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$299+ Cheap flights from Lake Charles to St. Louis (LCH - STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
LCH — STL
Jul 14 — Jul 211
Mon 7/14
Mon 7/21
1 adult, Economy
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Cheap flight deals from Lake Charles to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Lake Charles (LCH) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 9, 2025.

Round-trip from

$299
(American Airlines)

Popular in

January

Cheapest in

August

Average price

$379
From Lake Charles to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 30% potential increase in price ($158 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Lake Charles to St. Louis

Cheapest flights from Lake Charles to St. Louis
Explore the most affordable flight options available from Lake Charles to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2025.

This American Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/236:28 pmLCH - STL
1 stop4h 29mAmerican Airlines
Sun 7/275:30 amSTL - LCH
1 stop6h 03mAmerican Airlines
Deal found 7/8$299
This United Airlines deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/246:08 pmLCH - STL
1 stop4h 07mUnited Airlines
Mon 7/288:25 amSTL - LCH
1 stop4h 51mUnited Airlines
Deal found 7/9$315

Cheapflights Fare Finder

Customize your flight search to find flights from Lake Charles 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, Cheapflights users made 2,558,603 searches. Data last updated July 9, 2025.
Use the filters below to find and compare flights from Lake Charles to St. Louis that are best for you.

Fly from

Lake Charles

Fly to

St. Louis

Route

Depart

Return

Price

Lake CharlesSt. Louis

LCH - STL

LCHSTL

Lake Charles

Wed 7/23

6:28 pm-10:57 pm

1 stop4h 29m

Lambert-St Louis

Sun 7/27

5:30 am-11:33 am

1 stop6h 03m

$299

Lake CharlesSt. Louis

LCH - STL

LCHSTL

Lake Charles

Thu 7/24

6:08 pm-10:15 pm

1 stop4h 07m

Lambert-St Louis

Mon 7/28

8:25 am-1:16 pm

1 stop4h 51m

$315

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Best time to book a flight from Lake Charles to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Lake Charles with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Lake Charles to St. Louis

What is the cheapest month to book a flight from Lake Charles to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Lake Charles to St. Louis (average of $311). Flying from Lake Charles to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Lake Charles to St. Louis?

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated July 9, 2025.
Read reviews from past customers who have flown United Airlines and American Airlines from Lake Charles to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,843 reviews

Entertainment

7.0

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,843 reviews
United Airlines
7.4
Good
8,843 reviews

Entertainment

7.0

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,843 reviews

Entertainment

7.0

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Lake Charles to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Lake Charles to St. Louis round-trip?

    Flying on American Airlines is currently your cheapest option to St. Louis, with prices starting at $299. Another option worth looking into is United Airlines, starting at $315 round trip. You may be able to fly from Lake Charles to St. Louis for 17% less than the average price by searching for these airlines.

  • Can I find deals for flights from Lake Charles to St. Louis that include hotel bookings?

    Yes. In addition to deals on Lake Charles to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Lake Charles to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lake Charles to St. Louis.

  • Can I find deals for business class flights from Lake Charles to St. Louis?

    Yes. Cheapflights offers flight deals from Lake Charles to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Lake Charles to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Lake Charles to St. Louis (average of $311). Flying from Lake Charles to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Lake Charles?

Book flights to Lake Charles if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Festus
Chesterfield
Farmington

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Top airline flying from Lake Charles to St. Louis

Discover the top airline that operate flights from Lake Charles to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$248Average$338FlexibilityNo cancel feeOn-time71%

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