IAD - POA

$200 Find Cheap Flights from Washington Dulles Airport to Porto Alegre

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Porto Alegre departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Porto Alegre

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Porto Alegre, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Porto Alegre, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Dulles Intl to Porto Alegre (IAD-POA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Porto Alegre that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Porto Alegre

Sun, Oct 26 - Sun, Nov 9
Copa Airlines Logo
2:18 am - 12:32 amIAD-POA
21h 14m1 stop
Copa Airlines Logo
1:37 am - 11:33 pmPOA-IAD
23h 56m1 stop
$521Copa Airlines
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Wed, Aug 6 - Fri, Aug 8
Copa Airlines Logo
2:45 am - 12:15 amIAD-POA
20h 30m1 stop
Copa Airlines Logo
1:23 am - 3:04 pmPOA-IAD
14h 41m1 stop
$541Copa Airlines
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Fri, Oct 3 - Sat, Oct 11
Avianca Logo
7:00 am - 4:15 pmIAD-POA
32h 15m2 stops
Avianca Logo
11:05 am - 5:35 amPOA-IAD
43h 30m2 stops
$617Avianca
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Fri, Oct 3 - Sat, Oct 11
Logo
4:05 am - 4:50 pmIAD-POA
35h 45m3 stops
Logo
9:05 pm - 5:35 amPOA-IAD
33h 30m2 stops
$632
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Fri, Oct 3 - Sat, Oct 11
Logo
4:05 am - 4:50 pmIAD-POA
35h 45m3 stops
Logo
8:25 am - 2:00 pmPOA-IAD
30h 35m3 stops
$655
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Thu, Aug 7 - Sat, Aug 9
LATAM Airlines Logo
8:31 pm - 1:50 pmIAD-POA
40h 19m2 stops
LATAM Airlines Logo
5:45 pm - 9:19 amPOA-IAD
16h 34m2 stops
$672LATAM Airlines
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Wed, Nov 12 - Wed, Dec 3
GOL Logo
2:20 pm - 11:40 pmIAD-POA
31h 20m2 stops
GOL Logo
11:20 am - 4:06 pmPOA-IAD
30h 46m2 stops
$751GOL
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Sat, Aug 23 - Mon, Aug 25
Avianca Logo
3:25 pm - 7:20 pmIAD-POA
26h 55m2 stops
Avianca Logo
6:35 pm - 5:35 amPOA-IAD
36h 00m2 stops
$756Avianca
Find Deal
Wed, Nov 12 - Tue, Dec 2
LATAM Airlines Logo
6:00 am - 6:25 amIAD-POA
22h 25m2 stops
LATAM Airlines Logo
4:40 am - 12:07 amPOA-IAD
21h 27m2 stops
$789LATAM Airlines
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Mon, Oct 27 - Mon, Nov 10
GOL Logo
3:20 pm - 11:40 pmIAD-POA
31h 20m2 stops
GOL Logo
5:00 am - 1:00 pmPOA-IAD
34h 00m2 stops
$790GOL
Find Deal
Useful Info

KAYAK's insights & trends for Dulles Intl to Porto Alegre flights

Get data-powered insights and trends into flights from Dulles Intl to Porto Alegre to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Washington Dulles Airport to Porto Alegre?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington Dulles Airport to Porto Alegre were found on Copa Airlines ($521) and Avianca ($617).

Find deals

Good to know

Cheapest flight$200
Flight from Washington Dulles Airport to Porto Alegre

When to book flights from Dulles Intl to Porto Alegre

Are your dates flexible? Find out the best times to travel from Dulles Intl to Porto Alegre based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Porto Alegre flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Porto Alegre?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Porto Alegre was $200 for a one-way ticket and $521 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Porto Alegre?

    Yes, you’ll need a passport to travel to Porto Alegre from Washington Dulles Airport.

  • Which airports will I be using when flying from Washington Dulles Airport to Porto Alegre?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Porto Alegre, also known as Porto Alegre Salgado Filho.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Porto Alegre?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Porto Alegre?

    Star Alliance, and oneworld are the airline alliances operating flights between Washington Dulles Airport and Porto Alegre, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Porto Alegre?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Porto Alegre.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Porto Alegre?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto Alegre from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Porto Alegre?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto Alegre with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and POA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Porto Alegre?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto Alegre from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Dulles Intl to Porto Alegre

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Porto Alegre. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Porto Alegre? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Copa AirlinesOverall score based on 1451 reviews
6.8Entertainment
8.1Crew
7.4Comfort
7.8Boarding
6.8Food
Airline reviews

Placed us in the last rear row of the plane so could not recline seats because of the rear wall, and also made it more of a tight space when the passenger in front reclined their seat. While understand seat assignments, every passenger should be afforded a reclining seat. The odor control scent from the restrooms was overwhelming strong. My wife and I could not deal with it, and she suffered a terrible headache as a result. I kept getting hit by the crew since I was on the ilse seat. No apologies, nothing. They made me feel like I was supposed to take the beating for a 3 hr flight.

2.0 MediocrePaul, May 2025MIA - PTY
Read more Copa Airlines reviews

Placed us in the last rear row of the plane so could not recline seats because of the rear wall, and also made it more of a tight space when the passenger in front reclined their seat. While understand seat assignments, every passenger should be afforded a reclining seat. The odor control scent from the restrooms was overwhelming strong. My wife and I could not deal with it, and she suffered a terrible headache as a result. I kept getting hit by the crew since I was on the ilse seat. No apologies, nothing. They made me feel like I was supposed to take the beating for a 3 hr flight.

There was no individual at the front check in when I arrived. I waited for at least 15 minutes and walked around asking security/janitors if they could help and they did not have a solution. So I had to take my checked bag through security and they threw away some of my items. I ended up making it to the gate only a few minutes before it closed due to my waiting for an agent at check in.

The flight was delayed twice and I could not speak with anyone at the airport about checking in. The phone number to Copa - the customer service agents were polite. They are just limited at helping because they are not at the airport

It would have been better if they don't separate families in seating. We were seated in the aile row in the middle of a family of four. It would have been better if they they seat the family of four together than separated.

It was good, plane is a bit older so seats are somewhat flat

Great from check in all the way to the end. Very happy with Copa

Copa stranded us ans then tried to charge us thousands to leave Panama.

Well the airline was fine. The only thing is I was charged for a checked in luggage. But when I reserved the ticket it showed a check in bag allowed. Who can I get in contact with for reimbursement.? The airline said I had to speak to whoever I booked ticket with.

Friendly flight team and seamless travel from one stop to next.

I loved my experience. Very safe, Very informative and very friendly.

Everything you need to know for your flight from Dulles Intl to Porto Alegre

Information on your arrival and departure airports

Washington Dulles Airport (IAD)
Porto Alegre (POA)

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