Cheap Flights from Washington Dulles to Porto Alegre

Compare Washington Dulles to Porto Alegre flight deals

Find the cheapest month or even day of the year to fly to Porto Alegre

Book the best Porto Alegre fare with no extra fees

Map with a flight path from Washington Dulles to Porto Alegre. A plane icon is halfway along the route with a label that says "1+ stops".
1+ stops

Your route at a glance

Cheapest dealR 10,196
Cheapest monthDecember
Most popular airlineAzul Airlines

Find the cheapest month to fly from Washington Dulles to Porto Alegre

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Porto Alegre flights are currently cheapest in January.

Washington Dulles to Porto Alegre: Alternative routes

Compare routes from Washington Dulles to Porto Alegre below. You may find an airport to fly into that's cheaper, faster, or easier than Porto Alegre.

Finding cheap flights from Washington Dulles to Porto Alegre: Frequently asked questions

The best price we found for a return flight from Washington Dulles to Porto Alegre is R 10,193. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Washington Dulles to Porto Alegre. But we found flights with one or more stops from R 10,196.
As of December 2025, there are no flights flying from Washington Dulles to Porto Alegre.
The cheapest month to fly from Washington Dulles to Porto Alegre is usually December.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Porto Alegre Airport on Monday, 8 December 2025.
No airlines currently offer direct flights between Washington Dulles Airport and Porto Alegre Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Porto Alegre but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Porto Alegre is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Copa offers the cheapest flight tickets to Porto Alegre.

Flying from Washington Dulles International Airport (IAD) to Salgado Filho International Airport (POA): what you need to know

  • The timezone in Porto Alegre is UTC-3, which is one hour ahead of Washington DC.

  • Your IAD to POA flight won't wait if you're late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • During popular months such as April, it's a good idea to get to the airport well in advance. Arrive two hours before a domestic departure and four hours ahead of an international flight when you fly during a high season in general.

  • Break up your flight or explore another city along the way with a stopover. Just deselect 'Direct flights only' to see your options when searching for tickets from Washington Dulles International Airport to Salgado Filho International Airport. Many travellers pass through Tocumen International Airport when flying between IAD and POA.

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Salgado Filho International Airport (POA)

  • Right now, R 4,579 is the lowest price we've seen for a one-way Washington Dulles International Airport to Salgado Filho International Airport flight. The best price for a return plane ticket is R 10,196. Bear in mind that fares may change due to availability when booking.

  • Don't leave everything to the last moment. You're more likely to find cheap tickets from IAD to POA if you book ahead. Airlines often offer some amazing early bird deals.

  • If you're flexible with your travel plans, use the 'Whole month' search tool. It'll find the lowest price across every month when searching for a flight from Washington Dulles International Airport to Salgado Filho International Airport.

  • There's no need to check every day to see if fares have gone down when you create a Price Alert. We'll let you know as soon as there's a better deal on cheap flights from IAD to POA.

  • Discover the ideal flight for you with the help of the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Washington Dulles International Airport to Salgado Filho International Airport, use the 'Sort by' function. You can also filter by departure and arrival times, airline, and number of stops.

Handy information about Washington Dulles International Airport (IAD)

  • IAD is located at 1 Saarinen Circle.

  • 74.39% of flights that leave from Washington Dulles International Airport touch down at their destination on time.

  • To get to Washington Dulles International Airport from central Washington DC, it'll take around 50 minutes by car. Of course, this depends on traffic conditions. It's approximately 56 kilometres from the airport to the city centre.

  • Expect a journey time of around 3 hours 25 minutes on public transport.

  • Booked an early flight from Washington Dulles International Airport to Salgado Filho International Airport? Avoid the stress of rushing to the airport (and sneak in some extra snooze time) by choosing one of these stays near IAD:

Arriving at Salgado Filho International Airport (POA)

Getting from Salgado Filho International Airport (POA) to central Porto Alegre

  • Salgado Filho International Airport is approximately 11 kilometres from the centre of Porto Alegre. The drive time takes around 20 minutes.

  • It takes around 50 minutes if you're travelling on public transport.

When to fly to Salgado Filho International Airport (POA)

  • It's time to pick your trip dates for your flight from Washington Dulles International Airport to Salgado Filho International Airport. June is the busiest month to visit Porto Alegre. If you want a quieter vibe, go in May.

  • When booking your flight from Washington Dulles International Airport to Salgado Filho International Airport, consider the type of weather you like. January is the warmest month in Porto Alegre, with the temperature ranging from 17ºC (63ºF) to 34ºC (93ºF).

  • Look for cheap tickets from IAD to POA in July if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between 8ºC (46ºF) and 23ºC (73ºF) on average.

Explore more of Brazil

  • Porto Alegre has plenty to offer, but there are so many other corners of Brazil waiting to be explored. Around 483 kilometres north-east of Porto Alegre, a visit to Joinville will fill your itinerary to the brim. Start with popular sights like Rua das Palmeiras, Parque Zoobotanico and Expoville Park.

  • If there's time to check out another side of Brazil, consider Florianopolis, about 370 kilometres north-east of Porto Alegre. Joaquina beach, Farol da Barra da Lagoa and Hercilio Luz Bridge are highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.