St Louis

Sun 9/28

1:52 pm-8:12 am

1 stop20h 20m

$221

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Sat 9/27

6:15 am-9:06 am

2 stops24h 51m

Lambert-St Louis

Sun 9/28

1:52 pm-8:12 am

1 stop20h 20m

$223

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Thu 10/16

5:25 pm-11:05 pm

Nonstop3h 40m

Lambert-St Louis

Mon 10/20

9:25 pm-11:25 pm

Nonstop4h 00m

$295

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Thu 10/9

5:47 pm-11:14 pm

Nonstop3h 27m

Lambert-St Louis

Wed 10/15

6:39 am-8:27 am

Nonstop3h 48m

$296

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Thu 10/16

5:47 pm-11:14 pm

Nonstop3h 27m

Lambert-St Louis

Thu 10/23

6:39 am-8:27 am

Nonstop3h 48m

$301

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Fri 10/10

5:25 pm-11:05 pm

Nonstop3h 40m

Lambert-St Louis

Mon 10/13

9:25 pm-11:25 pm

Nonstop4h 00m

$304

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 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 $355. 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 $398. 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 $451. 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 $391 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 $430 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 $403 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?

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 September 2025, prices for Los Angeles to St. Louis flights are approximately 51% 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

$187

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 $187. The best round-trip flight deal from Los Angeles to St. Louis found on momondo in the last 72 hours is $321.
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 27m 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 $124Free CancellationRating
5.8
3,174 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $257Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $284Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
DeltaPriceFrom $292Free CancellationRating
7.9
7,957 reviews
Search Delta flights
American AirlinesPriceFrom $301Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $329Free CancellationRating
7.4
8,924 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 5 flights on this route every week with an average price of $575. Alaska Airlines is rated 8.0/10 by our users.

  • Southwest Flights From Los Angeles to St. Louis

    Across 4,242 Southwest reviews on momondo, the average score is 8.0/10. Southwest flies from Los Angeles to St. Louis about 10 times each week, with ticket deals ranging from $284 to $413. 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
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
Thu 10/16
Thu 10/23
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States