HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$68+ Cheap flights from Louisiana to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — STL
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisiana to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Louisiana to St. Louis

Keep the following information in mind while searching for Louisiana to St. Louis flight deals. Data was last updated September 17, 2025.

Round-trip from

$135
(United Airlines)

One-way from

$68
(United Airlines)

Popular in

January

Cheapest in

May

Average price

$378

Good round-trip deal

$316 or less
From Louisiana to Lambert-St Louis
Search Deals
One-way flight from Louisiana to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Louisiana to Lambert-St Louis.
Search Deals

Find flight deals from Louisiana to St. Louis

Cheapest flights from Louisiana to St. Louis
Explore the most affordable flight options available from Louisiana to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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 11/65:15 amMSY - STL
1 stop5h 24mUnited Airlines
Sat 11/85:24 pmSTL - MSY
1 stop5h 02mUnited Airlines
Deal found 9/15$135
This Booking.com deal was found by Cheapflights users on 9/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:27 pmMSY - STL
1 stop14h 40mFrontier
Wed 10/157:52 pmSTL - MSY
1 stop22h 25mFrontier
Deal found 9/17$165
This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/95:55 pmMSY - STL
1 stop16h 42mFrontier
Sun 10/1211:32 amSTL - MSY
1 stop5h 05mFrontier
Deal found 9/16$186
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:05 pmMSY - STL
1 stop16h 11mMultiple Airlines
Sun 10/2611:32 amSTL - MSY
1 stop7h 27mMultiple Airlines
Deal found 9/17$195
This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:27 pmMSY - STL
1 stop14h 40mFrontier
Sun 10/1911:32 amSTL - MSY
1 stop5h 05mFrontier
Deal found 9/16$196
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:20 amMSY - STL
1 stop5h 06mDelta
Tue 10/1411:21 amSTL - MSY
1 stop6h 48mDelta
Deal found 9/16$197
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:00 amMSY - STL
1 stop11h 27mMultiple Airlines
Sat 11/87:45 pmSTL - MSY
2 stops21h 15mMultiple Airlines
Deal found 9/15$201
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/87:55 pmMSY - STL
1 stop14h 07mSpirit Airlines
Sat 10/117:15 pmSTL - MSY
1 stop12h 52mSpirit Airlines
Deal found 9/16$221
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/87:55 pmMSY - STL
1 stop14h 07mMultiple Airlines
Fri 10/1011:32 amSTL - MSY
1 stop6h 34mMultiple Airlines
Deal found 9/16$226
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:41 amMSY - STL
1 stop27h 21mMultiple Airlines
Wed 10/227:52 pmSTL - MSY
2 stops23h 07mMultiple Airlines
Deal found 9/17$227
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 11/195:20 amSHV - STL
1 stop5h 19mUnited Airlines
Sat 11/224:35 pmSTL - SHV
1 stop5h 37mUnited Airlines
Deal found 9/17$229
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:43 amSHV - STL
1 stop5h 22mDelta
Sun 10/57:10 amSTL - SHV
1 stop4h 38mDelta
Deal found 9/16$239

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisiana 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 September 17, 2025.
Use the filters below to find and compare flights from Louisiana to St. Louis that are best for you.

Fly from

Louisiana

Fly to

St. Louis

Route

Depart

Return

Price

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 11/6

5:15 am-10:39 am

1 stop5h 24m

Lambert-St Louis

Sat 11/8

5:24 pm-10:26 pm

1 stop5h 02m

$135

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Tue 10/7

5:20 am-10:26 am

1 stop5h 06m

Lambert-St Louis

Tue 10/14

11:21 am-6:09 pm

1 stop6h 48m

$197

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 11/6

6:00 am-5:27 pm

1 stop11h 27m

Lambert-St Louis

Sat 11/8

7:45 pm-5:00 pm

2 stops21h 15m

$201

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 2/19

5:05 am-9:23 am

1 stop4h 18m

Lambert-St Louis

Sun 2/22

6:00 am-10:59 am

1 stop4h 59m

$205

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 2/19

9:31 am-3:38 pm

1 stop6h 07m

Lambert-St Louis

Mon 2/23

4:39 pm-9:18 pm

1 stop4h 39m

$224

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 10/8

7:55 pm-10:02 am

1 stop14h 07m

Lambert-St Louis

Fri 10/10

11:32 am-6:06 pm

1 stop6h 34m

$226

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 10/15

6:41 am-10:02 am

1 stop27h 21m

Lambert-St Louis

Wed 10/22

7:52 pm-6:59 pm

2 stops23h 07m

$227

ShreveportSt. Louis

SHV - STL

SHVSTL

Shreveport

Wed 11/19

5:20 am-10:39 am

1 stop5h 19m

Lambert-St Louis

Sat 11/22

4:35 pm-10:12 pm

1 stop5h 37m

$229

ShreveportSt. Louis

SHV - STL

SHVSTL

Shreveport

Thu 10/2

10:43 am-4:05 pm

1 stop5h 22m

Lambert-St Louis

Mon 10/6

3:59 pm-8:18 pm

1 stop4h 19m

$239

ShreveportSt. Louis

SHV - STL

SHVSTL

Shreveport

Wed 10/1

10:43 am-4:05 pm

1 stop5h 22m

Lambert-St Louis

Sun 10/5

7:10 am-11:48 am

1 stop4h 38m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 54 results
1
2
3
...
6

Best time to book a flight from Louisiana to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Louisiana 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 Louisiana to St. Louis

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

Currently, August is the cheapest month in which you can book a flight from Louisiana to St. Louis (average of $311). Flying from Louisiana 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.

What is the cheapest time of day to fly from LA to STL?

Find hourly flight availability from Louisiana to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Louisiana to St. Louis as you normally would.

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

Related info for your journey

Find useful and relevant information for your journey from Louisiana 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 airport do you fly into for flights to St. Louis from Louisiana?

    If you book a flight to St. Louis from Louisiana, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • How popular is this Louisiana to St. Louis flight route?

    This flight path from Louisiana to Lambert-St Louis was viewed by 10 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Louisiana to St. Louis?

    United Airlines, Delta, and American Airlines can get you from Louisiana to St. Louis in just under 4h 27m. Your travel time can differ by up to 57m. The distance from Louisiana to St. Louis is about 597 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Louisiana to St. Louis?

    The most popular route from Louisiana to St. Louis is New Orleans Louis Armstrong - Lambert-St Louis. You may also consider Baton Rouge Ryan - Lambert-St Louis or Shreveport - Lambert-St Louis.

  • What are the cheapest flights from Louisiana to St. Louis?

    Looking at all options, your cheapest flight can be booked for $196. While the most popular route (New Orleans Louis Armstrong - Lambert-St Louis) can be booked for $135 on average, our data indicates $468 when flying from Louisiana to St. Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisiana 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 Louisiana to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Louisiana to St. Louis (average of $311). Flying from Louisiana 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 St. Louis?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Louisiana to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Kansas City flights
Newark to Kansas City flights
LaGuardia to Kansas City flights
LaGuardia to St. Louis flights
Newark to St. Louis flights
O'Hare Intl to Kansas City flights
John F Kennedy Intl to St. Louis flights
Dulles Intl to St. Louis flights
Los Angeles to Kansas City flights
Dulles Intl to Kansas City flights
Atlanta to St. Louis flights
Boston to Kansas City flights
Detroit to Kansas City flights
Boston to St. Louis flights
Reagan-National to St. Louis flights
Seattle to St. Louis flights
Dallas/Fort Worth to St. Louis flights
Baltimore to St. Louis flights
Dallas/Fort Worth to Kansas City flights
Denver to Kansas City flights
Baltimore to Kansas City flights
Orlando to St. Louis flights
Los Angeles to St. Louis flights
Reagan-National to Kansas City flights
Atlanta to Kansas City flights
San Francisco to St. Louis flights
Seattle to Kansas City flights
Philadelphia to Kansas City flights
Hobby to St. Louis flights
Denver to St. Louis flights
Sky Harbor Intl to Kansas City flights
Minneapolis to Kansas City flights
O'Hare Intl to St. Louis flights
Minneapolis to St. Louis flights
Philadelphia to St. Louis flights
Hobby to Kansas City flights
San Francisco to Kansas City flights
Ontario to Kansas City flights
Detroit to St. Louis flights
Midway to Kansas City flights
George Bush Intcntl to St. Louis flights
George Bush Intcntl to Kansas City flights
Salt Lake City to Kansas City flights
Sky Harbor Intl to St. Louis flights
Orlando to Kansas City flights
Tampa to Kansas City flights
Miami to St. Louis flights
Raleigh to St. Louis flights
Austin to Kansas City flights
Love Field to St. Louis flights

Top 4 airlines flying from Louisiana to St. Louis

Discover the top 4 airlines that operate flights from Louisiana 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$198Average$275FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$218Average$332FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$223Average$327FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$278Average$406FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.