St. Louis

$79+ Cheap flights from New Orleans to St. Louis (MSY - 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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — STL
ago. 25 — sep. 11
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Cheapflights Tip: The best prices from New Orleans Louis Armstrong to Lambert-St Louis are usually found in November or December, booked 36 days in advance, depart on a Thursday or Saturday and return on a Monday

Cheap flight deals from New Orleans to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from New Orleans (MSY) to St. Louis (STL). 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 agosto 20, 2025.

Round-trip from

$164
(Cheapflightsfares)

One-way from

$79
(Cheapflightsfares)

Popular in

January

Cheapest in

November

Average price

$366

Good round-trip deal

$237 or less

Good one-way deal

$100 or less
From New Orleans Louis Armstrong to Lambert-St Louis
One-way flight from New Orleans Louis Armstrong to Lambert-St Louis
Highest demand for flights based on searches. 0% potential increase in price ($0 potential increase over avg. RT price).
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from New Orleans Louis Armstrong to Lambert-St Louis.
Price to beat on a one-way flight from New Orleans Louis Armstrong to Lambert-St Louis.

Find flight deals from New Orleans to St. Louis

Cheapest flights from New Orleans to St. Louis
Explore the most affordable flight options available from New Orleans to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 20, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/186:30 amMSY - STL
1 stop11h 15mSpirit Airlines
dom. 10/1910:57 amSTL - MSY
1 stop7h 53mSpirit Airlines
Deal found 8/20$164
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
jue. 10/1612:03 pmMSY - STL
1 stop22h 34mMultiple Airlines
dom. 10/1910:57 amSTL - MSY
1 stop7h 53mMultiple Airlines
Deal found 8/19$182
This FlightHub deal was found by Cheapflights users on 8/20. 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.
vie. 10/178:22 pmMSY - STL
1 stop21h 23mSpirit Airlines
dom. 10/1910:57 amSTL - MSY
1 stop7h 53mSpirit Airlines
Deal found 8/20$192
This FlightHub deal was found by Cheapflights users on 8/18. 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.
mié. 9/176:30 amMSY - STL
1 stop27h 10mMultiple Airlines
jue. 9/184:00 pmSTL - MSY
1 stop23h 57mMultiple Airlines
Deal found 8/18$193
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
mié. 10/86:50 pmMSY - STL
1 stop15h 47mMultiple Airlines
lun. 10/139:06 pmSTL - MSY
2 stops35h 27mMultiple Airlines
Deal found 8/18$202
This FlightHub deal was found by Cheapflights users on 8/18. 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.
dom. 9/74:51 pmMSY - STL
1 stop22h 13mMultiple Airlines
dom. 9/1410:35 amSTL - MSY
1 stop10h 19mMultiple Airlines
Deal found 8/18$205
This Mytrip deal was found by Cheapflights users on 8/20. 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.
sáb. 10/48:19 pmMSY - STL
1 stop13h 43mSpirit Airlines
sáb. 10/117:00 pmSTL - MSY
1 stop13h 07mSpirit Airlines
Deal found 8/20$207
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
lun. 10/68:22 pmMSY - STL
1 stop13h 40mMultiple Airlines
lun. 10/139:06 pmSTL - MSY
2 stops35h 27mMultiple Airlines
Deal found 8/19$218
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
vie. 9/125:52 pmMSY - STL
2 stops15h 14mMultiple Airlines
dom. 9/1410:35 amSTL - MSY
1 stop13h 17mMultiple Airlines
Deal found 8/19$220

Cheapflights Fare Finder

 
Customize your flight search to find flights from New Orleans 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 agosto 20, 2025.
Use the filters below to find and compare flights from New Orleans to St. Louis that are best for you.

Fly from

New Orleans

Fly to

St. Louis

Route

Depart

Return

Price

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

sáb. 10/18

6:30 am-5:45 pm

1 stop11h 15m

Lambert-St Louis

dom. 10/19

10:57 am-6:50 pm

1 stop7h 53m

$164

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

jue. 10/16

12:03 pm-10:37 am

1 stop22h 34m

Lambert-St Louis

dom. 10/19

10:57 am-6:50 pm

1 stop7h 53m

$182

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

vie. 10/17

8:22 pm-5:45 pm

1 stop21h 23m

Lambert-St Louis

dom. 10/19

10:57 am-6:50 pm

1 stop7h 53m

$192

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

mié. 9/17

6:30 am-9:40 am

1 stop27h 10m

Lambert-St Louis

jue. 9/18

4:00 pm-3:57 pm

1 stop23h 57m

$193

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

mié. 10/8

6:50 pm-10:37 am

1 stop15h 47m

Lambert-St Louis

lun. 10/13

9:06 pm-8:33 am

2 stops35h 27m

$202

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

dom. 9/7

4:51 pm-3:04 pm

1 stop22h 13m

Lambert-St Louis

dom. 9/14

10:35 am-8:54 pm

1 stop10h 19m

$205

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

sáb. 10/4

8:19 pm-10:02 am

1 stop13h 43m

Lambert-St Louis

sáb. 10/11

7:00 pm-8:07 am

1 stop13h 07m

$207

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

lun. 10/6

8:22 pm-10:02 am

1 stop13h 40m

Lambert-St Louis

lun. 10/13

9:06 pm-8:33 am

2 stops35h 27m

$218

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

vie. 9/12

5:52 pm-9:06 am

2 stops15h 14m

Lambert-St Louis

dom. 9/14

10:35 am-11:52 pm

1 stop13h 17m

$220

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

sáb. 10/18

6:30 am-5:45 pm

1 stop11h 15m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 17 results
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The best insider tips for New Orleans to St. Louis flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your New Orleans to St. Louis trip
Airports
MSY

Expect efficient security at MSY with average wait times around 15 minutes, thanks to a single checkpoint and lower passenger volumes.

Read more about MSYby Brandon Schultz
STL

Use the MetroLink light rail for a convenient, economical 40-minute ride from STL to downtown St. Louis.

Read more about STLby Taryn White
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on MSY

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from New Orleans 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 New Orleans to St. Louis

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

Use this chart to determine the optimal time to book a round-trip flight from New Orleans to St. Louis. Price data was last updated on August 8, 2025.

The price you pay for your flight from New Orleans to St. Louis may vary depending on when you book. For the best chance of a lower fare, look to book 36 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from New Orleans to St. Louis (average of $311). Flying from New Orleans 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 MSY to STL?

Find hourly flight availability from New Orleans 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 agosto 20, 2025.

It’s optimal to fly from New Orleans to St. Louis in the morning. By choosing this option you can save up to 32% on the cost of your flight, compared to a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from New Orleans to St. Louis. Price data was last updated on August 17, 2025.

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

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 agosto 20, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from New Orleans to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
8.0
Very good

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from New Orleans 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 airports do I use to fly from New Orleans to St. Louis?

    Booking a flight from New Orleans Louis Armstrong (MSY) to Lambert-St Louis (STL) is your only option if you wish to fly from New Orleans to St. Louis. On a typical day, there is 1 flight from Louis Armstrong to Lambert-St Louis, all of which are around 1h 50m for a nonstop flight. You can also purchase a plane ticket from 4 airlines when you book a flight from Louis Armstrong to St. Louis.

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

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

    Airlines like Spirit Airlines fly from New Orleans to St. Louis in about 11h 15m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 605 mi.

  • What are the cheapest airlines flying from New Orleans to St. Louis round-trip?

    According to our current data, Delta ($198), United Airlines ($218), and American Airlines ($248) offers the cheapest pricing from New Orleans to St. Louis. Delta is currently priced 45% below the average price you’ll pay for this route.

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

    The cheapest flight price from New Orleans to St. Louis is $79. On average you can expect to pay $253. The most popular route, (New Orleans Louis Armstrong - Lambert-St Louis), can usually be booked for $165.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from New Orleans to St. Louis (average of $311). Flying from New Orleans 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
Fairview Heights
Maryland Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Farmington
Festus

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Top 4 airlines flying from New Orleans to St. Louis

Discover the top 4 airlines that operate flights from New Orleans 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 agosto 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$198Average$278FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$218Average$314FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$248Average$332FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$278Average$406FlexibilityNo cancel feeOn-time63%

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