$96 Cheap Flights from Sao Luis (SLZ) to Porto Alegre (POA)

View $96 flight on Fri, Dec 26, 2025Opens in a new window

Popular airlines from Sao Luis (SLZ-Marechal Cunha Machado Intl.) to Salgado Filho Intl. Airport (POA)

Cheap Flights from Sao Luis to Porto Alegre (SLZ-POA)

Prices were available within the past 7 days and start at $96 for one-way flights and $205 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Azul
Tue, Mar 10 - Tue, Mar 31
SLZ
São Luís
POA
Porto Alegre
$205 Roundtrip, found 3 days ago
$205
Roundtrip
found 3 days ago
Select Azul flight, departing Tue, Mar 10 from São Luís to Porto Alegre, returning Tue, Mar 31, priced at $205 found 3 days ago
Azul
Wed, Mar 11 - Wed, Mar 18
SLZ
São Luís
POA
Porto Alegre
$221 Roundtrip, found 15 hours ago
$221
Roundtrip
found 15 hours ago
Select Azul flight, departing Wed, Mar 11 from São Luís to Porto Alegre, returning Wed, Mar 18, priced at $221 found 15 hours ago
Azul
Thu, Feb 5 - Wed, Feb 25
SLZ
São Luís
POA
Porto Alegre
$223 Roundtrip, found 1 day ago
$223
Roundtrip
found 1 day ago
Select Azul flight, departing Thu, Feb 5 from São Luís to Porto Alegre, returning Wed, Feb 25, priced at $223 found 1 day ago
Azul
Tue, Mar 10 - Tue, Mar 31
SLZ
São Luís
POA
Porto Alegre
$223 Roundtrip, found 3 days ago
$223
Roundtrip
found 3 days ago
Select Azul flight, departing Tue, Mar 10 from São Luís to Porto Alegre, returning Tue, Mar 31, priced at $223 found 3 days ago
Azul
Tue, Mar 10 - Tue, Mar 31
SLZ
São Luís
POA
Porto Alegre
$248 Roundtrip, found 3 days ago
$248
Roundtrip
found 3 days ago
Select Azul flight, departing Tue, Mar 10 from São Luís to Porto Alegre, returning Tue, Mar 31, priced at $248 found 3 days ago
GOL Linhas Aereas S.A.
Tue, Mar 10 - Tue, Mar 31
SLZ
São Luís
POA
Porto Alegre
$253 Roundtrip, found 3 days ago
$253
Roundtrip
found 3 days ago
Select GOL Linhas Aereas S.A. flight, departing Tue, Mar 10 from São Luís to Porto Alegre, returning Tue, Mar 31, priced at $253 found 3 days ago
GOL Linhas Aereas S.A.
Fri, Nov 28 - Thu, Dec 4
SLZ
São Luís
POA
Porto Alegre
$254 Roundtrip, found 2 days ago
$254
Roundtrip
found 2 days ago
Select GOL Linhas Aereas S.A. flight, departing Fri, Nov 28 from São Luís to Porto Alegre, returning Thu, Dec 4, priced at $254 found 2 days ago
Azul
Thu, Feb 5 - Wed, Feb 25
SLZ
São Luís
POA
Porto Alegre
$257 Roundtrip, found 1 day ago
$257
Roundtrip
found 1 day ago
Select Azul flight, departing Thu, Feb 5 from São Luís to Porto Alegre, returning Wed, Feb 25, priced at $257 found 1 day ago
Azul
Wed, Mar 11 - Wed, Mar 18
SLZ
São Luís
POA
Porto Alegre
$261 Roundtrip, found 15 hours ago
$261
Roundtrip
found 15 hours ago
Select Azul flight, departing Wed, Mar 11 from São Luís to Porto Alegre, returning Wed, Mar 18, priced at $261 found 15 hours ago
LATAM Airlines Group
Wed, Mar 11 - Wed, Mar 18
SLZ
São Luís
POA
Porto Alegre
$298 Roundtrip, found 15 hours ago
$298
Roundtrip
found 15 hours ago
Select LATAM Airlines Group flight, departing Wed, Mar 11 from São Luís to Porto Alegre, returning Wed, Mar 18, priced at $298 found 15 hours ago
Flights from Sao Luis (SLZ) to Porto Alegre (POA)
Origin airport
Marechal Cunha Machado Intl.
Destination airport
Salgado Filho Intl.
Airlines serving
Azul, GOL Linhas Aereas S.A., LATAM Airlines Group
Roundtrip price
$204
Distance
1947 mi

Sao Luis to Porto Alegre Flights

The cheapest times to fly from Sao Luis to Porto Alegre

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

 

The best time to book a flight from Sao Luis to Porto Alegre

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

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 Sao Luis to Porto Alegre in 2025. You can also book with separate airlines for your outbound and return journeys, from $96 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 Sao Luis to Porto Alegre 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 Sao Luis to Porto Alegre 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 Marechal Cunha Machado Intl. Airport (SLZ) to Salgado Filho Intl. Airport (POA) cost?
Snag a cheap one-way flight from $96 or cheap return flight from $205 from Marechal Cunha Machado Intl. Airport (SLZ) to Salgado Filho Intl. Airport (POA) 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 Marechal Cunha Machado Intl. Airport (SLZ) to Salgado Filho Intl. Airport (POA)?
Traveling in March may help you find better deals, as it's the cheapest month for flights between SLZ and POA. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Marechal Cunha Machado Intl. Airport (SLZ) to Salgado Filho Intl. Airport (POA)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from SLZ to POA. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Marechal Cunha Machado Intl. Airport (SLZ) to Salgado Filho Intl. Airport (POA)?
Nonstop flights from Marechal Cunha Machado Intl. Airport (SLZ) to Salgado Filho Intl. Airport (POA) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SLZ to POA?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary 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 Marechal Cunha Machado Intl. Airport (SLZ) to Salgado Filho Intl. Airport (POA)?
To arrive at Salgado Filho Intl. Airport (POA) without delays, choose a flight that leaves from Marechal Cunha Machado Intl. Airport (SLZ) before 3 PM. The chance 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 Marechal Cunha Machado Intl. Airport (SLZ) to Salgado Filho Intl. Airport (POA) last-minute?
Waiting until just before your trip to book a ticket from SLZ to POA often results in higher prices. While you may come across some last-minute discounts, they aren't always guaranteed. Be flexible with your travel plans for a better chance of getting a bargain.
Is it cheaper to book a SLZ to POA flight and hotel package?
You'll generally save money by securing a SLZ to POA 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 it all in one convenient place. Once you've selected your ideal accommodations and flights, consider adding extras including activities, tours and car rentals.
Can I cancel or change the date of my flight from Marechal Cunha Machado Intl. Airport (SLZ) to Salgado Filho Intl. Airport (POA)?
In most cases, you can modify or cancel your SLZ to POA flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you'd like more information, head to our Customer Service portal.

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*Available to One Key members.