$452 Cheap Flights from Newark Liberty Intl. Airport (EWR) to Sao Luis (SLZ)

View $452 flight on Thu, Sep 4, 2025Opens in a new window

Popular airlines from Newark Liberty Intl. Airport (EWR) to Sao Luis (SLZ-Marechal Cunha Machado Intl.)

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Cheap Flights from Newark Liberty Intl. Airport to Sao Luis (EWR-SLZ)

Prices were available within the past 7 days and start at $452 for one-way flights and $598 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Sep 14 - Wed, Oct 1
EWR
New York
SLZ
São Luís
$598 Roundtrip, found 19 hours ago
$598
Roundtrip
found 19 hours ago
Select United flight, departing Sun, Sep 14 from New York to São Luís, returning Wed, Oct 1, priced at $598 found 19 hours ago
United
Sun, Sep 14 - Tue, Sep 30
EWR
New York
SLZ
São Luís
$614 Roundtrip, found 19 hours ago
$614
Roundtrip
found 19 hours ago
Select United flight, departing Sun, Sep 14 from New York to São Luís, returning Tue, Sep 30, priced at $614 found 19 hours ago
United
Mon, Sep 15 - Wed, Oct 1
EWR
New York
SLZ
São Luís
$619 Roundtrip, found 19 hours ago
$619
Roundtrip
found 19 hours ago
Select United flight, departing Mon, Sep 15 from New York to São Luís, returning Wed, Oct 1, priced at $619 found 19 hours ago
United
Mon, Sep 15 - Tue, Sep 30
EWR
New York
SLZ
São Luís
$635 Roundtrip, found 19 hours ago
$635
Roundtrip
found 19 hours ago
Select United flight, departing Mon, Sep 15 from New York to São Luís, returning Tue, Sep 30, priced at $635 found 19 hours ago
United
Tue, Sep 16 - Wed, Oct 1
EWR
New York
SLZ
São Luís
$638 Roundtrip, found 19 hours ago
$638
Roundtrip
found 19 hours ago
Select United flight, departing Tue, Sep 16 from New York to São Luís, returning Wed, Oct 1, priced at $638 found 19 hours ago
United
Fri, Sep 12 - Wed, Oct 1
EWR
New York
SLZ
São Luís
$643 Roundtrip, found 19 hours ago
$643
Roundtrip
found 19 hours ago
Select United flight, departing Fri, Sep 12 from New York to São Luís, returning Wed, Oct 1, priced at $643 found 19 hours ago
Delta
Sat, Sep 27 - Sun, Oct 12
EWR
New York
SLZ
São Luís
$953 Roundtrip, found 19 hours ago
$953
Roundtrip
found 19 hours ago
Select Delta flight, departing Sat, Sep 27 from New York to São Luís, returning Sun, Oct 12, priced at $953 found 19 hours ago
LATAM Airlines Group
Tue, Dec 2 - Wed, Dec 17
EWR
New York
SLZ
São Luís
$1,049 Roundtrip, found 1 day ago
$1,049
Roundtrip
found 1 day ago
Select LATAM Airlines Group flight, departing Tue, Dec 2 from New York to São Luís, returning Wed, Dec 17, priced at $1,049 found 1 day ago
Azul
Wed, Sep 3 - Fri, Sep 5
EWR
New York
SLZ
São Luís
$1,338 Roundtrip, found 2 days ago
$1,338
Roundtrip
found 2 days ago
Select Azul flight, departing Wed, Sep 3 from New York to São Luís, returning Fri, Sep 5, priced at $1,338 found 2 days ago
American Airlines
Wed, May 13 - Sat, May 16
EWR
New York
SLZ
São Luís
$1,453 Roundtrip, found 5 days ago
$1,453
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, May 13 from New York to São Luís, returning Sat, May 16, priced at $1,453 found 5 days ago

Alternative airports near São Luís

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

Select flight to Marechal Cunha Machado Intl. SLZ. Cheapest and Closest option available. Average driving time to city center is 12 minutes. Flights from $2,018
SLZ
Marechal Cunha Machado Intl.
CheapestClosest
Average driving time to city center12 min
Flights from $2,018
Flights from Newark Liberty Intl. Airport (EWR) to Sao Luis (SLZ)
Origin airport
Newark Liberty Intl. Airport
Destination airport
Marechal Cunha Machado Intl.
Airlines serving
Copa, Delta, GOL Linhas Aereas S.A., LATAM Airlines Group
Roundtrip price
$598
Distance
3535 mi

Newark Liberty Intl. Airport to Sao Luis Flights

The cheapest times to fly from Newark Liberty Intl. Airport 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 Newark Liberty Intl. Airport to Sao Luis are during the month of September. You can find some of the cheapest flights from Newark Liberty Intl. Airport to Sao Luis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Newark Liberty Intl. Airport to Sao Luis

Sunday is one of the best days to book for cheap flights from Newark Liberty Intl. Airport 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 Newark Liberty Intl. Airport 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 Newark Liberty Intl. Airport to Sao Luis in 2025. You can also book with separate airlines for your outbound and return journeys, from $452 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 Newark Liberty Intl. Airport 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 Newark Liberty Intl. Airport 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.

 

Frequently asked questions

How much does a flight from Liberty Intl. Airport (EWR) to Marechal Cunha Machado Intl. Airport (SLZ) cost?
Discover the latest flight deals from EWR to SLZ by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from EWR to SLZ?
The cheapest flights from EWR to SLZ are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from EWR to SLZ?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from EWR to SLZ. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Liberty Intl. Airport (EWR) to Marechal Cunha Machado Intl. Airport (SLZ)?
You'll have to catch a flight with a layover if you're traveling from Liberty Intl. Airport (EWR) to Marechal Cunha Machado Intl. Airport (SLZ). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from EWR to SLZ?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Liberty Intl. Airport (EWR) to Marechal Cunha Machado Intl. Airport (SLZ)?
To touch down at Marechal Cunha Machado Intl. Airport (SLZ) without delays, pick a flight that leaves Liberty Intl. Airport (EWR) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Liberty Intl. Airport (EWR) to Marechal Cunha Machado Intl. Airport (SLZ) last-minute?
Last-minute fares from EWR to SLZ are usually more expensive. To secure the lowest rates, start searching for flights early. That said, if your travel plans are flexible, you may find a cheap fare right before your trip.
Is it cheaper to book an EWR to SLZ flight and hotel package?
You'll typically save money by securing an EWR to SLZ flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've chosen your ideal flights and accommodations, consider other add-ons like car rentals, tours and activities.
Can I cancel or change the date of my flight from Liberty Intl. Airport (EWR) to Marechal Cunha Machado Intl. Airport (SLZ)?
Usually, it's possible to cancel or reschedule your EWR to SLZ flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed 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.