HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisiana

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

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 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MSY
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Louisiana 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 St. Louis to Louisiana

Keep the following information in mind while searching for St. Louis to Louisiana flight deals. Data was last updated September 15, 2025.

Round-trip from

$135
(United Airlines)

One-way from

$68
(United Airlines)

Popular in

May

Cheapest in

November

Average price

$371

Good round-trip deal

$291 or less
From Lambert-St Louis to Louisiana
Search Deals
One-way flight from Lambert-St Louis to Louisiana
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 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 Lambert-St Louis to Louisiana.
Search Deals

Find flight deals from St. Louis to Louisiana

Cheapest flights from St. Louis to Louisiana
Explore the most affordable flight options available from St. Louis to Louisiana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 11/155:24 pmSTL - MSY
1 stop5h 02mUnited Airlines
Thu 11/2010:38 amMSY - STL
1 stop5h 08mUnited Airlines
Deal found 9/14$135
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Sat 11/225:24 pmSTL - MSY
1 stop5h 02mUnited Airlines
Thu 11/275:10 amMSY - STL
2 stops7h 18mUnited Airlines
Deal found 9/13$140
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Mon 11/35:17 amSTL - MSY
1 stop4h 20mAmerican Airlines
Thu 11/65:15 amMSY - STL
1 stop5h 24mAmerican Airlines
Deal found 9/13$159
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 11/66:22 pmSTL - MSY
1 stop5h 17mMultiple Airlines
Thu 11/139:55 amMSY - STL
1 stop7h 32mMultiple Airlines
Deal found 9/13$164
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 11/66:22 pmSTL - MSY
1 stop5h 17mMultiple Airlines
Sun 11/96:00 amMSY - STL
1 stop5h 09mMultiple Airlines
Deal found 9/13$170
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Fri 11/74:56 pmSTL - MSY
1 stop14h 39mMultiple Airlines
Sun 11/96:00 amMSY - STL
1 stop5h 09mMultiple Airlines
Deal found 9/13$171
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Fri 11/144:56 pmSTL - MSY
1 stop14h 39mMultiple Airlines
Sun 11/169:55 amMSY - STL
1 stop7h 27mMultiple Airlines
Deal found 9/13$174
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 11/66:22 pmSTL - MSY
1 stop5h 17mMultiple Airlines
Wed 11/124:17 pmMSY - STL
1 stop17h 55mMultiple Airlines
Deal found 9/13$182
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Fri 11/74:56 pmSTL - MSY
1 stop14h 39mMultiple Airlines
Mon 11/107:45 pmMSY - STL
1 stop13h 22mMultiple Airlines
Deal found 9/13$183
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Mon 11/32:42 pmSTL - MSY
1 stop14h 39mMultiple Airlines
Thu 11/139:55 amMSY - STL
1 stop7h 32mMultiple Airlines
Deal found 9/13$186
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/911:23 amSTL - MSY
1 stop5h 37mFrontier
Thu 11/137:54 pmMSY - STL
2 stops20h 07mFrontier
Deal found 9/13$188
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Fri 10/106:15 amSTL - SHV
1 stop4h 59mUnited Airlines
Sun 10/124:10 pmSHV - STL
1 stop5h 50mUnited Airlines
Deal found 9/13$229

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Louisiana 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 15, 2025.
Use the filters below to find and compare flights from St. Louis to Louisiana that are best for you.

Fly from

St. Louis

Fly to

Louisiana

Route

Depart

Return

Price

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Mon 11/24

6:15 am-10:59 am

1 stop4h 44m

New Orleans Louis Armstrong

Fri 11/28

2:14 pm-6:46 pm

1 stop4h 32m

$135

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Mon 11/24

5:12 pm-11:35 pm

1 stop6h 23m

New Orleans Louis Armstrong

Thu 11/27

1:05 pm-6:35 pm

1 stop5h 30m

$197

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sat 11/15

6:00 am-10:51 am

1 stop4h 51m

New Orleans Louis Armstrong

Mon 11/17

7:03 pm-11:40 pm

1 stop4h 37m

$197

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Tue 11/4

3:59 pm-8:17 pm

1 stop4h 18m

New Orleans Louis Armstrong

Thu 11/13

6:22 am-10:49 am

1 stop4h 27m

$197

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sat 11/8

3:59 pm-8:17 pm

1 stop4h 18m

New Orleans Louis Armstrong

Fri 11/14

11:29 am-5:09 pm

1 stop5h 40m

$197

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Mon 11/3

3:59 pm-8:17 pm

1 stop4h 18m

New Orleans Louis Armstrong

Sat 11/15

7:35 am-12:26 pm

1 stop4h 51m

$197

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Thu 11/27

7:05 am-2:15 pm

1 stop7h 10m

New Orleans Louis Armstrong

Fri 11/28

4:41 pm-11:23 pm

1 stop6h 42m

$197

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Mon 11/3

3:59 pm-8:17 pm

1 stop4h 18m

New Orleans Louis Armstrong

Tue 11/11

7:30 am-1:00 pm

1 stop5h 30m

$197

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sun 11/9

7:02 pm-11:35 pm

1 stop4h 33m

New Orleans Louis Armstrong

Tue 11/11

11:29 am-5:09 pm

1 stop5h 40m

$197

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Tue 11/4

6:00 am-10:45 am

1 stop4h 45m

New Orleans Louis Armstrong

Wed 11/12

9:12 am-1:00 pm

1 stop3h 48m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 50 results
1
2
3
...
5

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

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

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

Currently, August is the cheapest month in which you can book a flight from St. Louis to Louisiana (average of $256). Flying from St. Louis to Louisiana in April is currently the most expensive (average of $343). 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 STL to LA?

Find hourly flight availability from St. Louis to Louisiana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from St. Louis to Louisiana, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Reviews of airlines servicing Louisiana

Get insights into the airlines that provide service to Louisiana. 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 Louisiana. Reviews last updated September 15, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from St. Louis to Louisiana to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Louisiana. 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 from for flights from St. Louis to Louisiana?

    If you book a flight to Louisiana from St. Louis, you will be flying from 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 St. Louis to Louisiana flight route?

    Within the past month, 4 users have taken a look at flights from Lambert-St Louis to Louisiana.

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

    Departing from St. Louis to Louisiana will take you 4h 20m. There are 597 mi between St. Louis and Louisiana. 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 St. Louis to Louisiana?

    While some choose either Lambert-St Louis - Baton Rouge Ryan or Lambert-St Louis - Shreveport, Lambert-St Louis - New Orleans Louis Armstrong is the most popular route from St. Louis to Louisiana.

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

    Looking for the cheapest flight from St. Louis to Louisiana? While on average our users pay $406, our data indicates the cheapest price to be $240. The most popular route (Lambert-St Louis - New Orleans Louis Armstrong), is priced around $135.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from St. Louis to Louisiana (average of $256). Flying from St. Louis to Louisiana in April is currently the most expensive (average of $343). 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

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 St. Louis to Louisiana

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

Top 5 airlines flying from St. Louis to Louisiana

Discover the top 5 airlines that operate flights from St. Louis to Louisiana. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$127Average$238FlexibilityNo cancel feeOn-time62%
DeltaCheapest$196Average$297FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$198Average$343FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$212Average$449FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$240Average$414FlexibilityNo 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.