CA $328 Cheap Flights from St. Louis (STL) to New Orleans (MSY)

View CA $328 flight on Sat, Aug. 16, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at CA $328 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

September is typically the cheapest month to fly

From CA $187 - CA $609 per traveller.

Graph displaying average flight prices per month

Flight from St. Louis to New Orleans (STL - MSY) route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
Louis Armstrong New Orleans Intl.
Distance
968 km
Average flight time
2 hours 59 mins

St. Louis to New Orleans Flights

The easy way to book your flights from St. Louis to New Orleans 

With Expedia, it’s simple to find and book flights to New Orleans from St. Louis whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Louis Armstrong New Orleans Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from St. Louis to New Orleans today, tomorrow, or this week.  

 

Save dollars with cheap flights from Lambert-St. Louis Intl., STL to Louis Armstrong New Orleans Intl., MSY 

Sort your search results by price to find great deals on your flight from St. Louis to New Orleans—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to New Orleans from St. Louis currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to New Orleans  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to New Orleans from St. Louis 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to New Orleans with Expedia today.

Frequently asked questions

How much is a flight from Lambert-St. Louis Intl. Airport (STL) to Louis Armstrong New Orleans Intl. Airport?
Based on airfares available within the last 7 days on Expedia for flights departing within the next year, round-trip flights between STL and Louis Armstrong New Orleans Intl. Airport (MSY) start from . Book today to secure the best price for your trip. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Lambert-St. Louis Intl. Airport (STL) to MSY?
Most flights can be conveniently cancelled online, but whether or not you incur a fee all comes down to your airline. If you do need to cancel your break, follow the instructions in the Customer Service Portal.
How do I find cheap flights from STL to Louis Armstrong New Orleans Intl. Airport that have flexible change policies?
Use our "No change fees" filter to find flexible ticketing options for your flight from Lambert Field to Louis Armstrong New Orleans Intl. Airport. This allows you to snag a great deal in advance and still have the freedom to make changes without any additional fees. You'll just need to pay the fare difference, if applicable.
How many hours is the flight from STL to Louis Armstrong New Orleans Intl. Airport (MSY)?
The flight time from STL to Louis Armstrong New Orleans Intl. Airport is only 5 hours and 10 minutes. If you're lucky, you might just finish a whole movie before you land!
How far is the flight from Lambert Field to Louis Armstrong New Orleans Intl. Airport?
The distance from Lambert-St. Louis Intl. Airport (STL) (STL) to MSY (MSY) is just 970 kilometres. You'll be disembarking the plane and grabbing your bags from the carousel in the blink of an eye.
Which airlines fly direct from STL to Louis Armstrong New Orleans Intl. Airport?
Offering 73 flights monthly, Southwest Airlines (WN) is a popular choice when flying straight from Lambert Field to Louis Armstrong New Orleans Intl. Airport (MSY).
Are STL to MSY flight tickets cheaper when they're purchased at the last minute?
Flight prices from STL to Louis Armstrong New Orleans Intl. Airport are available up to 12 months before departure on Expedia. And although you may pick up a great last-minute deal, it's not something you should count on. Also, booking your flights well in advance means you'll have more options — and you can avoid getting caught in the dreaded middle seat! We're constantly updating our fares to make sure you get the biggest bargains, so check back often for all the latest specials.

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