New Orleans

$68+ Cheap flights from St. Louis to New Orleans (STL - MSY)

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
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Cheapflights Tip: The best prices from Lambert-St Louis to New Orleans Louis Armstrong are usually found in November or June, booked 74 days in advance, depart on a Monday or Tuesday and return on a Thursday

Cheap flight deals from St. Louis to New Orleans

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to New Orleans (MSY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data 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 New Orleans Louis Armstrong
One-way flight from Lambert-St Louis to New Orleans Louis Armstrong
Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Lambert-St Louis to New Orleans Louis Armstrong.

Find flight deals from St. Louis to New Orleans

Cheapest flights from St. Louis to New Orleans
Explore the most affordable flight options available from St. Louis to New Orleans. 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

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to New Orleans 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 New Orleans that are best for you.

Fly from

St. Louis

Fly to

New Orleans

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 21 results
1
2
3

Best time to book a flight from St. Louis to New Orleans

Have a flexible travel schedule? Discover the best time to fly to New Orleans 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 New Orleans

How far ahead should I book a flight from St. Louis to New Orleans?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to New Orleans. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to New Orleans, you should look to book at least 74 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from St. Louis to New Orleans (average of $256). Flying from St. Louis to New Orleans 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 MSY?

Find hourly flight availability from St. Louis to New Orleans. 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.

Unlike in the evening, when flights are generally more expensive, you can save up to 12% on flights from St. Louis to New Orleans by exploring options for tickets at noon.

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

Reviews of airlines servicing New Orleans

Get insights into the airlines that provide service to New Orleans. 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 New Orleans. Reviews last updated September 15, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from St. Louis to New Orleans have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

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

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

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
8.0
Very good

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

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

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

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

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

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

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

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 New Orleans. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from St. Louis to New Orleans?

    If you wish to fly to New Orleans from St. Louis, then you need to book flights from Lambert-St Louis to New Orleans Louis Armstrong. There is 1 flight from Lambert-St Louis (STL) to Louis Armstrong (MSY) per day to choose from. Flights to New Orleans from Lambert-St Louis are available from 5 different airlines, which means you should have some options if you want to compare airfare deals. 1h 40m is how long a nonstop flight from St. Louis to New Orleans Louis Armstrong typically takes.

  • How popular is this St. Louis to New Orleans flight route?

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

    Airlines like United Airlines and Delta fly from St. Louis to New Orleans in about 4h 44m. The time it takes to get you to your destination can typically vary by up to 1h 39m. St. Louis and New Orleans are separated by a distance of 605 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 flying from St. Louis to New Orleans round-trip?

    Cheapflights users have booked flights from St. Louis to New Orleans round-trip from $127. Other airlines that can offer you cheap pricing are Delta, from $196, and United Airlines, from $212. These flights start at 67% lower than the current average price 3 months from now.

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

    On average you can expect to pay $465 for a flight from St. Louis to New Orleans. The cheapest flight overall is $240 while the most popular route, (Lambert-St Louis - New Orleans Louis Armstrong) is currently priced at $135.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to New Orleans 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 New Orleans?

    Currently, August is the cheapest month in which you can book a flight from St. Louis to New Orleans (average of $256). Flying from St. Louis to New Orleans 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

Traveling to a place near New Orleans?

Book flights to New Orleans if you plan to visit one of these locations
Metairie
Kenner
Slidell
Houma
Covington
Thibodaux
Gretna
Hammond
Gonzales

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from St. Louis to New Orleans

Discover the top 5 airlines that operate flights from St. Louis to New Orleans. 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$277FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$212Average$374FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$240Average$414FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$243Average$332FlexibilityNo cancel feeOn-time71%

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