St. Louis

$76+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — STL
Oct 11 — Oct 181
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Cheapflights Tip: The best prices from New Orleans Louis Armstrong to Lambert-St Louis are usually found in November or May, booked 36 days in advance, depart on a Thursday or Tuesday 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 September 11, 2025.

Round-trip from

$176
(Orbitz)

One-way from

$76
(Kiwi.com)

Popular in

January

Cheapest in

November

Average price

$362

Good round-trip deal

$196 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. 4% potential increase in price ($16 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 September 2025
Price to beat on a round-trip 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/9. 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 11/67:45 pmMSY - STL
1 stop13h 22mFrontier
Sun 11/911:17 amSTL - MSY
1 stop5h 43mFrontier
Deal found 9/9$152
This Orbitz deal was found by Cheapflights users on 9/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/16:41 amMSY - STL
1 stop11h 29mMultiple Airlines
Mon 11/310:25 amSTL - MSY
1 stop6h 32mMultiple Airlines
Deal found 9/9$176
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 11/67:45 pmMSY - STL
1 stop13h 22mMultiple Airlines
Sun 11/97:02 pmSTL - MSY
2 stops20h 34mMultiple Airlines
Deal found 9/9$190
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 11/77:45 pmMSY - STL
1 stop13h 22mFrontier
Sun 11/911:17 amSTL - MSY
1 stop5h 43mFrontier
Deal found 9/9$196
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/165:55 pmMSY - STL
1 stop16h 42mMultiple Airlines
Sat 10/187:15 pmSTL - MSY
1 stop12h 52mMultiple Airlines
Deal found 9/10$197
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/176:27 pmMSY - STL
1 stop14h 40mMultiple Airlines
Sun 10/1910:57 amSTL - MSY
1 stop12h 56mMultiple Airlines
Deal found 9/9$203
This Delta deal was found by Cheapflights users on 9/10. 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 10/810:32 amMSY - STL
1 stop5h 23mDelta
Wed 10/1511:21 amSTL - MSY
1 stop4h 26mDelta
Deal found 9/10$207
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 11/712:26 pmMSY - STL
2 stops20h 41mMultiple Airlines
Sun 11/911:17 amSTL - MSY
1 stop5h 43mMultiple Airlines
Deal found 9/9$208
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/106:27 pmMSY - STL
1 stop14h 40mMultiple Airlines
Fri 10/1710:59 pmSTL - MSY
2 stops25h 24mMultiple Airlines
Deal found 9/10$219

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 September 11, 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

Sat 11/1

6:41 am-6:10 pm

1 stop11h 29m

Lambert-St Louis

Mon 11/3

10:25 am-4:57 pm

1 stop6h 32m

$176

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 10/8

10:32 am-3:55 pm

1 stop5h 23m

Lambert-St Louis

Wed 10/15

11:21 am-3:47 pm

1 stop4h 26m

$207

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Fri 10/10

6:27 pm-9:07 am

1 stop14h 40m

Lambert-St Louis

Fri 10/17

10:59 pm-12:23 am

2 stops25h 24m

$219

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 10/15

7:55 pm-10:02 am

1 stop14h 07m

Lambert-St Louis

Sun 10/19

10:57 am-11:53 pm

1 stop12h 56m

$232

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Tue 10/21

5:26 pm-10:35 pm

1 stop5h 09m

Lambert-St Louis

Thu 10/23

6:15 am-10:48 am

1 stop4h 33m

$234

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Sat 10/4

3:10 pm-10:00 pm

1 stop6h 50m

Lambert-St Louis

Mon 10/13

5:15 pm-11:34 pm

1 stop6h 19m

$234

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Sat 9/27

8:19 pm-9:40 am

1 stop13h 21m

Lambert-St Louis

Sun 10/5

4:00 pm-10:52 am

1 stop18h 52m

$245

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Tue 10/21

11:05 am-12:50 pm

Nonstop1h 45m

Lambert-St Louis

Thu 10/23

7:50 am-9:35 am

Nonstop1h 45m

$262

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 9/25

3:22 pm-1:02 pm

2 stops21h 40m

Lambert-St Louis

Sun 10/5

10:57 am-11:53 pm

1 stop12h 56m

$269

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Mon 9/29

5:20 am-1:02 pm

1 stop7h 42m

Lambert-St Louis

Sun 10/5

4:00 pm-10:52 am

1 stop18h 52m

$272

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 23 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 29, 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 September 11, 2025.

It’s optimal to fly from New Orleans to St. Louis in the afternoon. By choosing this option you can save up to 38% 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 September 7, 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 September 11, 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.

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

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

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

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

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

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

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

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

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

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 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 45m 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 Delta, Spirit Airlines, and United Airlines fly from New Orleans to St. Louis in about 5h 09m. The time it takes to get you to your destination can typically vary by up to 8h 58m. Airlines will cover a distance of 605 mi. This flight may include one or multiple stops.

  • 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 46% 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 $188. On average you can expect to pay $340. The most popular route, (New Orleans Louis Armstrong - Lambert-St Louis), can usually be booked for $170.

  • 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
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$198Average$258FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$218Average$302FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$248Average$332FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$278Average$406FlexibilityNo cancel feeOn-time63%

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