Expect efficient security at MSY with average wait times around 15 minutes, thanks to a single checkpoint and lower passenger volumes.
$84+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — STL
Jul 8 — Jul 151
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from New Orleans to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from New Orleans Louis Armstrong to Lambert-St Louis are usually found in July or August, booked 36 days in advance, depart on a Thursday or Friday 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 July 3, 2025.
Round-trip from | $207 (FlightHub) |
|---|---|
One-way from | $84 (Mytrip) |
Popular in | January |
Cheapest in | July |
Average price | $249 |
Good round-trip deal | $440 or less |
Good one-way deal | $213 or less |
Find flight deals from New Orleans to St. Louis
Cheapest flights from New Orleans to St. LouisExplore 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 July 3, 2025.
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 July 3, 2025.
This FlightHub deal was found by Cheapflights users on 7/3. 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.
Tue 7/296:10 pmMSY - STL
1 stop16h 19mSpirit Airlines
Thu 7/3110:47 amSTL - MSY
1 stop10h 37mSpirit Airlines
Deal found 7/3![Spirit Airlines logo]()
$207
This American Airlines deal was found by Cheapflights users on 7/2. 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 11/117:28 amMSY - STL
1 stop4h 16mAmerican Airlines
Thu 11/131:55 pmSTL - MSY
1 stop6h 06mAmerican Airlines
Deal found 7/2![American Airlines logo]()
$229
This Mytrip deal was found by Cheapflights users on 7/2. 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.
Sat 8/99:00 amMSY - STL
1 stop5h 39mMultiple Airlines
Sun 8/178:00 amSTL - MSY
1 stop8h 30mMultiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$236
This Southwest deal was found by Cheapflights users on 7/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:55 pmMSY - STL
Nonstop1h 50mSouthwest
Sun 9/710:00 pmSTL - MSY
Nonstop1h 40mSouthwest
Deal found 7/1![Southwest logo]()
$250
This United Airlines deal was found by Cheapflights users on 7/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/42:16 pmMSY - STL
1 stop4h 42mUnited Airlines
Sun 9/76:15 amSTL - MSY
1 stop6h 55mUnited Airlines
Deal found 7/1![United Airlines logo]()
$260
This Justfly.com deal was found by Cheapflights users on 7/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/36:01 pmMSY - STL
1 stop15h 11mFrontier
Wed 7/97:29 pmSTL - MSY
1 stop21h 35mFrontier
Deal found 7/2![Frontier logo]()
$299
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 July 3, 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
Tue 7/29
6:10 pm-10:29 am
1 stop16h 19m
Lambert-St Louis
Thu 7/31
10:47 am-9:24 pm
1 stop10h 37m
$207
New OrleansSt. Louis
MSY - STL
MSYSTL
New Orleans Louis Armstrong
Sat 8/9
9:00 am-2:39 pm
1 stop5h 39m
Lambert-St Louis
Sun 8/17
8:00 am-4:30 pm
1 stop8h 30m
$236
New OrleansSt. Louis
MSY - STL
MSYSTL
New Orleans Louis Armstrong
Thu 9/4
6:55 pm-8:45 pm
Nonstop1h 50m
Lambert-St Louis
Sun 9/7
10:00 pm-11:40 pm
Nonstop1h 40m
$250
New OrleansSt. Louis
MSY - STL
MSYSTL
New Orleans Louis Armstrong
Fri 8/29
6:19 am-12:02 pm
1 stop5h 43m
Lambert-St Louis
Fri 8/29
4:32 pm-11:51 pm
1 stop7h 19m
$313
New OrleansSt. Louis
MSY - STL
MSYSTL
New Orleans Louis Armstrong
Thu 8/21
2:16 pm-6:58 pm
1 stop4h 42m
Lambert-St Louis
Mon 8/25
3:20 pm-11:28 pm
2 stops8h 08m
$314
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
Sun 7/13
5:40 pm-8:24 am
1 stop14h 44m
$330
New OrleansSt. Louis
MSY - STL
MSYSTL
New Orleans Louis Armstrong
Sun 8/24
1:35 pm-12:56 pm
1 stop23h 21m
$84
New OrleansSt. Louis
MSY - STL
MSYSTL
New Orleans Louis Armstrong
Tue 7/22
6:10 pm-10:29 am
1 stop16h 19m
$96
New OrleansSt. Louis
MSY - STL
MSYSTL
New Orleans Louis Armstrong
Tue 9/9
8:45 am-10:35 am
Nonstop1h 50m
$99
New OrleansSt. Louis
MSY - STL
MSYSTL
New Orleans Louis Armstrong
Mon 9/8
3:43 pm-11:07 pm
1 stop7h 24m
$104
Showing 1-10 of 13 results
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
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 June 27, 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 July 3, 2025.
It’s optimal to fly from New Orleans to St. Louis in the afternoon. By choosing this option you can save up to 31% 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 June 29, 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 July 3, 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.
Comfort
8.0
Boarding
8.2
Entertainment
7.6
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Comfort
8.0
Boarding
8.2
Entertainment
7.6
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Comfort
8.0
Boarding
8.2
Entertainment
7.6
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Comfort
8.0
Boarding
8.2
Entertainment
7.6
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Comfort
8.0
Boarding
8.2
Entertainment
7.6
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Comfort
8.0
Boarding
8.2
Entertainment
7.6
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
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.
Traveling to a place near New Orleans?
Book flights to New Orleans if you plan to visit one of these locationsO'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Festus
Chesterfield
Farmington
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for New Orleans to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
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 July 3, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$178 | Average$318 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$188 | Average$302 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$196 | Average$278 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$296 | Average$414 | FlexibilityNo cancel fee | On-time63% |