$495 Cheap Flights from Newark Liberty Intl. Airport (EWR) to Sao Luis (SLZ)

View $495 flight on Tue, Sep 9, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $495 for one-way flights and $600 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Oct 26 - Mon, Nov 3
EWR
New York
SLZ
São Luís
$600 Roundtrip, found 2 days ago
$600
Roundtrip
found 2 days ago
Select United flight, departing Sun, Oct 26 from New York to São Luís, returning Mon, Nov 3, priced at $600 found 2 days ago
United
Sun, Nov 23 - Mon, Dec 1
EWR
New York
SLZ
São Luís
$622 Roundtrip, found 2 days ago
$622
Roundtrip
found 2 days ago
Select United flight, departing Sun, Nov 23 from New York to São Luís, returning Mon, Dec 1, priced at $622 found 2 days ago
United
Sun, Nov 23 - Mon, Dec 1
EWR
New York
SLZ
São Luís
$642 Roundtrip, found 2 days ago
$642
Roundtrip
found 2 days ago
Select United flight, departing Sun, Nov 23 from New York to São Luís, returning Mon, Dec 1, priced at $642 found 2 days ago
United
Sun, Nov 23 - Mon, Dec 1
EWR
New York
SLZ
São Luís
$654 Roundtrip, found 2 days ago
$654
Roundtrip
found 2 days ago
Select United flight, departing Sun, Nov 23 from New York to São Luís, returning Mon, Dec 1, priced at $654 found 2 days ago
United
Mon, Sep 29 - Tue, Oct 7
EWR
New York
SLZ
São Luís
$684 Roundtrip, found 17 hours ago
$684
Roundtrip
found 17 hours ago
Select United flight, departing Mon, Sep 29 from New York to São Luís, returning Tue, Oct 7, priced at $684 found 17 hours ago
United
Mon, Sep 29 - Tue, Oct 7
EWR
New York
SLZ
São Luís
$704 Roundtrip, found 17 hours ago
$704
Roundtrip
found 17 hours ago
Select United flight, departing Mon, Sep 29 from New York to São Luís, returning Tue, Oct 7, priced at $704 found 17 hours ago
Air Canada
Sun, Oct 26 - Mon, Nov 3
EWR
New York
SLZ
São Luís
$827 Roundtrip, found 2 days ago
$827
Roundtrip
found 2 days ago
Select Air Canada flight, departing Sun, Oct 26 from New York to São Luís, returning Mon, Nov 3, priced at $827 found 2 days ago
Delta
Mon, Sep 29 - Tue, Oct 7
EWR
New York
SLZ
São Luís
$885 Roundtrip, found 17 hours ago
$885
Roundtrip
found 17 hours ago
Select Delta flight, departing Mon, Sep 29 from New York to São Luís, returning Tue, Oct 7, priced at $885 found 17 hours ago
LATAM Airlines Group
Fri, Apr 24 - Wed, Apr 29
EWR
New York
SLZ
São Luís
$910 Roundtrip, found 4 days ago
$910
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Fri, Apr 24 from New York to São Luís, returning Wed, Apr 29, priced at $910 found 4 days ago
JetBlue Airways
Wed, Nov 26 - Sat, Dec 6
EWR
New York
SLZ
São Luís
$919 Roundtrip, found 5 days ago
$919
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Wed, Nov 26 from New York to São Luís, returning Sat, Dec 6, priced at $919 found 5 days ago
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
$600
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 October. 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 $495 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?
Grab a cheap one-way flight from $495 or cheap return flight from $600 from Liberty Intl. Airport (EWR) to Marechal Cunha Machado Intl. Airport (SLZ) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Liberty Intl. Airport (EWR) to Marechal Cunha Machado Intl. Airport (SLZ)?
Planning your getaway for October is a good way to save, as it's the cheapest month for flights between EWR and SLZ. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Liberty Intl. Airport (EWR) to Marechal Cunha Machado Intl. Airport (SLZ)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest EWR to SLZ flight.
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.