$66 Cheap Flights from St. Louis (STL) to Los Angeles (LAX)

View $66 flight on Thu, Sep 25, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Los Angeles Intl. (LAX)

Cheap Flights from St. Louis to Los Angeles (STL-LAX)

Prices were available within the past 7 days and start at $66 for one-way flights and $157 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Thu, Aug 14 - Thu, Aug 21
STL
St. Louis
LAX
Los Angeles
$157 Roundtrip, just found
$157
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, Aug 14 from St. Louis to Los Angeles, returning Thu, Aug 21, priced at $157 just found
Spirit Airlines
Mon, Aug 18 - Sun, Aug 24
STL
St. Louis
LAX
Los Angeles
$163 Roundtrip, found 2 hours ago
$163
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Mon, Aug 18 from St. Louis to Los Angeles, returning Sun, Aug 24, priced at $163 found 2 hours ago
Spirit Airlines
Thu, Aug 14 - Sat, Aug 16
STL
St. Louis
LAX
Los Angeles
$167 Roundtrip, found 11 hours ago
$167
Roundtrip
found 11 hours ago
Select Spirit Airlines flight, departing Thu, Aug 14 from St. Louis to Los Angeles, returning Sat, Aug 16, priced at $167 found 11 hours ago
Spirit Airlines
Fri, Aug 22 - Sun, Aug 24
STL
St. Louis
LAX
Los Angeles
$169 Roundtrip, found 11 hours ago
$169
Roundtrip
found 11 hours ago
Select Spirit Airlines flight, departing Fri, Aug 22 from St. Louis to Los Angeles, returning Sun, Aug 24, priced at $169 found 11 hours ago
Spirit Airlines
Fri, Aug 15 - Sat, Aug 16
STL
St. Louis
LAX
Los Angeles
$173 Roundtrip, just found
$173
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, Aug 15 from St. Louis to Los Angeles, returning Sat, Aug 16, priced at $173 just found
Frontier Airlines
Wed, Aug 20 - Sat, Aug 23
STL
St. Louis
LAX
Los Angeles
$182 Roundtrip, found 1 hour ago
$182
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Wed, Aug 20 from St. Louis to Los Angeles, returning Sat, Aug 23, priced at $182 found 1 hour ago
Spirit Airlines
Thu, Aug 21 - Wed, Aug 27
STL
St. Louis
LAX
Los Angeles
$183 Roundtrip, found 2 hours ago
$183
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Thu, Aug 21 from St. Louis to Los Angeles, returning Wed, Aug 27, priced at $183 found 2 hours ago
Southwest Airlines
Sat, Aug 30 - Wed, Sep 3
STL
St. Louis
LAX
Los Angeles
$207 Roundtrip, found 6 hours ago
$207
Roundtrip
found 6 hours ago
Select Southwest Airlines flight, departing Sat, Aug 30 from St. Louis to Los Angeles, returning Wed, Sep 3, priced at $207 found 6 hours ago
American Airlines
Wed, Apr 22 - Sat, Apr 25
STL
St. Louis
LAX
Los Angeles
$295 Roundtrip, just found
$295
Roundtrip
just found
Select American Airlines flight, departing Wed, Apr 22 from St. Louis to Los Angeles, returning Sat, Apr 25, priced at $295 just found
United
Sat, Sep 27 - Sat, Oct 4
STL
St. Louis
LAX
Los Angeles
$310 Roundtrip, just found
$310
Roundtrip
just found
Select United flight, departing Sat, Sep 27 from St. Louis to Los Angeles, returning Sat, Oct 4, priced at $310 just found

Find the cheapest month to fly from St. Louis (STL) to Los Angeles (LAX)

February is typically the cheapest month to fly

From $120 - $513 per traveler.

Graph displaying average flight prices per month

Flights from St. Louis (STL) to Los Angeles (LAX)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Los Angeles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United
Roundtrip price
$157
Distance
1588 mi
Average flight time
3 hours 9 mins

St. Louis to Los Angeles Flights

The cheapest times to fly from St. Louis to Los Angeles

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Los Angeles are during the month of August. You can find some of the cheapest flights from St. Louis to Los Angeles with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Los Angeles

Sunday is one of the best days to book for cheap flights from St. Louis to Los Angeles: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Los Angeles

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Los Angeles in 2025. You can also book with separate airlines for your outbound and return journeys, from $66 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Los Angeles flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Los Angeles airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX) cost?
Grab cheap return fares starting from $295 from Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines flight leaving STL on July 26 2025 and touching down at LAX. The price was last updated on June 29 2025 and has not changed since.
What is the cheapest month to fly from STL to LAX?
The cheapest flights from STL to LAX are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX)?
Take a direct flight with Southwest Airlines and fly straight from Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX).
What is the cheapest airline that flies from STL to LAX?
With prices starting from $148 for a one-way flight from STL to LAX, Southwest Airlines is currently the cheapest carrier flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from STL on September 17 2025. Prices were last updated on June 29 2025 and have not changed since.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX)?
On average, there is just 1 direct flight leaving from Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX) per day. If this isn't convenient for you, think about flights with a layover. Just filter your search on Expedia to include one stop or more to find the next best option.
What are the most popular departure times for flights from Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX)?
The 9 AM departures from STL to LAX are the top choice for many travelers. They can also be more expensive. If you want to save money, choose a less crowded time to fly.
What day of the week has the most flights from STL to LAX?
If you travel on a Friday, you'll get the greatest range of options for flights from Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX).
What is the earliest flight from Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX)?
The first flight of the day jetting off from Lambert-St. Louis Intl. Airport (STL) is at around 6:03AM UTC-6. Hop on this flight and you'll land at Los Angeles Intl. Airport (LAX) at approximately 8:21AM UTC-8. The total time in the air is 4h 18m.
How long does it take to fly from Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX)?
It takes approximately 4 hours and 19 minutes to cover the 1,600 mi from STL to LAX.
What airline has the least delays from STL to LAX?
Sun Country Airlines has the best track record for on-time direct flights from Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX), with an on-time score of 100%. Use the Expedia App to look up your flight schedule before you take off and get real-time updates about any changes.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX)?
To avoid possible delays on the Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX) route, aim to travel before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Los Angeles from Lambert-St. Louis Intl. Airport (STL)?
Lambert-St. Louis Intl. Airport (STL) has direct flights to Los Angeles. These are a few of the airports you can fly to without stops:

  • Los Angeles Intl. Airport (LAX)
  • Long Beach Municipal Airport (LGB)
  • Bob Hope Airport (BUR)

Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX) last-minute?
Booking your ticket from STL to LAX right before your journey is typically more expensive. But if you're flexible with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a STL to LAX flight and hotel package?
Compared with arranging hotels and flights separately, booking a STL to LAX flight and hotel package with Expedia could result in significant savings. Better still, having it all in one place will take the hassle out of planning your trip. Simply secure your flights and choose from our wide range of stays, then personalize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Los Angeles Intl. Airport (LAX)?
If you booked your STL to LAX flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

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*Available to One Key members.