$367 Cheap Flights from New Orleans (MSY) to Castries (SLU)

View $367 flight on Fri, Jan 23, 2026Opens in a new window

Popular airlines from Louis Armstrong New Orleans Intl. Airport (MSY) to George F. L. Charles Airport (SLU)

Cheap Flights from New Orleans to Castries (MSY-SLU)

Prices were available within the past 7 days and start at $367 for one-way flights and $851 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Mon, Dec 15 - Fri, Dec 19
MSY
New Orleans
SLU
Castries
$851 Roundtrip, found 5 days ago
$851
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Mon, Dec 15 from New Orleans to Castries, returning Fri, Dec 19, priced at $851 found 5 days ago

Find the cheapest month to fly from New Orleans (MSY) to Castries (SLU)

September is typically the cheapest month to fly

From $468 - $758 per traveler.

Alternative airports near Castries

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

Select flight to Hewanorra Intl. UVF. Cheapest option available. Average driving time to city center is 53 minutes. Flights from $555
UVF
Hewanorra Intl.
Cheapest
Average driving time to city center53 min
Flights from $555
Flights from New Orleans (MSY) to Castries (SLU)
Origin airport
Louis Armstrong New Orleans Intl.
Destination airport
George F. L. Charles
Roundtrip price
$850
Distance
2164 mi

New Orleans to Castries Flights

The cheapest times to fly from New Orleans to Castries

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 New Orleans to Castries are during the month of December. You can find some of the cheapest flights from New Orleans to Castries with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from New Orleans to Castries

Sunday is one of the best days to book for cheap flights from New Orleans to Castries: 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 New Orleans to Castries

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 New Orleans to Castries in 2025. You can also book with separate airlines for your outbound and return journeys, from $367 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 New Orleans to Castries 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 New Orleans to Castries 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 Louis Armstrong New Orleans Intl. Airport (MSY) to George F. L. Charles Airport (SLU) cost?
Grab a cheap one-way flight from $367 or cheap return flight from $851 from Louis Armstrong New Orleans Intl. Airport (MSY) to George F. L. Charles Airport (SLU) 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 Louis Armstrong New Orleans Intl. Airport (MSY) to George F. L. Charles Airport (SLU)?
Planning your trip for December may help you find better deals, as it's the cheapest month for flights between MSY and SLU. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Louis Armstrong New Orleans Intl. Airport (MSY) to George F. L. Charles Airport (SLU)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest MSY to SLU flight.
How many flights per day from Louis Armstrong New Orleans Intl. Airport (MSY) to George F. L. Charles Airport (SLU)?
You'll have to hop on a flight with a layover when traveling from Louis Armstrong New Orleans Intl. Airport (MSY) to George F. L. Charles Airport (SLU). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from MSY to SLU?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Louis Armstrong New Orleans Intl. Airport (MSY) to George F. L. Charles Airport (SLU)?
To avoid potential delays on the Louis Armstrong New Orleans Intl. Airport (MSY) to George F. L. Charles Airport (SLU) route, aim to fly before 3 PM. Flights after this time have a 22% higher chance of cancellation.**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.
Is it cheaper to buy a plane ticket from Louis Armstrong New Orleans Intl. Airport (MSY) to George F. L. Charles Airport (SLU) last-minute?
Last-minute fares from MSY to SLU are generally more expensive. To secure the cheapest rates, start searching for flights as early as possible. That being said, if your travel plans are flexible, it's possible to find a cheap ticket right before your trip.
Is it cheaper to book a MSY to SLU flight and hotel package?
Compared with arranging hotels and flights separately, booking a MSY to SLU flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place will take the hassle out of travel planning. Simply secure your flights and choose from our wide range of hotels, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Louis Armstrong New Orleans Intl. Airport (MSY) to George F. L. Charles Airport (SLU)?
It's usually possible to cancel or reschedule your MSY to SLU flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to 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.