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St. Louis

$55+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — STL
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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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 November 3, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/35:02 pmMSY - STL
1 stop18h 05mMultiple Airlines
Fri 12/510:42 amSTL - MSY
1 stop5h 45mMultiple Airlines
Deal found 11/3$181
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Sat 11/153:21 pmMSY - STL
1 stop18h 51mMultiple Airlines
Mon 11/177:45 pmSTL - MSY
2 stops24h 56mMultiple Airlines
Deal found 11/1$199
This Booking.com deal was found by Cheapflights users on 11/3. 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 11/137:45 pmMSY - STL
1 stop13h 22mFrontier
Sat 11/157:45 pmSTL - MSY
1 stop16h 23mFrontier
Deal found 11/3$202
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Sat 12/134:58 pmMSY - STL
1 stop16h 49mMultiple Airlines
Wed 12/173:30 pmSTL - MSY
1 stop7h 20mMultiple Airlines
Deal found 11/1$226
This Delta deal was found by Cheapflights users on 11/2. 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.
Fri 12/126:00 amSHV - STL
1 stop4h 45mDelta
Sun 12/147:02 pmSTL - SHV
1 stop4h 26mDelta
Deal found 11/2$229
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Tue 12/165:15 amMSY - STL
1 stop17h 18mMultiple Airlines
Tue 12/2310:48 amSTL - MSY
1 stop5h 07mMultiple Airlines
Deal found 11/1$231
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 11/193:21 pmMSY - STL
1 stop7h 40mMultiple Airlines
Sat 11/229:52 amSTL - MSY
1 stop8h 38mMultiple Airlines
Deal found 11/3$232
This Delta deal was found by Cheapflights users on 11/3. 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.
Thu 12/189:16 amMSY - STL
1 stop6h 50mDelta
Mon 12/229:47 amSTL - MSY
1 stop6h 34mDelta
Deal found 11/3$239
This American Airlines deal was found by Cheapflights users on 11/2. 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 12/26:19 pmLFT - STL
1 stop4h 40mAmerican Airlines
Tue 12/95:14 amSTL - LFT
1 stop4h 21mAmerican Airlines
Deal found 11/2$249
This Delta deal was found by Cheapflights users on 11/2. 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.
Sat 12/206:59 pmBTR - STL
1 stop4h 43mDelta
Tue 1/67:10 amSTL - BTR
1 stop6h 22mDelta
Deal found 11/2$249
This Frontier deal was found by Cheapflights users on 11/2. 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.
Sat 12/205:04 pmMSY - STL
1 stop5h 29mFrontier
Thu 1/810:42 amSTL - MSY
1 stop6h 19mFrontier
Deal found 11/2$250
This American Airlines deal was found by Cheapflights users on 11/2. 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.
Sat 12/137:00 amBTR - STL
2 stops9h 19mAmerican Airlines
Mon 12/159:30 amSTL - BTR
1 stop4h 15mAmerican Airlines
Deal found 11/2$254

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 November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$181
(Kiwi.com)

One-way from

$55
(Priceline)

Popular in

September

Cheapest in

December

Average price

$389

Good round-trip deal

$226 or less

Good one-way deal

$142 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 ($27 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 November 2025
Search Deals
Price to beat on a round-trip flight from Louisiana to Lambert-St Louis.
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 November 3, 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

Wed 12/3

5:02 pm-11:07 am

1 stop18h 05m

Lambert-St Louis

Fri 12/5

10:42 am-4:27 pm

1 stop5h 45m

$181

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Sat 11/15

3:21 pm-10:12 am

1 stop18h 51m

Lambert-St Louis

Mon 11/17

7:45 pm-8:41 pm

2 stops24h 56m

$199

ShreveportSt. Louis

SHV - STL

SHVSTL

Shreveport

Fri 12/12

6:00 am-10:45 am

1 stop4h 45m

Lambert-St Louis

Sun 12/14

7:02 pm-11:28 pm

1 stop4h 26m

$229

ShreveportSt. Louis

SHV - STL

SHVSTL

Shreveport

Sat 12/13

6:00 am-10:24 am

1 stop4h 24m

Lambert-St Louis

Tue 12/16

9:30 am-4:14 pm

1 stop6h 44m

$229

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 11/19

3:21 pm-11:01 pm

1 stop7h 40m

Lambert-St Louis

Sat 11/22

9:52 am-6:30 pm

1 stop8h 38m

$232

ShreveportSt. Louis

SHV - STL

SHVSTL

Shreveport

Sat 12/13

5:22 am-10:04 am

1 stop4h 42m

Lambert-St Louis

Tue 12/16

11:25 am-9:09 pm

2 stops9h 44m

$234

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Tue 12/23

6:15 am-12:21 pm

1 stop6h 06m

Lambert-St Louis

Mon 1/5

12:00 pm-5:52 pm

1 stop5h 52m

$239

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 12/18

6:20 am-10:45 am

1 stop4h 25m

Lambert-St Louis

Tue 1/6

12:00 pm-5:52 pm

1 stop5h 52m

$239

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 12/24

2:43 pm-10:16 pm

1 stop7h 33m

Lambert-St Louis

Mon 1/5

12:00 pm-4:17 pm

1 stop4h 17m

$239

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 12/18

9:16 am-4:06 pm

1 stop6h 50m

Lambert-St Louis

Mon 12/22

9:47 am-4:21 pm

1 stop6h 34m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 45 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, January is the cheapest month in which you can book a flight from Louisiana to St. Louis (average of $106). 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 November 3, 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 at noon tend to be the most expensive. A flight in the evening could potentially save you up to 11% 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 16, 2024.

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.

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?

    Delta, United Airlines, and American Airlines can get you from Louisiana to St. Louis in just under 4h 40m. Your travel time can differ by up to 05m. 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 $120. Users have also found prices from $120 and $125 on Southwest and United 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 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 $124. While the most popular route (New Orleans Louis Armstrong - Lambert-St Louis) can be booked for $199 on average, our data indicates $280 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, January is the cheapest month in which you can book a flight from Louisiana to St. Louis (average of $106). 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
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$72Average$184FlexibilityNo cancel feeOn-time62%
DeltaCheapest$196Average$294FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$218Average$347FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$223Average$380FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$278Average$393FlexibilityNo cancel feeOn-time63%

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