$345 Cheap Flights from Iguazu (IGR) to Sao Luis (SLZ)

View $345 flight on Thu, Oct 9, 2025Opens in a new window

Popular airlines from Iguazu (IGR-Cataratas del Iguazu Intl.) to Sao Luis (SLZ-Marechal Cunha Machado Intl.)

Cheap Flights from Iguazu to Sao Luis (IGR-SLZ)

Prices were available within the past 7 days and start at $345 for one-way flights and $906 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aerolineas Argentinas
Sun, Oct 19 - Sun, Oct 26
IGR
Puerto Iguazú
SLZ
São Luís
$906 Roundtrip, found 1 day ago
$906
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sun, Oct 19 from Puerto Iguazú to São Luís, returning Sun, Oct 26, priced at $906 found 1 day ago
Aerolineas Argentinas
Sun, Oct 19 - Sun, Oct 26
IGR
Puerto Iguazú
SLZ
São Luís
$921 Roundtrip, found 1 day ago
$921
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sun, Oct 19 from Puerto Iguazú to São Luís, returning Sun, Oct 26, priced at $921 found 1 day ago
Aerolineas Argentinas
Sun, Oct 19 - Sun, Oct 26
IGR
Puerto Iguazú
SLZ
São Luís
$930 Roundtrip, found 1 day ago
$930
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sun, Oct 19 from Puerto Iguazú to São Luís, returning Sun, Oct 26, priced at $930 found 1 day ago
Aerolineas Argentinas
Sun, Oct 19 - Sun, Oct 26
IGR
Puerto Iguazú
SLZ
São Luís
$937 Roundtrip, found 1 day ago
$937
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sun, Oct 19 from Puerto Iguazú to São Luís, returning Sun, Oct 26, priced at $937 found 1 day ago
Aerolineas Argentinas
Sun, Oct 19 - Sun, Oct 26
IGR
Puerto Iguazú
SLZ
São Luís
$963 Roundtrip, found 1 day ago
$963
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sun, Oct 19 from Puerto Iguazú to São Luís, returning Sun, Oct 26, priced at $963 found 1 day ago
Aerolineas Argentinas
Sun, Oct 19 - Sun, Oct 26
IGR
Puerto Iguazú
SLZ
São Luís
$964 Roundtrip, found 1 day ago
$964
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sun, Oct 19 from Puerto Iguazú to São Luís, returning Sun, Oct 26, priced at $964 found 1 day ago
Aerolineas Argentinas
Sun, Oct 19 - Sun, Oct 26
IGR
Puerto Iguazú
SLZ
São Luís
$967 Roundtrip, found 1 day ago
$967
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sun, Oct 19 from Puerto Iguazú to São Luís, returning Sun, Oct 26, priced at $967 found 1 day ago
Aerolineas Argentinas
Sun, Oct 19 - Sun, Oct 26
IGR
Puerto Iguazú
SLZ
São Luís
$968 Roundtrip, found 1 day ago
$968
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sun, Oct 19 from Puerto Iguazú to São Luís, returning Sun, Oct 26, priced at $968 found 1 day ago
Aerolineas Argentinas
Sun, Oct 19 - Sun, Oct 26
IGR
Puerto Iguazú
SLZ
São Luís
$983 Roundtrip, found 1 day ago
$983
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sun, Oct 19 from Puerto Iguazú to São Luís, returning Sun, Oct 26, priced at $983 found 1 day ago
Aerolineas Argentinas
Sun, Oct 19 - Sun, Oct 26
IGR
Puerto Iguazú
SLZ
São Luís
$992 Roundtrip, found 1 day ago
$992
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sun, Oct 19 from Puerto Iguazú to São Luís, returning Sun, Oct 26, priced at $992 found 1 day ago
Flights from Iguazu (IGR) to Sao Luis (SLZ)
Origin airport
Cataratas del Iguazu Intl.
Destination airport
Marechal Cunha Machado Intl.
Airlines serving
Aerolineas Argentinas
Roundtrip price
$906
Distance
1738 mi

Iguazu to Sao Luis Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Iguazu 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 Iguazu 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 Iguazu to Sao Luis in 2025. You can also book with separate airlines for your outbound and return journeys, from $345 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 Iguazu 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 Iguazu 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 Cataratas del Iguazu Intl. Airport (IGR) to Marechal Cunha Machado Intl. Airport (SLZ) cost?
Grab a cheap one-way flight from $345 or cheap return flight from $906 from Cataratas del Iguazu Intl. Airport (IGR) 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 Cataratas del Iguazu Intl. Airport (IGR) to Marechal Cunha Machado Intl. Airport (SLZ)?
Flying in October may help you find better deals, as it's the cheapest month for flights between IGR and SLZ. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Cataratas del Iguazu Intl. Airport (IGR) to Marechal Cunha Machado Intl. Airport (SLZ)?
To find the cheapest airline flying from IGR to SLZ, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Cataratas del Iguazu Intl. Airport (IGR) to Marechal Cunha Machado Intl. Airport (SLZ)?
There are no daily direct flights departing from Cataratas del Iguazu Intl. Airport (IGR) to Marechal Cunha Machado Intl. Airport (SLZ). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from IGR to SLZ?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary 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 Cataratas del Iguazu Intl. Airport (IGR) to Marechal Cunha Machado Intl. Airport (SLZ)?
To avoid possible delays on the Cataratas del Iguazu Intl. Airport (IGR) to Marechal Cunha Machado Intl. Airport (SLZ) route, fly before 3 PM. Flights after this time are 22% more likely to be canceled.**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 Cataratas del Iguazu Intl. Airport (IGR) to Marechal Cunha Machado Intl. Airport (SLZ) last-minute?
Booking your ticket from IGR to SLZ just before your trip is usually more expensive. However, if there's some wiggle room with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book an IGR to SLZ flight and hotel package?
Compared with arranging flights and hotels separately, booking an IGR to SLZ flight and hotel package with Expedia could result in significant savings. Better yet, managing everything in one place takes the hassle out of travel planning. Simply pick your flights and select from our extensive range of hotels, then tailor your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Cataratas del Iguazu Intl. Airport (IGR) to Marechal Cunha Machado Intl. Airport (SLZ)?
If you booked your IGR to SLZ flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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*Available to One Key members.