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

Popular airlines from St. Louis, MO (CPS-St. Louis Downtown) to Los Angeles Intl. (LAX)

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Frequently asked questions

How much does a flight from St. Louis Downtown Airport (CPS) to Los Angeles Intl. Airport (LAX) cost?
Snag a cheap one-way flight or cheap return flight from St. Louis Downtown Airport (CPS) to Los Angeles Intl. Airport (LAX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from St. Louis Downtown Airport (CPS) to Los Angeles Intl. Airport (LAX)?
The cheapest month to fly from CPS to LAX is , when demand is low. Off-peak season is generally when airlines offer better prices between these airports.
Which airlines fly direct from St. Louis Downtown Airport (CPS) to Los Angeles Intl. Airport (LAX)?
You can't catch a direct flight to Los Angeles Intl. Airport (LAX) from St. Louis, MO (CPS-St. Louis Downtown). However, you can easily travel to Los Angeles without any layovers by departing from Lambert-St. Louis Intl. Airport (STL).
What is the cheapest airline that flies from St. Louis Downtown Airport (CPS) to Los Angeles Intl. Airport (LAX)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from CPS to LAX. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from St. Louis Downtown Airport (CPS) to Los Angeles Intl. Airport (LAX)?
Direct flights from St. Louis Downtown Airport (CPS) to Los Angeles Intl. Airport (LAX) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CPS to LAX?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from St. Louis Downtown Airport (CPS) to Los Angeles Intl. Airport (LAX)?
To touch down at Los Angeles Intl. Airport (LAX) on schedule, opt for a flight that leaves from St. Louis Downtown Airport (CPS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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.
Is it cheaper to buy a plane ticket from St. Louis Downtown Airport (CPS) to Los Angeles Intl. Airport (LAX) last-minute?
Booking your ticket from CPS to LAX shortly before your journey is usually more expensive. But if there's some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a CPS to LAX flight and hotel package?
You can save money by booking a CPS to LAX flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've chosen your ideal accommodations and flights, consider adding extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from St. Louis Downtown Airport (CPS) to Los Angeles Intl. Airport (LAX)?
In most cases, you can reschedule or cancel your CPS to LAX flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you need further information, visit our Customer Service portal.

Travel information

Travel information

Origin airport
St. Louis Downtown
Destination airport
Los Angeles Intl.
Distance
1599 mi

Book with confidence

Book with confidence

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 . 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 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.

 

St. Louis to Los Angeles Flights

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