$714 Cheap Flights from Porto Alegre (POA) to Duluth (DLH)

View $714 flight on Sun, May 31, 2026Opens in a new window

Popular airlines from Salgado Filho Intl. Airport (POA) to Duluth, MN (DLH-Duluth Intl.)

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Cheap Flights from Porto Alegre to Duluth (POA-DLH)

Prices were available within the past 7 days and start at $714 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Porto Alegre (POA) to Duluth (DLH)
Origin airport
Salgado Filho Intl.
Destination airport
Duluth Intl.
Distance
5891 mi

Porto Alegre to Duluth Flights

The cheapest times to fly from Porto Alegre to Duluth

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

 

The best time to book a flight from Porto Alegre to Duluth

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

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 Porto Alegre to Duluth in 2026. You can also book with separate airlines for your outbound and return journeys, from $714 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 Porto Alegre to Duluth 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 Porto Alegre to Duluth 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 Salgado Filho Intl. Airport (POA) to Duluth Intl. Airport (DLH) cost?
Secure a cheap one-way flight from $714 or cheap return flight from Salgado Filho Intl. Airport (POA) to Duluth Intl. Airport (DLH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Salgado Filho Intl. Airport (POA) to Duluth Intl. Airport (DLH)?
is the least expensive month to fly from POA to DLH. Timing your trip outside of the busy season is often the key to finding better fares.
What is the cheapest airline that flies from Salgado Filho Intl. Airport (POA) to Duluth Intl. Airport (DLH)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll take you from POA to DLH. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Salgado Filho Intl. Airport (POA) to Duluth Intl. Airport (DLH)?
There aren't any daily direct flights departing from Salgado Filho Intl. Airport (POA) to Duluth Intl. Airport (DLH). But you can opt for 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 POA to DLH?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change based on a number of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Salgado Filho Intl. Airport (POA) to Duluth Intl. Airport (DLH)?
To arrive at Duluth Intl. Airport (DLH) on schedule, select a flight that leaves from Salgado Filho Intl. Airport (POA) 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 Salgado Filho Intl. Airport (POA) to Duluth Intl. Airport (DLH) last-minute?
Last-minute bookings from POA to DLH are usually more expensive. To lock in the lowest prices, start searching for flights as early as possible. That said, if you can play around with your travel dates, you may score a cheap ticket just before your departure.
Is it cheaper to book a POA to DLH flight and hotel package?
Securing a POA to DLH flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Pick from our wide range of hotels and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Salgado Filho Intl. Airport (POA) to Duluth Intl. Airport (DLH)?
In most cases, you're able to cancel or reschedule your POA to DLH flight. However, additional fees may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's policies and fees 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.