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$69+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — STL
Jan 1 — Jan 81
Thu 1/1
Thu 1/8
1 adult, Economy
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Cheap 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 December 2, 2025.

This Mytrip deal was found by Cheapflights users on 11/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/121:52 pmMSY - STL
1 stop8h 41mFrontier
Sat 1/105:11 pmSTL - MSY
1 stop18h 47mFrontier
Deal found 11/30$196
This Expedia deal was found by Cheapflights users on 12/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/121:52 pmMSY - STL
1 stop8h 41mFrontier
Sun 12/1410:42 amSTL - MSY
1 stop5h 35mFrontier
Deal found 12/1$212
This American Airlines deal was found by Cheapflights users on 12/1. 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 12/2510:27 amMSY - STL
1 stop12h 29mAmerican Airlines
Thu 1/19:36 amSTL - MSY
1 stop9h 12mAmerican Airlines
Deal found 12/1$225
This Kiwi.com deal was found by Cheapflights users on 12/1. 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.
Wed 12/103:20 pmMSY - STL
1 stop22h 32mMultiple Airlines
Fri 12/127:43 pmSTL - MSY
2 stops25h 14mMultiple Airlines
Deal found 12/1$232
This Frontier deal was found by Cheapflights users on 11/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:02 pmMSY - STL
1 stop8h 31mFrontier
Mon 12/810:47 amSTL - MSY
1 stop5h 40mFrontier
Deal found 11/30$234
This Frontier deal was found by Cheapflights users on 11/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:02 pmMSY - STL
1 stop8h 31mFrontier
Sun 12/710:42 amSTL - MSY
1 stop5h 35mFrontier
Deal found 11/30$238
This Kiwi.com deal was found by Cheapflights users on 11/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:22 pmMSY - STL
2 stops39h 37mMultiple Airlines
Sat 1/107:43 pmSTL - MSY
1 stop21h 17mMultiple Airlines
Deal found 11/30$241
This Kiwi.com deal was found by Cheapflights users on 12/1. 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 12/121:52 pmMSY - STL
2 stops20h 22mMultiple Airlines
Thu 12/1810:42 amSTL - MSY
1 stop10h 15mMultiple Airlines
Deal found 12/1$260
This Kiwi.com deal was found by Cheapflights users on 11/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:40 amMSY - STL
2 stops15h 53mMultiple Airlines
Thu 1/110:42 amSTL - MSY
1 stop5h 45mMultiple Airlines
Deal found 11/30$261
This Kiwi.com deal was found by Cheapflights users on 11/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/72:02 pmMSY - STL
1 stop18h 57mMultiple Airlines
Tue 12/93:30 pmSTL - MSY
2 stops40h 52mMultiple Airlines
Deal found 11/29$274
This Kiwi.com deal was found by Cheapflights users on 11/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:00 pmMSY - STL
2 stops29h 33mMultiple Airlines
Sun 1/411:51 amSTL - MSY
1 stop20h 56mMultiple Airlines
Deal found 11/30$284

Find 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 December 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$171
(American Airlines)

One-way from

$69
(Kiwi.com)

Popular in

September

Cheapest in

December

Average price

$318

Good round-trip deal

$379 or less

Good one-way deal

$169 or less
Provider with most accurate pricing for New Orleans Louis Armstrong-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for New Orleans Louis Armstrong-Lambert-St Louis flights.
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From New Orleans Louis Armstrong to Lambert-St Louis
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One-way flight from New Orleans Louis Armstrong to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from New Orleans Louis Armstrong to Lambert-St Louis.
Search Deals
Price to beat on a one-way flight from New Orleans Louis Armstrong to Lambert-St Louis.
Search Deals

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 December 2, 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

Wed 1/21

1:27 pm-10:59 pm

1 stop9h 32m

Lambert-St Louis

Wed 1/28

9:25 am-5:08 pm

1 stop7h 43m

$171

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Tue 1/20

7:21 am-4:14 pm

1 stop8h 53m

Lambert-St Louis

Thu 1/22

11:55 am-7:41 pm

1 stop7h 46m

$178

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 1/14

7:21 am-7:29 pm

1 stop12h 08m

Lambert-St Louis

Sun 1/18

9:25 am-10:59 pm

1 stop13h 34m

$198

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Fri 12/12

1:52 pm-10:33 pm

1 stop8h 41m

Lambert-St Louis

Sun 12/14

10:42 am-4:17 pm

1 stop5h 35m

$212

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Tue 1/20

7:42 pm-11:33 pm

2 stops27h 51m

Lambert-St Louis

Thu 1/22

5:42 pm-10:07 am

1 stop16h 25m

$238

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 1/8

5:24 pm-11:39 pm

1 stop6h 15m

Lambert-St Louis

Mon 1/12

6:00 am-10:45 am

1 stop4h 45m

$241

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Fri 12/12

5:22 pm-8:59 am

2 stops39h 37m

Lambert-St Louis

Sat 1/10

7:43 pm-5:00 pm

1 stop21h 17m

$241

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Fri 12/12

1:52 pm-10:14 am

2 stops20h 22m

Lambert-St Louis

Thu 12/18

10:42 am-8:57 pm

1 stop10h 15m

$260

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Thu 12/25

6:40 am-10:33 pm

2 stops15h 53m

Lambert-St Louis

Thu 1/1

10:42 am-4:27 pm

1 stop5h 45m

$261

New OrleansSt. Louis

MSY - STL

MSYSTL

New Orleans Louis Armstrong

Wed 1/21

10:31 am-5:18 pm

1 stop6h 47m

Lambert-St Louis

Wed 1/28

9:57 am-5:46 pm

2 stops7h 49m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/30

Showing 1-10 of 21 results
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Compare providers for flights from New Orleans to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from New Orleans to St. Louis in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on New Orleans-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on New Orleans-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from New Orleans-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on New Orleans-St. Louis flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for New Orleans-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

Currently, January is the cheapest month in which you can book a flight from New Orleans to St. Louis (average of $106). Flying from New Orleans to St. Louis in March is currently the most expensive (average of $284). 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 December 2, 2025.

It’s optimal to fly from New Orleans to St. Louis at noon. By choosing this option you can save up to 4% on the cost of your flight, compared to a flight in the afternoon.

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 November 29, 2025.

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

The best insider tips for New Orleans to St. Louis flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
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

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 December 2, 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.
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,253 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,011 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,063 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,045 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.8
Fair
3,094 reviews
Southwest
8.0
Very good
4,253 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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.

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

    The New Orleans Louis Armstrong to Lambert-St Louis flight path was viewed by 9 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Airlines like American Airlines and Frontier fly from New Orleans to St. Louis in about 8h 41m. The time it takes to get you to your destination can typically vary by up to 51m. 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, Frontier ($55), United Airlines ($133), and Delta ($196) offers the cheapest pricing from New Orleans to St. Louis. Frontier is currently priced 85% below the average price you’ll pay for this route.

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

    The cheapest airlines for a one-way flight from New Orleans to St. Louis are Delta ($98), United Airlines ($98), and Frontier ($101).

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

    The cheapest flight price from New Orleans to St. Louis is $144. On average you can expect to pay $384. The most popular route, (New Orleans Louis Armstrong - Lambert-St Louis), can usually be booked for $232.

  • 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, January is the cheapest month in which you can book a flight from New Orleans to St. Louis (average of $106). Flying from New Orleans to St. Louis in March is currently the most expensive (average of $284). 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
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from New Orleans to St. Louis

Discover the top 5 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 December 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$72Average$184FlexibilityNo cancel feeOn-time62%
DeltaCheapest$196Average$288FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$218Average$314FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$258Average$398FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$278Average$390FlexibilityNo cancel feeOn-time63%

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