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St. Louis

$72+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — STL
Jun 22 — Jun 291
Sun 6/22
Sun 6/29
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 June 17, 2025.

Round-trip from

$145
(American Airlines)

One-way from

$72
(American Airlines)

Popular in

January

Cheapest in

July

Average price

$390

Good round-trip deal

$330 or less

Good one-way deal

$197 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. 4% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 17, 2025.

This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:46 pmMSY - STL
1 stop5h 41mAmerican Airlines
Mon 9/86:27 amSTL - MSY
1 stop4h 58mAmerican Airlines
Deal found 6/16$145
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/16:26 pmBTR - STL
1 stop4h 53mAmerican Airlines
Sat 7/55:30 amSTL - BTR
1 stop4h 44mAmerican Airlines
Deal found 6/16$199
This Booking.com deal was found by Cheapflights users on 6/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/106:01 pmMSY - STL
1 stop15h 10mMultiple Airlines
Wed 7/3011:24 amSTL - MSY
1 stop7h 51mMultiple Airlines
Deal found 6/15$200
This Mytrip deal was found by Cheapflights users on 6/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/104:04 pmMSY - STL
2 stops17h 48mSpirit Airlines
Wed 7/3011:24 amSTL - MSY
1 stop7h 51mSpirit Airlines
Deal found 6/16$202
This Delta deal was found by Cheapflights users on 6/16. 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.
Mon 8/47:21 pmMSY - STL
1 stop4h 32mDelta
Wed 8/61:29 pmSTL - MSY
1 stop6h 26mDelta
Deal found 6/16$207
This Southwest deal was found by Cheapflights users on 6/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/115:10 amMSY - STL
1 stop5h 55mSouthwest
Wed 8/206:10 amSTL - MSY
1 stop6h 50mSouthwest
Deal found 6/15$217
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/309:38 amBTR - STL
1 stop5h 26mDelta
Sat 7/56:00 amSTL - BTR
1 stop5h 42mDelta
Deal found 6/15$217
This Delta deal was found by Cheapflights users on 6/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2612:00 pmSHV - STL
1 stop6h 47mDelta
Sun 7/275:23 pmSTL - SHV
1 stop5h 55mDelta
Deal found 6/14$229
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:20 amSHV - STL
2 stops10h 01mUnited Airlines
Sun 12/76:15 amSTL - SHV
1 stop4h 59mUnited Airlines
Deal found 6/16$234
This American Airlines deal was found by Cheapflights users on 6/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/305:12 pmSHV - STL
1 stop6h 47mAmerican Airlines
Fri 7/49:24 amSTL - SHV
1 stop6h 32mAmerican Airlines
Deal found 6/15$239
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/105:39 pmLFT - STL
1 stop6h 14mDelta
Tue 7/1510:46 amSTL - LFT
1 stop6h 13mDelta
Deal found 6/15$249
This Booking.com deal was found by Cheapflights users on 6/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/196:01 pmMSY - STL
1 stop15h 11mFrontier
Sat 6/217:29 pmSTL - MSY
1 stop21h 37mFrontier
Deal found 6/15$258

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 June 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

Fri 9/5

12:46 pm-6:27 pm

1 stop5h 41m

Lambert-St Louis

Mon 9/8

6:27 am-11:25 am

1 stop4h 58m

$145

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Tue 7/1

6:26 pm-11:19 pm

1 stop4h 53m

Lambert-St Louis

Sat 7/5

5:30 am-10:14 am

1 stop4h 44m

$199

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 7/10

6:01 pm-9:11 am

1 stop15h 10m

Lambert-St Louis

Wed 7/30

11:24 am-7:15 pm

1 stop7h 51m

$200

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 7/10

4:04 pm-9:52 am

2 stops17h 48m

Lambert-St Louis

Wed 7/30

11:24 am-7:15 pm

1 stop7h 51m

$202

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Mon 8/4

7:21 pm-11:53 pm

1 stop4h 32m

Lambert-St Louis

Wed 8/6

1:29 pm-7:55 pm

1 stop6h 26m

$207

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Mon 8/11

5:10 am-11:05 am

1 stop5h 55m

Lambert-St Louis

Wed 8/20

6:10 am-1:00 pm

1 stop6h 50m

$217

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Mon 6/30

9:38 am-3:04 pm

1 stop5h 26m

Lambert-St Louis

Sat 7/5

6:00 am-11:42 am

1 stop5h 42m

$217

ShreveportSt. Louis

SHV - STL

SHVSTL

Shreveport

Sat 7/26

12:00 pm-6:47 pm

1 stop6h 47m

Lambert-St Louis

Sun 7/27

5:23 pm-11:18 pm

1 stop5h 55m

$229

ShreveportSt. Louis

SHV - STL

SHVSTL

Shreveport

Mon 6/30

5:12 pm-11:59 pm

1 stop6h 47m

Lambert-St Louis

Fri 7/4

9:24 am-3:56 pm

1 stop6h 32m

$239

LafayetteSt. Louis

LFT - STL

LFTSTL

Lafayette Regional

Thu 7/10

5:39 pm-11:53 pm

1 stop6h 14m

Lambert-St Louis

Tue 7/15

10:46 am-4:59 pm

1 stop6h 13m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 31 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 June 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.

Weekly flight availability from Louisiana to St. Louis

Explore weekly flight availability from Louisiana to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 17, 2025.

The most flights from USLA to STL are scheduled on a Sunday (3 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 June 17, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Louisiana to St. Louis to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,279 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,801 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $72. Users have also found prices from $94 and $99 on Spirit Airlines and Southwest, 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 $119. While the most popular route (New Orleans Louis Armstrong - Lambert-St Louis) can be booked for $200 on average our data indicates $344 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 Louisiana?

Book flights to Louisiana if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Festus
Alton
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 June 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$178Average$321FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$188Average$337FlexibilityNo cancel feeOn-time69%
DeltaCheapest$206Average$265FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$296Average$414FlexibilityNo cancel feeOn-time63%

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