$82 Cheap Flights from St. Louis (STL) to New Orleans (MSY)

View $82 flight on Thu, Oct 30, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY)

Cheap Flights from St. Louis to New Orleans (STL-MSY)

Prices were available within the past 7 days and start at $82 for one-way flights and $163 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Oct 23 - Sat, Oct 25
STL
St. Louis
MSY
New Orleans
$163 Roundtrip, found 4 hours ago
$163
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Thu, Oct 23 from St. Louis to New Orleans, returning Sat, Oct 25, priced at $163 found 4 hours ago
Spirit Airlines
Thu, Oct 16 - Sat, Oct 18
STL
St. Louis
MSY
New Orleans
$171 Roundtrip, found 5 hours ago
$171
Roundtrip
found 5 hours ago
Select Spirit Airlines flight, departing Thu, Oct 16 from St. Louis to New Orleans, returning Sat, Oct 18, priced at $171 found 5 hours ago
Spirit Airlines
Thu, Oct 23 - Sat, Oct 25
STL
St. Louis
MSY
New Orleans
$173 Roundtrip, found 4 hours ago
$173
Roundtrip
found 4 hours ago
Select Spirit Airlines flight, departing Thu, Oct 23 from St. Louis to New Orleans, returning Sat, Oct 25, priced at $173 found 4 hours ago
Frontier Airlines
Thu, Oct 30 - Thu, Nov 6
STL
St. Louis
MSY
New Orleans
$175 Roundtrip, found 1 day ago
$175
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Oct 30 from St. Louis to New Orleans, returning Thu, Nov 6, priced at $175 found 1 day ago
Frontier Airlines
Thu, Nov 6 - Tue, Nov 11
STL
St. Louis
MSY
New Orleans
$176 Roundtrip, found 1 day ago
$176
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Nov 6 from St. Louis to New Orleans, returning Tue, Nov 11, priced at $176 found 1 day ago
Frontier Airlines
Thu, Nov 13 - Sun, Nov 16
STL
St. Louis
MSY
New Orleans
$180 Roundtrip, just found
$180
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Nov 13 from St. Louis to New Orleans, returning Sun, Nov 16, priced at $180 just found
Spirit Airlines
Tue, Oct 21 - Sat, Oct 25
STL
St. Louis
MSY
New Orleans
$181 Roundtrip, found 3 days ago
$181
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Tue, Oct 21 from St. Louis to New Orleans, returning Sat, Oct 25, priced at $181 found 3 days ago
Southwest Airlines
Tue, Oct 7 - Sat, Oct 11
STL
St. Louis
MSY
New Orleans
$187 Roundtrip, found 1 day ago
$187
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Tue, Oct 7 from St. Louis to New Orleans, returning Sat, Oct 11, priced at $187 found 1 day ago
United
Tue, Oct 7 - Sat, Oct 11
STL
St. Louis
MSY
New Orleans
$192 Roundtrip, found 1 day ago
$192
Roundtrip
found 1 day ago
Select United flight, departing Tue, Oct 7 from St. Louis to New Orleans, returning Sat, Oct 11, priced at $192 found 1 day ago
Delta
Tue, Oct 7 - Wed, Oct 8
STL
St. Louis
MSY
New Orleans
$199 Roundtrip, found 1 day ago
$199
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Oct 7 from St. Louis to New Orleans, returning Wed, Oct 8, priced at $199 found 1 day ago

Find the cheapest month to fly from St. Louis (STL) to New Orleans (MSY)

September is typically the cheapest month to fly

From $135 - $470 per traveler.

Graph displaying average flight prices per month

Alternative airports near New Orleans

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Louis Armstrong New Orleans Intl. MSY. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $406
MSY
Louis Armstrong New Orleans Intl.
Cheapest
Average driving time to city center20 min
Flights from $406
Flights from St. Louis (STL) to New Orleans (MSY)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Louis Armstrong New Orleans Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$162
Distance
605 mi
Average flight time
2 hours 21 mins

St. Louis to New Orleans Flights

The cheapest times to fly from St. Louis to New Orleans

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to New Orleans are during the month of October. You can find some of the cheapest flights from St. Louis to New Orleans with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to New Orleans

Sunday is one of the best days to book for cheap flights from St. Louis to New Orleans: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to New Orleans

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to New Orleans in 2025. You can also book with separate airlines for your outbound and return journeys, from $82 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to New Orleans flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to New Orleans airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY) cost?
Snag a cheap one-way flight from $82 or cheap return flight from $163 from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY)?
October is the most affordable month to fly from STL to MSY. Avoiding peak travel times is often the key to better flight prices.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY)?
When departing from Lambert-St. Louis Intl. Airport (STL), you can get on a direct flight to Louis Armstrong New Orleans Intl. Airport (MSY) with Southwest Airlines.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest STL to MSY flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY)?
With, on average, 2 nonstop flights that operate from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY) each day, you'll be soaring through the skies in no time.
What are the most popular departure times for flights from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY)?
The 9 AM departures from STL to MSY are the top choice for many travelers. Prices can be higher for these popular slots. If you want to save money, pick a less crowded time to fly.
What day of the week has the most flights from STL to MSY?
Friday offers the most flights from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY). Consider leaving on this day and you'll have the best chance of finding a departure that works with your plans.
What is the earliest flight from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY)?
The earliest flight leaving from Lambert-St. Louis Intl. Airport (STL) is at around 8:25AM UTC-6. Board this plane and you'll arrive at Louis Armstrong New Orleans Intl. Airport (MSY) at approximately 10:15AM UTC-6. The overall travel time is 1h 50m.
How long does it take to fly from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY)?
Flights from STL to MSY have an average travel time of 1 hour and 50 minutes. The total distance between these two airports is 610 mi.
What airline has the least delays from STL to MSY?
Southwest Airlines has the strongest track record for on-time direct flights from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY), with an on-time score of 86%. Use the Expedia App to check your journey status before you jet off and get immediate updates about any trip changes.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY)?
To touch down at Louis Armstrong New Orleans Intl. Airport (MSY) on time, pick a flight that leaves Lambert-St. Louis Intl. Airport (STL) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for New Orleans from Lambert-St. Louis Intl. Airport (STL)?
Louis Armstrong New Orleans Intl. Airport (MSY) is the only airport in New Orleans with direct flights from Lambert-St. Louis Intl. Airport (STL). Consider the options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY) last-minute?
Booking your flight from STL to MSY right before your journey is usually more expensive. However, if you're flexible with your departure dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a STL to MSY flight and hotel package?
Opting for a STL to MSY flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our extensive range of hotels and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport (MSY)?
It's generally possible to cancel or reschedule your STL to MSY flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.