WAS - POA

$200 Find Cheap Flights from Washington, D.C. 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 Washington, D.C. to Porto Alegre departing on 8/31. 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 Washington, D.C. to Porto Alegre (WAS-POA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. 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 Washington, D.C. 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
Find Deal
Wed, Nov 12 - Tue, Dec 2
Copa Airlines Logo
8:25 am - 12:32 amIAD-POA
14h 07m1 stop
Copa Airlines Logo
1:37 am - 11:33 pmPOA-IAD
23h 56m1 stop
$541Copa Airlines
Find Deal
Thu, Oct 2 - Fri, Oct 10
Copa Airlines Logo
2:25 am - 12:20 amIAD-POA
20h 55m1 stop
Copa Airlines Logo
1:27 am - 3:06 pmPOA-IAD
14h 39m1 stop
$575Copa Airlines
Find Deal
Fri, Oct 3 - Sat, Oct 11
 Logo
7:00 am - 1:40 pmIAD-POA
29h 40m2 stops
 Logo
9:05 pm - 5:35 amPOA-IAD
33h 30m2 stops
Fri, Oct 3 - Sat, Oct 11
 Logo
5:45 am - 7:40 amIAD-POA
24h 55m3 stops
 Logo
9:05 pm - 5:35 amPOA-IAD
33h 30m2 stops
Wed, Nov 12 - Wed, Dec 3
GOL Logo
2:20 pm - 11:40 pmIAD-POA
31h 20m2 stops
GOL Logo
1:30 pm - 4:06 pmPOA-IAD
28h 36m2 stops
$766GOL
Find Deal
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
$781GOL
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
$905LATAM Airlines
Find Deal
Wed, Nov 12 - Wed, Dec 3
United Airlines Logo
10:30 pm - 4:50 pmIAD-POA
16h 20m1 stop
United Airlines Logo
2:40 pm - 6:35 amPOA-IAD
17h 55m1 stop
$1,097United Airlines
Find Deal
Wed, Nov 12 - Wed, Dec 3
United Airlines Logo
10:30 pm - 6:00 pmIAD-POA
17h 30m1 stop
United Airlines Logo
5:35 pm - 6:35 amPOA-IAD
15h 00m1 stop
$1,315United Airlines
Find Deal
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KAYAK's insights & trends for Washington, D.C. to Porto Alegre flights

Get data-powered insights and trends into flights from Washington, D.C. 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, D.C. 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, D.C. to Porto Alegre were found on Copa Airlines ($521) and GOL ($766).

Good to know

Low seasonMay
High seasonDecember
Cheapest flight$200
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly with an average 60% increase in price.
Flight from Washington Dulles Airport to Porto Alegre

When to book flights from Washington, D.C. to Porto Alegre

Are your dates flexible? Find out the best times to travel from Washington, D.C. 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 flights from Washington, D.C. to Porto Alegre

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. 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, D.C. and Porto Alegre?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington, D.C. and on arrival in Porto Alegre.

  • Which airports will I be using when flying from Washington, D.C. to Porto Alegre?

    When flying out of Washington, D.C. you will be using one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be landing at Porto Alegre Salgado Filho.

  • Which aircraft models fly most regularly from Washington, D.C. to Porto Alegre?

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

  • Which airline alliances offer flights from Washington, D.C. to Porto Alegre?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Washington, D.C. 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, D.C. 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, D.C. to Porto Alegre.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. 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, D.C. 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, D.C. 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, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Washington, D.C. 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 Washington, D.C. 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 1452 reviews
8.1Crew
6.8Entertainment
7.4Comfort
6.8Food
7.8Boarding
Airline reviews

Enforce the boarding process by group numbers. Tell people to stay seated during the meal/drink distribution. It took forever to get food and drinks because people would not stay out the isle and let the crew do their jobs. Everyone wanted to go to the bathroom forcing the crew to enter and leave the isle constantly so people can pass. Tell people to keep their electronics off speaker mode. No one wants to hear phone conversations and music playing.

4.0 OkayPaul, Jun 2025AUA - PTY
Read more Copa Airlines reviews

Enforce the boarding process by group numbers. Tell people to stay seated during the meal/drink distribution. It took forever to get food and drinks because people would not stay out the isle and let the crew do their jobs. Everyone wanted to go to the bathroom forcing the crew to enter and leave the isle constantly so people can pass. Tell people to keep their electronics off speaker mode. No one wants to hear phone conversations and music playing.

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

We were in transit from Lima (flight at 1.10am) and we were in stand by in our flight from Panama to Washington. We wait from 4.30 am to 18.30pm in the Airport. The company give us 2 x 15 dollars for eat during the day and a personnal travel voucher of 400 dollars each. Do they buy food one time something in the Airport ??? And one of us live in France so the voucher is not usable. More than 24 hours travel !! And our place were near the toilets, with 8 children around us. The boy behind my seat stamped his feet on my back all the flight. Really Wonder full ! So we are totally unhappy with our travel. Thanks Copa Airlines....

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.

I upgraded myself to Business Class at the last minute so I had a DREAMS window seat. Seeing as I've never flown Business before everything was novel and fun for me and it made the 7 hour flight much more enjoyable for sure.

It was reasonably comfortable trip considering its duration (7 hours). Crew was very good and friendly, seats very more comfortable than other planes. Only negative comment would be that the bathroom light did not get its full brightness 🙃

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

Everything you need to know for your flight from Washington, D.C. to Porto Alegre

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