$470 Cheap Flights from Raleigh (RDU) to Sao Luis (SLZ)

View $470 flight on Wed, May 27, 2026Opens in a new window

Popular airlines from Raleigh-Durham International Airport (RDU) to Sao Luis (SLZ-Marechal Cunha Machado Intl.)

Cheap Flights from Raleigh to Sao Luis (RDU-SLZ)

Prices were available within the past 7 days and start at $470 for one-way flights and $980 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Thu, Nov 13 - Tue, Nov 18
RDU
Raleigh
SLZ
São Luís
$980 Roundtrip, found 4 days ago
$980
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Thu, Nov 13 from Raleigh to São Luís, returning Tue, Nov 18, priced at $980 found 4 days ago
LATAM Airlines Group
Thu, Nov 13 - Tue, Nov 18
RDU
Raleigh
SLZ
São Luís
$985 Roundtrip, found 4 days ago
$985
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Thu, Nov 13 from Raleigh to São Luís, returning Tue, Nov 18, priced at $985 found 4 days ago
LATAM Airlines Group
Thu, Dec 4 - Thu, Dec 11
RDU
Raleigh
SLZ
São Luís
$985 Roundtrip, found 6 days ago
$985
Roundtrip
found 6 days ago
Select LATAM Airlines Group flight, departing Thu, Dec 4 from Raleigh to São Luís, returning Thu, Dec 11, priced at $985 found 6 days ago
JetBlue Airways
Thu, Nov 13 - Tue, Nov 18
RDU
Raleigh
SLZ
São Luís
$987 Roundtrip, found 4 days ago
$987
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Thu, Nov 13 from Raleigh to São Luís, returning Tue, Nov 18, priced at $987 found 4 days ago
JetBlue Airways
Thu, Nov 13 - Tue, Nov 18
RDU
Raleigh
SLZ
São Luís
$988 Roundtrip, found 4 days ago
$988
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Thu, Nov 13 from Raleigh to São Luís, returning Tue, Nov 18, priced at $988 found 4 days ago
JetBlue Airways
Thu, Nov 13 - Tue, Nov 18
RDU
Raleigh
SLZ
São Luís
$989 Roundtrip, found 4 days ago
$989
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Thu, Nov 13 from Raleigh to São Luís, returning Tue, Nov 18, priced at $989 found 4 days ago
LATAM Airlines Group
Thu, Nov 13 - Tue, Nov 18
RDU
Raleigh
SLZ
São Luís
$992 Roundtrip, found 4 days ago
$992
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Thu, Nov 13 from Raleigh to São Luís, returning Tue, Nov 18, priced at $992 found 4 days ago
LATAM Airlines Group
Thu, Dec 4 - Thu, Dec 11
RDU
Raleigh
SLZ
São Luís
$992 Roundtrip, found 6 days ago
$992
Roundtrip
found 6 days ago
Select LATAM Airlines Group flight, departing Thu, Dec 4 from Raleigh to São Luís, returning Thu, Dec 11, priced at $992 found 6 days ago
LATAM Airlines Group
Thu, Dec 4 - Thu, Dec 11
RDU
Raleigh
SLZ
São Luís
$993 Roundtrip, found 6 days ago
$993
Roundtrip
found 6 days ago
Select LATAM Airlines Group flight, departing Thu, Dec 4 from Raleigh to São Luís, returning Thu, Dec 11, priced at $993 found 6 days ago
GOL Linhas Aereas S.A.
Thu, Dec 4 - Thu, Dec 11
RDU
Raleigh
SLZ
São Luís
$1,079 Roundtrip, found 6 days ago
$1,079
Roundtrip
found 6 days ago
Select GOL Linhas Aereas S.A. flight, departing Thu, Dec 4 from Raleigh to São Luís, returning Thu, Dec 11, priced at $1,079 found 6 days ago

Frequently asked questions

How much does a flight from Raleigh - Durham Intl. Airport (RDU) to Marechal Cunha Machado Intl. Airport (SLZ) cost?
Lock in a cheap one-way flight from $470 or cheap return flight from $980 from Raleigh - Durham Intl. Airport (RDU) to Marechal Cunha Machado Intl. Airport (SLZ) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Raleigh - Durham Intl. Airport (RDU) to Marechal Cunha Machado Intl. Airport (SLZ)?
Traveling in November is a great way to save, as it's the cheapest month for flights between RDU and SLZ. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Raleigh - Durham Intl. Airport (RDU) to Marechal Cunha Machado Intl. Airport (SLZ)?
To find the cheapest airline flying from RDU to SLZ, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Raleigh - Durham Intl. Airport (RDU) to Marechal Cunha Machado Intl. Airport (SLZ)?
There aren't any daily nonstop flights departing from Raleigh - Durham Intl. Airport (RDU) to Marechal Cunha Machado Intl. Airport (SLZ). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from RDU to SLZ?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can change based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Raleigh - Durham Intl. Airport (RDU) to Marechal Cunha Machado Intl. Airport (SLZ)?
To arrive at Marechal Cunha Machado Intl. Airport (SLZ) on schedule, opt for a flight that leaves Raleigh - Durham Intl. Airport (RDU) before 3 PM. The likelihood 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.
Is it cheaper to buy a plane ticket from Raleigh - Durham Intl. Airport (RDU) to Marechal Cunha Machado Intl. Airport (SLZ) last-minute?
Last-minute bookings from RDU to SLZ are usually more expensive. To secure the best rates, start searching for flights well in advance. That said, if you're flexible with your travel plans, it's possible to land a cheap fare just before your departure.
Is it cheaper to book a RDU to SLZ flight and hotel package?
You'll generally save money by securing a RDU to SLZ flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After choosing your preferred flights and accommodations, consider adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Raleigh - Durham Intl. Airport (RDU) to Marechal Cunha Machado Intl. Airport (SLZ)?
If you reserved your RDU to SLZ flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

Travel information

Origin airport
Raleigh - Durham Intl.
Destination airport
Marechal Cunha Machado Intl.
Roundtrip price
$979
Distance
3467 mi

Book with confidence

Raleigh to Sao Luis Flights

The cheapest times to fly from Raleigh to Sao Luis

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 Raleigh to Sao Luis are during the month of November. You can find some of the cheapest flights from Raleigh to Sao Luis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Raleigh to Sao Luis

Sunday is one of the best days to book for cheap flights from Raleigh to Sao Luis: 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 Raleigh to Sao Luis

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 Raleigh to Sao Luis in 2025. You can also book with separate airlines for your outbound and return journeys, from $470 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 Raleigh to Sao Luis 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 Raleigh to Sao Luis 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.

 

Raleigh to Sao Luis Flights

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*Available to One Key members.