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St. Louis

$79+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — STL
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
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Cheap 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 December 28, 2025.

This American Airlines deal was found by Cheapflights users on 12/26. 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.
Tue 12/305:40 amSHV - STL
1 stop5h 10mAmerican Airlines
Sun 1/45:16 amSTL - SHV
1 stop3h 52mAmerican Airlines
Deal found 12/26$309
This American Airlines deal was found by Cheapflights users on 12/26. 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.
Tue 12/305:54 pmLFT - STL
1 stop5h 02mAmerican Airlines
Fri 1/23:30 pmSTL - LFT
1 stop7h 22mAmerican Airlines
Deal found 12/26$354
This Delta deal was found by Cheapflights users on 12/27. 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.
Mon 12/296:59 pmBTR - STL
1 stop4h 43mDelta
Wed 1/77:10 amSTL - BTR
1 stop6h 20mDelta
Deal found 12/27$354
This American Airlines deal was found by Cheapflights users on 12/27. 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 12/294:21 pmBTR - STL
2 stops7h 23mAmerican Airlines
Wed 1/79:25 amSTL - BTR
1 stop6h 42mAmerican Airlines
Deal found 12/27$359
This Delta deal was found by Cheapflights users on 12/26. 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 12/306:54 pmMSY - STL
1 stop4h 48mDelta
Fri 1/210:04 amSTL - MSY
1 stop6h 56mDelta
Deal found 12/26$377
This United Airlines deal was found by Cheapflights users on 12/27. 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 12/317:00 amMSY - STL
2 stops9h 27mUnited Airlines
Fri 1/211:05 amSTL - MSY
1 stop5h 10mUnited Airlines
Deal found 12/27$382
This American Airlines deal was found by Cheapflights users on 12/26. 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.
Tue 12/302:18 pmBTR - STL
2 stops9h 26mAmerican Airlines
Fri 1/26:41 amSTL - BTR
2 stops9h 09mAmerican Airlines
Deal found 12/26$395
This American Airlines deal was found by Cheapflights users on 12/28. 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 12/296:53 pmMSY - STL
1 stop5h 02mAmerican Airlines
Mon 1/54:53 pmSTL - MSY
1 stop5h 16mAmerican Airlines
Deal found 12/28$403
This United Airlines deal was found by Cheapflights users on 12/26. 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.
Tue 12/307:00 amMSY - STL
1 stop5h 27mUnited Airlines
Fri 1/28:05 amSTL - MSY
2 stops7h 56mUnited Airlines
Deal found 12/26$452
This United Airlines deal was found by Cheapflights users on 12/26. 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.
Mon 12/295:07 pmMSY - STL
1 stop4h 48mUnited Airlines
Fri 1/211:05 amSTL - MSY
2 stops12h 54mUnited Airlines
Deal found 12/26$478
This United Airlines deal was found by Cheapflights users on 12/26. 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.
Mon 12/297:00 amMSY - STL
2 stops9h 27mUnited Airlines
Mon 12/295:45 pmSTL - MSY
1 stop5h 43mUnited Airlines
Deal found 12/26$528
This United Airlines deal was found by Cheapflights users on 12/27. 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.
Tue 12/305:15 amSHV - STL
2 stops11h 12mUnited Airlines
Sun 1/411:05 amSTL - SHV
2 stops11h 41mUnited Airlines
Deal found 12/27$536

Find 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 December 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$173
(Kiwi.com)

One-way from

$79
(Kiwi.com)

Popular in

September

Cheapest in

May

Average price

$391

Good one-way deal

$237 or less
Provider with most accurate pricing for New Orleans Louis Armstrong-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for New Orleans Louis Armstrong-Lambert-St Louis flights.
Search Deals
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. 6% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a one-way flight from Louisiana to Lambert-St Louis.
Search Deals

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 December 28, 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

Fri 1/16

12:52 pm-10:34 pm

1 stop9h 42m

Lambert-St Louis

Sun 1/18

10:06 am-8:21 am

2 stops22h 15m

$193

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 2/12

6:15 am-11:59 pm

2 stops17h 44m

Lambert-St Louis

Mon 2/16

3:49 pm-4:05 pm

1 stop24h 16m

$236

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Fri 2/13

10:15 am-6:51 am

2 stops20h 36m

Lambert-St Louis

Fri 2/20

1:59 pm-12:24 am

1 stop10h 25m

$239

ShreveportSt. Louis

SHV - STL

SHVSTL

Shreveport

Fri 2/20

5:38 pm-11:36 pm

1 stop5h 58m

Lambert-St Louis

Sat 2/21

5:01 pm-10:17 pm

1 stop5h 16m

$249

ShreveportSt. Louis

SHV - STL

SHVSTL

Shreveport

Fri 2/20

6:00 am-10:59 am

1 stop4h 59m

Lambert-St Louis

Sat 2/21

3:31 pm-9:54 pm

1 stop6h 23m

$249

LafayetteSt. Louis

LFT - STL

LFTSTL

Lafayette Regional

Thu 2/26

5:15 am-9:23 am

1 stop4h 08m

Lambert-St Louis

Sun 3/1

6:00 am-11:22 am

1 stop5h 22m

$269

LafayetteSt. Louis

LFT - STL

LFTSTL

Lafayette Regional

Fri 4/24

5:19 pm-11:33 pm

1 stop6h 14m

Lambert-St Louis

Sun 4/26

7:15 am-2:19 pm

1 stop7h 04m

$269

LafayetteSt. Louis

LFT - STL

LFTSTL

Lafayette Regional

Fri 4/24

5:19 pm-11:33 pm

1 stop6h 14m

Lambert-St Louis

Mon 4/27

6:00 am-10:34 am

1 stop4h 34m

$269

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Fri 2/13

7:09 pm-11:36 pm

1 stop4h 27m

Lambert-St Louis

Fri 2/20

3:47 pm-10:01 pm

1 stop6h 14m

$269

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Fri 1/23

4:02 pm-8:37 pm

1 stop4h 35m

Lambert-St Louis

Fri 1/30

6:00 am-12:48 pm

1 stop6h 48m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 42 results
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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, December is the cheapest month in which you can book a flight from Louisiana to St. Louis (average of $80). Flying from Louisiana to St. Louis in June is currently the most expensive (average of $254). 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 December 28, 2025.

One of the essential ways to save on airfare from Louisiana to St. Louis is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 4% on airfare.

What is the cheapest day to fly from Louisiana to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Louisiana to St. Louis. Price data was last updated on December 27, 2025.

Travelers seeking maximum savings on their Louisiana to St. Louis flight should consider departing on Wednesday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 8 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?

    Delta, American Airlines, and United Airlines can get you from Louisiana to St. Louis in just under 4h 08m. Your travel time can differ by up to 1h 50m. 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 cheapest airlines to fly from Louisiana to St. Louis one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $98. Users have also found prices from $98 and $99 on United Airlines and American Airlines, respectively.

  • 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 Shreveport - Lambert-St Louis or Baton Rouge Ryan - Lambert-St Louis.

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

    Looking at all options, your cheapest flight can be booked for $117. While the most popular route (New Orleans Louis Armstrong - Lambert-St Louis) can be booked for $180 on average, our data indicates $309 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, December is the cheapest month in which you can book a flight from Louisiana to St. Louis (average of $80). Flying from Louisiana to St. Louis in June is currently the most expensive (average of $254). 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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

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Alternative routes for Louisiana to St. Louis

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Top 5 airlines flying from Louisiana to St. Louis

Discover the top 5 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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$72Average$184FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$209Average$383FlexibilityNo cancel feeOn-time71%
DeltaCheapest$214Average$307FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$218Average$378FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$278Average$391FlexibilityNo cancel feeOn-time63%

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