$135 Cheap Flights from Lake Charles (LCH) to St. Louis (STL)

View $135 flight on Sat, Aug 30, 2025Opens in a new window

Popular airlines from Lake Charles, LA (LCH-Lake Charles Regional) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Lake Charles to St. Louis (LCH-STL)

Prices were available within the past 7 days and start at $135 for one-way flights and $249 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Sep 19 - Sun, Sep 21
LCH
Lake Charles
STL
St. Louis
$249 Roundtrip, found 7 hours ago
$249
Roundtrip
found 7 hours ago
Select United flight, departing Fri, Sep 19 from Lake Charles to St. Louis, returning Sun, Sep 21, priced at $249 found 7 hours ago
United
Thu, Aug 28 - Sun, Aug 31
LCH
Lake Charles
STL
St. Louis
$254 Roundtrip, found 2 days ago
$254
Roundtrip
found 2 days ago
Select United flight, departing Thu, Aug 28 from Lake Charles to St. Louis, returning Sun, Aug 31, priced at $254 found 2 days ago
United
Thu, Oct 2 - Sat, Oct 4
LCH
Lake Charles
STL
St. Louis
$254 Roundtrip, found 3 days ago
$254
Roundtrip
found 3 days ago
Select United flight, departing Thu, Oct 2 from Lake Charles to St. Louis, returning Sat, Oct 4, priced at $254 found 3 days ago
United
Thu, Oct 2 - Sat, Oct 4
LCH
Lake Charles
STL
St. Louis
$255 Roundtrip, found 3 days ago
$255
Roundtrip
found 3 days ago
Select United flight, departing Thu, Oct 2 from Lake Charles to St. Louis, returning Sat, Oct 4, priced at $255 found 3 days ago
United
Fri, Aug 22 - Mon, Aug 25
LCH
Lake Charles
STL
St. Louis
$259 Roundtrip, found 5 days ago
$259
Roundtrip
found 5 days ago
Select United flight, departing Fri, Aug 22 from Lake Charles to St. Louis, returning Mon, Aug 25, priced at $259 found 5 days ago
United
Fri, Sep 19 - Sun, Sep 21
LCH
Lake Charles
STL
St. Louis
$272 Roundtrip, found 7 hours ago
$272
Roundtrip
found 7 hours ago
Select United flight, departing Fri, Sep 19 from Lake Charles to St. Louis, returning Sun, Sep 21, priced at $272 found 7 hours ago
American Airlines
Thu, Oct 16 - Mon, Oct 20
LCH
Lake Charles
STL
St. Louis
$279 Roundtrip, found 18 hours ago
$279
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Thu, Oct 16 from Lake Charles to St. Louis, returning Mon, Oct 20, priced at $279 found 18 hours ago
United
Fri, May 1 - Sat, May 2
LCH
Lake Charles
STL
St. Louis
$281 Roundtrip, found 3 days ago
$281
Roundtrip
found 3 days ago
Select United flight, departing Fri, May 1 from Lake Charles to St. Louis, returning Sat, May 2, priced at $281 found 3 days ago
American Airlines
Thu, Oct 16 - Mon, Oct 20
LCH
Lake Charles
STL
St. Louis
$294 Roundtrip, found 18 hours ago
$294
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Thu, Oct 16 from Lake Charles to St. Louis, returning Mon, Oct 20, priced at $294 found 18 hours ago
American Airlines
Fri, May 1 - Sat, May 2
LCH
Lake Charles
STL
St. Louis
$309 Roundtrip, found 3 days ago
$309
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, May 1 from Lake Charles to St. Louis, returning Sat, May 2, priced at $309 found 3 days ago

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $443
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $443
Flights from Lake Charles (LCH) to St. Louis (STL)
Origin airport
Lake Charles Regional
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, United
Roundtrip price
$248
Distance
617 mi

Lake Charles to St. Louis Flights

The cheapest times to fly from Lake Charles to St. Louis

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 Lake Charles to St. Louis are during the month of September. You can find some of the cheapest flights from Lake Charles to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Lake Charles to St. Louis

Sunday is one of the best days to book for cheap flights from Lake Charles to St. Louis: 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 Lake Charles to St. Louis

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 Lake Charles to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $135 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 Lake Charles to St. Louis 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 Lake Charles to St. Louis 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 Lake Charles Regional Airport (LCH) to Lambert-St. Louis Intl. Airport (STL) cost?
Get a cheap one-way flight from $135 or cheap return flight from $249 from Lake Charles Regional Airport (LCH) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Lake Charles Regional Airport (LCH) to Lambert-St. Louis Intl. Airport (STL)?
The cheapest month to fly from LCH to STL is September, when there's less demand. Off-peak months are often when better flight deals are available between these airports.
What is the cheapest airline that flies from Lake Charles Regional Airport (LCH) to Lambert-St. Louis Intl. Airport (STL)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest LCH to STL flight.
How many flights per day from Lake Charles Regional Airport (LCH) to Lambert-St. Louis Intl. Airport (STL)?
You'll have to hop on a flight with a layover when traveling from Lake Charles Regional Airport (LCH) to Lambert-St. Louis Intl. Airport (STL). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from LCH to STL?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lake Charles Regional Airport (LCH) to Lambert-St. Louis Intl. Airport (STL)?
To arrive at Lambert-St. Louis Intl. Airport (STL) on schedule, choose a flight that leaves from Lake Charles Regional Airport (LCH) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Lake Charles Regional Airport (LCH) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Holding off until just before your departure to book a flight from LCH to STL often results in higher prices. Although you may find some last-minute discounts, they're not always guaranteed. Keep your travel plans flexible to boost your chances of scoring a bargain.
Is it cheaper to book a LCH to STL flight and hotel package?
Compared with arranging flights and hotels separately, booking a LCH to STL flight and hotel package with Expedia could lead to significant savings. Better yet, managing everything in one place will take the stress out of planning your trip. Just secure your flights and select from our wide range of hotels, then customize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Lake Charles Regional Airport (LCH) to Lambert-St. Louis Intl. Airport (STL)?
Usually, it's possible to cancel or reschedule your LCH to STL flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.