Cheap Flights from New Orleans to St Louis

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Compare New Orleans Louis Armstrong to St Louis flight deals

Find the cheapest month or even day of the year to fly to St Louis

Book the best St Louis fare with no extra fees

Flight deals from New Orleans Louis Armstrong to St Louis

Looking for a cheap last-minute deal or the best return flight from New Orleans Louis Armstrong to St Louis? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from New Orleans Louis Armstrong to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like New Orleans Louis Armstrong to St Louis flights are currently cheapest in June.

Direct flights from New Orleans Louis Armstrong to St Louis

New Orleans Louis Armstrong to St Louis: Alternative routes

Compare routes from New Orleans Louis Armstrong to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

New Orleans to St Louis: Flight information

The things to know before you go.
Cheapest flight found$464
Cheapest month to flyJune
Average flight time1 hr, 49 mins
Most popular airlineSouthwest Airlines
Average flights per week17

Finding cheap flights from New Orleans Louis Armstrong to St Louis: Frequently asked questions

The best price we found for a return flight from New Orleans Louis Armstrong to St Louis is $464. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 49 minutes is the average flight time from New Orleans Louis Armstrong to St Louis.
Southwest Airlines flies direct from New Orleans Louis Armstrong to St Louis.
As of April 2025, there are 17 flights per week flying from New Orleans Louis Armstrong to St Louis.
The cheapest month to fly from New Orleans Louis Armstrong to St Louis is usually April 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from New Orleans Louis Armstrong Airport to St Louis Airport on Friday, 13 June 2025.
Yes – the average flight time is 1 hour and 49 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Spirit Airlines and Southwest Airlines offer the cheapest flight tickets to St Louis.

Travelling from Louis Armstrong New Orleans International Airport (MSY) to Lambert-St. Louis International Airport (STL): what you need to know

  • A direct flight from Louis Armstrong New Orleans International Airport to Lambert-St. Louis International Airport takes an average of 1 hour 46 minutes. St Louis's timezone is UTC-5 — the same as New Orleans.

  • Every week, there are 10 flights from Louis Armstrong New Orleans International Airport to Lambert-St. Louis International Airport. The earliest departure from MSY to STL is at 05:10 and the latest is at 22:40.

  • Hopping on a plane during a peak month like October? Popular periods (like summer, Thanksgiving, Christmas and spring break) can easily add another hour at check-in and security. Be extra safe and arrive up to four hours before an international flight and two hours before a domestic departure.

  • To break up your flight from Louis Armstrong New Orleans International Airport to Lambert-St. Louis International Airport, consider adding a stopover. Simply deselect 'Direct flights only' and find a destination that catches your eye. The top stopovers on the MSY - STL route include:

    • Chicago Midway International Airport

    • George Bush Intercontinental Airport

    • Hartsfield-Jackson Atlanta International Airport

  • For a flight within United States, you don't need a visa or even a passport. However, you'll have to show some form of identification, such as an ID card or driver's license. Once you've found your cheap ticket from MSY to STL, make sure your ID is up to date before you jet off.

How to find the cheapest flights from Louis Armstrong New Orleans International Airport (MSY) to Lambert-St. Louis International Airport (STL)

  • The best price we've seen for a one-way ticket from Louis Armstrong New Orleans International Airport to Lambert-St. Louis International Airport is $170. The cheapest price for a return flight is $464. Bear in mind that fares could change due to demand at the time of booking.

  • Book 9 months before you travel. After crunching the numbers on our calendar, this is how far you should book ahead to find cheap flight tickets from MSY to STL.

  • The cheapest month for tickets from Louis Armstrong New Orleans International Airport to Lambert-St. Louis International Airport is May. Use the 'Whole month' tool to see the lowest airfares if you have a flexible schedule.

  • Snapping up a cheap ticket from MSY to STL couldn't be easier with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know when the price has dropped.

  • Use filters to tailor your flights from Louis Armstrong New Orleans International Airport to Lambert-St. Louis International Airport. Simply select your preferred departure and arrival times, airlines and number of stops. Or sort your results by 'Cheapest' to get the best deals.

Handy information about Louis Armstrong New Orleans International Airport (MSY)

Arriving at Lambert-St. Louis International Airport (STL)

Getting from Lambert-St. Louis International Airport (STL) to central St Louis

  • From Lambert-St. Louis International Airport, St Louis is approximately 26 kilometres away. It takes around 21 minutes to reach the centre driving.

  • Travelling to the centre on public transport will take you roughly 36 minutes.

When to fly to Lambert-St. Louis International Airport (STL)

  • July is the busiest month for flights from Louis Armstrong New Orleans International Airport to Lambert-St. Louis International Airport. To avoid the crowds, go to St Louis in April.

  • Before locking in your flight from Louis Armstrong New Orleans International Airport to Lambert-St. Louis International Airport, think about the kind of weather you enjoy. July is the warmest month in St Louis, with temperatures ranging from 17ºC to 33ºC.

  • January sees average temperatures of between -8ºC and 7ºC. Look for cheap flight tickets from MSY to STL sometime then if you'd rather travel in cooler conditions.

More about St Louis

  • After locking in your flights from MSY to STL, you'll need to find a place to stay in St Louis. Make one of these accommodation options your base for exploring this popular destination:

  • The Gateway Arch and Forest Park are just two of the popular attractions to add to your St Louis must-do list. Keep the sightseeing going at St. Louis Zoo.

Complete your St Louis trip with hotels and a car rental

  • You've locked in your cheap ticket to Lambert-St. Louis International Airport — now it's time to find a place to stay, and perhaps even your own set of wheels. We've compared prices across hundreds of companies to bring you the best hotels and car rental deals in St Louis.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.