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St. Louis

$90+ 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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — STL
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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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 July 31, 2025.

Round-trip from

$189
(FlightHub)

One-way from

$90
(CheapOair)

Popular in

January

Cheapest in

November

Average price

$281

Good round-trip deal

$203 or less

Good one-way deal

$213 or less
From Louisiana to Lambert-St Louis
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One-way flight from Louisiana to Lambert-St Louis
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Highest demand for flights based on searches. 3% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Louisiana to Lambert-St Louis.
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Price to beat on a one-way flight from Louisiana to Lambert-St Louis.
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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 July 31, 2025.

This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/287:27 pmMSY - STL
1 stop18h 05mSpirit Airlines
Thu 9/412:05 pmSTL - MSY
1 stop22h 47mSpirit Airlines
Deal found 7/29$189
This Trip.com deal was found by Cheapflights users on 7/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/36:01 pmMSY - STL
1 stop15h 10mMultiple Airlines
Thu 9/412:05 pmSTL - MSY
1 stop7h 21mMultiple Airlines
Deal found 7/29$212
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/207:38 pmMSY - STL
1 stop13h 29mFrontier
Wed 10/227:52 pmSTL - MSY
1 stop23h 01mFrontier
Deal found 7/29$215
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 8/211:16 pmMSY - STL
1 stop5h 13mAmerican Airlines
Sat 8/237:19 amSTL - MSY
1 stop5h 24mAmerican Airlines
Deal found 7/31$232
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/137:30 amSHV - STL
1 stop5h 01mDelta
Sun 8/176:00 amSTL - SHV
1 stop6h 05mDelta
Deal found 7/28$239
This Southwest deal was found by Cheapflights users on 7/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:35 amMSY - STL
Nonstop1h 50mSouthwest
Sun 11/28:55 pmSTL - MSY
Nonstop1h 50mSouthwest
Deal found 7/30$240
This Delta deal was found by Cheapflights users on 7/31. 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 9/1110:27 amBTR - STL
1 stop5h 38mDelta
Tue 9/1611:04 amSTL - BTR
1 stop4h 48mDelta
Deal found 7/31$249
This United Airlines deal was found by Cheapflights users on 7/30. 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 9/162:15 pmLCH - STL
1 stop4h 43mUnited Airlines
Sat 9/206:15 amSTL - LCH
1 stop7h 01mUnited Airlines
Deal found 7/30$249
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 9/116:32 pmBTR - STL
1 stop5h 21mAmerican Airlines
Tue 9/169:56 amSTL - BTR
2 stops8h 07mAmerican Airlines
Deal found 7/31$254
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/1612:03 pmLCH - STL
2 stops9h 50mAmerican Airlines
Sat 9/203:59 pmSTL - LCH
1 stop6h 49mAmerican Airlines
Deal found 7/30$254
This Delta deal was found by Cheapflights users on 7/30. 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 8/144:00 pmLFT - STL
1 stop5h 27mDelta
Mon 8/185:11 pmSTL - LFT
1 stop5h 00mDelta
Deal found 7/30$259
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 8/86:42 pmSHV - STL
1 stop4h 32mAmerican Airlines
Sun 8/105:15 amSTL - SHV
1 stop4h 34mAmerican Airlines
Deal found 7/28$269

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 July 31, 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 8/28

7:27 pm-1:32 pm

1 stop18h 05m

Lambert-St Louis

Thu 9/4

12:05 pm-10:52 am

1 stop22h 47m

$189

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Sun 8/3

6:01 pm-9:11 am

1 stop15h 10m

Lambert-St Louis

Thu 9/4

12:05 pm-7:26 pm

1 stop7h 21m

$212

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Mon 10/20

7:38 pm-9:07 am

1 stop13h 29m

Lambert-St Louis

Wed 10/22

7:52 pm-6:53 pm

1 stop23h 01m

$215

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Tue 8/26

6:06 am-12:54 pm

1 stop6h 48m

Lambert-St Louis

Thu 8/28

5:15 am-10:19 am

1 stop5h 04m

$232

ShreveportSt. Louis

SHV - STL

SHVSTL

Shreveport

Wed 8/13

7:30 am-12:31 pm

1 stop5h 01m

Lambert-St Louis

Sun 8/17

6:00 am-12:05 pm

1 stop6h 05m

$239

Lake CharlesSt. Louis

LCH - STL

LCHSTL

Lake Charles

Tue 9/16

2:15 pm-6:58 pm

1 stop4h 43m

Lambert-St Louis

Sat 9/20

6:15 am-1:16 pm

1 stop7h 01m

$249

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 9/11

10:27 am-4:05 pm

1 stop5h 38m

Lambert-St Louis

Tue 9/16

11:04 am-3:52 pm

1 stop4h 48m

$249

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Mon 10/20

7:45 pm-9:30 pm

Nonstop1h 45m

Lambert-St Louis

Wed 10/22

5:05 am-10:00 am

1 stop4h 55m

$250

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 9/11

6:32 pm-11:53 pm

1 stop5h 21m

Lambert-St Louis

Tue 9/16

9:56 am-6:03 pm

2 stops8h 07m

$254

Lake CharlesSt. Louis

LCH - STL

LCHSTL

Lake Charles

Tue 9/16

12:03 pm-9:53 pm

2 stops9h 50m

Lambert-St Louis

Sat 9/20

3:59 pm-10:48 pm

1 stop6h 49m

$254

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 29 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, 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 July 31, 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.

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 31, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Louisiana to St. Louis. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,900 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,049 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 9 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Louisiana to St. Louis one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $90. Users have also found prices from $109 and $114 on Southwest and Delta, 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 $118. While the most popular route (New Orleans Louis Armstrong - Lambert-St Louis) can be booked for $211 on average our data indicates $377 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
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Festus
Farmington

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Alternative routes for Louisiana to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$218Average$337FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$223Average$327FlexibilityNo cancel feeOn-time71%
DeltaCheapest$226Average$285FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$296Average$413FlexibilityNo cancel feeOn-time63%

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