IAD - POA

$463 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 11/4. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$618
Multiple Airlines
Wed 4/8Tue 4/14
IAD - POA • 1 stop
Cheapest one-way
$240
Copa Airlines
Tue 11/4
IAD - POA • 1 stop
Top airlines
LATAM Airlines
Cheapest • from $686 (round-trip)
Copa Airlines
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Flight Deals
Booking Insights
Flight 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

Wed, Apr 8 - Tue, Apr 14
Multiple Airlines Logo
10:30 pm - 2:35 pmIAD-POA
15h 05m1 stop
Multiple Airlines Logo
5:10 pm - 2:03 pmPOA-IAD
21h 53m2 stops
$618Multiple Airlines
Find Deal
Mon, Mar 2 - Sun, Mar 15
LATAM Airlines Logo
10:05 am - 2:05 pmIAD-POA
26h 00m2 stops
LATAM Airlines Logo
2:05 pm - 2:51 pmPOA-IAD
25h 46m2 stops
$686LATAM Airlines
Find Deal
Mon, Mar 2 - Fri, Mar 13
Copa Airlines Logo
8:29 am - 12:25 amIAD-POA
13h 56m1 stop
Copa Airlines Logo
1:30 am - 12:32 amPOA-IAD
24h 02m1 stop
$696Copa Airlines
Find Deal
Mon, Mar 23 - Thu, Mar 26
Copa Airlines Logo
2:18 am - 12:25 amIAD-POA
21h 07m1 stop
Copa Airlines Logo
1:30 am - 4:15 amPOA-IAD
27h 45m1 stop
$708Copa Airlines
Find Deal
Sun, Dec 7 - Fri, Feb 20
Avianca Logo
2:35 pm - 11:00 amIAD-POA
18h 25m2 stops
Avianca Logo
5:55 pm - 1:15 pmPOA-IAD
21h 20m2 stops
$942Avianca
Find Deal
Tue, Mar 24 - Fri, Mar 27
United Airlines Logo
1:02 pm - 2:35 pmIAD-POA
24h 33m2 stops
United Airlines Logo
5:10 pm - 6:40 amPOA-IAD
14h 30m1 stop
$1,478United Airlines
Find Deal
Tue, Mar 24 - Fri, Mar 27
United Airlines Logo
11:30 pm - 2:35 pmIAD-POA
14h 05m1 stop
United Airlines Logo
3:25 pm - 6:40 amPOA-IAD
16h 15m1 stop
$1,957United Airlines
Find Deal
Mon, Mar 2 - Sun, Mar 15
American Airlines Logo
2:06 pm - 5:45 pmIAD-POA
25h 39m3 stops
American Airlines Logo
5:55 pm - 4:09 pmPOA-IAD
23h 14m2 stops
$2,265American Airlines
Find Deal
Mon, Mar 2 - Sun, Mar 15
American Airlines Logo
6:33 am - 10:55 amIAD-POA
26h 22m3 stops
American Airlines Logo
5:55 pm - 4:09 pmPOA-IAD
23h 14m2 stops
$2,270American Airlines
Find Deal
Fri, Dec 19 - Sat, Jan 3
Avianca Logo
5:45 am - 10:35 amIAD-POA
26h 50m2 stops
Avianca Logo
1:40 pm - 4:25 amPOA-IAD
16h 45m2 stops
$4,459Avianca
Find Deal
Booking Insights

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 LATAM Airlines ($686) and Copa Airlines ($696).

Which airlines fly non-stop between Washington, D.C. Dulles Intl Airport and Porto Alegre?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Washington, D.C. Dulles Intl Airport to Porto Alegre.

There is just one airline that flies from Washington, D.C. Dulles Intl Airport to Porto Alegre direct and that is Copa Airlines. The best round-trip deal found from Copa Airlines for the route is $428.

Good to know

Cheapest flight$240
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 $240 for a one-way ticket and $618 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 is the only airline alliance operating flights between Washington Dulles Airport and Porto Alegre.

  • 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.

Reviews of the 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.
7.6
Copa AirlinesOverall score based on 1561 reviews
8.1Crew
6.8Entertainment
6.9Food
7.4Comfort
7.8Boarding
Airline reviews

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

6.0 GoodZach, Oct 2025DEN - PTY
Read more Copa Airlines reviews

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

Simply as follows:- First, there was no vegetarian option for the meal Second, only 2 washrooms for the entire economy class.

I liked the meatloaf the chicken was awful but the plane was on time and got there and the staff was nice.

Boarding was quick & efficient; they gave boarding groups due priority; staff & air crew were very cordial and helpful, pleasant flight.

Cops Airlines is fantastic! The level of care and professionalism provided by the entire crew was top rate.

the food served was an embarrassment. No connection for charging the cellphone... What a crappy airline.

I selected first class expecting excetional service. It was mediocre at best. The food service was cold, meal choices was poor and on one leg they did provide dessert. I did enjoy the lay day seat but the movies were old and nothing current. Boarding the plane is always hot. So boarding is quite warm until your in the air. I took a small personal air fan. Update the meals and movies.

Very happy with my flight. I would definitely recommend it.

Did upgrade, travel in business it was great (more room I could sleep)

We had a five hour layover in the way home from Colombia. I read the "bout your flight" email carefully before we checked bags. We had to go through security right at the gate. Almost lost our ground coffee because that airport only allows 16 ounce of coffee and we had 18. I've been to 48 countries and never heard of a coffee restriction. I can't follow a rule I don't know about. I requested they bring our coffee to our checked luggage. Instead tey gate checked our bag for free. Back to planning transfers in Dallas I guess

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

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